feat: Add Multi-Pair Divergence Live Trading Module

- Introduced a new module for live trading based on the Multi-Pair Divergence Strategy.
- Implemented configuration classes for OKX API and multi-pair settings.
- Developed data feed functionality to fetch real-time OHLCV and funding data for multiple assets.
- Created a trading bot orchestrator to manage trading cycles, including entry and exit signals based on ML model predictions.
- Added comprehensive logging and error handling for robust operation.
- Included a README with setup instructions and usage guidelines for the new module.

.gitignore

@@ -171,3 +171,7 @@ cython_debug/
 ./logs/
 *.csv
 research/regime_results.html
+data/backtest_runs.db
+.gitignore
+live_trading/regime_model.pkl
+live_trading/positions.json

api/__init__.py

@@ -0,0 +1,3 @@
+"""
+FastAPI backend for Lowkey Backtest UI.
+"""

api/main.py

@@ -0,0 +1,47 @@
+"""
+FastAPI application entry point for Lowkey Backtest UI.
+
+Run with: uvicorn api.main:app --reload
+"""
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from api.models.database import init_db
+from api.routers import backtest, data, strategies
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """Initialize database on startup."""
+    init_db()
+    yield
+
+
+app = FastAPI(
+    title="Lowkey Backtest API",
+    description="API for running and analyzing trading strategy backtests",
+    version="0.1.0",
+    lifespan=lifespan,
+)
+
+# CORS configuration for local development
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["http://localhost:5173", "http://127.0.0.1:5173"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Register routers
+app.include_router(strategies.router, prefix="/api", tags=["strategies"])
+app.include_router(data.router, prefix="/api", tags=["data"])
+app.include_router(backtest.router, prefix="/api", tags=["backtest"])
+
+
+@app.get("/api/health")
+async def health_check():
+    """Health check endpoint."""
+    return {"status": "ok", "service": "lowkey-backtest-api"}

api/models/__init__.py

@@ -0,0 +1,3 @@
+"""
+Pydantic schemas and database models.
+"""

api/models/database.py

@@ -0,0 +1,99 @@
+"""
+SQLAlchemy database models and session management for backtest run persistence.
+"""
+import json
+from datetime import datetime, timezone
+from pathlib import Path
+
+from sqlalchemy import JSON, Column, DateTime, Float, Integer, String, Text, create_engine
+from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker
+
+# Database file location
+DB_PATH = Path(__file__).parent.parent.parent / "data" / "backtest_runs.db"
+DATABASE_URL = f"sqlite:///{DB_PATH}"
+
+engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+class Base(DeclarativeBase):
+    """Base class for SQLAlchemy models."""
+    pass
+
+
+class BacktestRun(Base):
+    """
+    Persisted backtest run record.
+    
+    Stores all information needed to display and compare runs.
+    """
+    __tablename__ = "backtest_runs"
+    
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    run_id = Column(String(36), unique=True, nullable=False, index=True)
+    
+    # Configuration
+    strategy = Column(String(50), nullable=False, index=True)
+    symbol = Column(String(20), nullable=False, index=True)
+    exchange = Column(String(20), nullable=False, default="okx")
+    market_type = Column(String(20), nullable=False)
+    timeframe = Column(String(10), nullable=False)
+    leverage = Column(Integer, nullable=False, default=1)
+    params = Column(JSON, nullable=False, default=dict)
+    
+    # Date range
+    start_date = Column(String(20), nullable=True)
+    end_date = Column(String(20), nullable=True)
+    
+    # Metrics (denormalized for quick listing)
+    total_return = Column(Float, nullable=False)
+    benchmark_return = Column(Float, nullable=False, default=0.0)
+    alpha = Column(Float, nullable=False, default=0.0)
+    sharpe_ratio = Column(Float, nullable=False)
+    max_drawdown = Column(Float, nullable=False)
+    win_rate = Column(Float, nullable=False)
+    total_trades = Column(Integer, nullable=False)
+    profit_factor = Column(Float, nullable=True)
+    total_fees = Column(Float, nullable=False, default=0.0)
+    total_funding = Column(Float, nullable=False, default=0.0)
+    liquidation_count = Column(Integer, nullable=False, default=0)
+    liquidation_loss = Column(Float, nullable=False, default=0.0)
+    adjusted_return = Column(Float, nullable=True)
+    
+    # Full data (JSON serialized)
+    equity_curve = Column(Text, nullable=False)  # JSON array
+    trades = Column(Text, nullable=False)  # JSON array
+    
+    # Metadata
+    created_at = Column(DateTime, nullable=False, default=lambda: datetime.now(timezone.utc))
+    
+    def set_equity_curve(self, data: list[dict]):
+        """Serialize equity curve to JSON string."""
+        self.equity_curve = json.dumps(data)
+    
+    def get_equity_curve(self) -> list[dict]:
+        """Deserialize equity curve from JSON string."""
+        return json.loads(self.equity_curve) if self.equity_curve else []
+    
+    def set_trades(self, data: list[dict]):
+        """Serialize trades to JSON string."""
+        self.trades = json.dumps(data)
+    
+    def get_trades(self) -> list[dict]:
+        """Deserialize trades from JSON string."""
+        return json.loads(self.trades) if self.trades else []
+
+
+def init_db():
+    """Create database tables if they don't exist."""
+    DB_PATH.parent.mkdir(parents=True, exist_ok=True)
+    Base.metadata.create_all(bind=engine)
+
+
+def get_db() -> Session:
+    """Get database session (dependency injection)."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

api/models/schemas.py

@@ -0,0 +1,162 @@
+"""
+Pydantic schemas for API request/response models.
+"""
+from datetime import datetime
+from typing import Any
+
+from pydantic import BaseModel, Field
+
+
+# --- Strategy Schemas ---
+
+class StrategyParam(BaseModel):
+    """Single strategy parameter definition."""
+    name: str
+    value: Any
+    param_type: str = Field(description="Type: int, float, bool, list")
+    min_value: float | None = None
+    max_value: float | None = None
+    description: str | None = None
+
+
+class StrategyInfo(BaseModel):
+    """Strategy information with parameters."""
+    name: str
+    display_name: str
+    market_type: str
+    default_leverage: int
+    default_params: dict[str, Any]
+    grid_params: dict[str, Any]
+
+
+class StrategiesResponse(BaseModel):
+    """Response for GET /api/strategies."""
+    strategies: list[StrategyInfo]
+
+
+# --- Symbol/Data Schemas ---
+
+class SymbolInfo(BaseModel):
+    """Available symbol information."""
+    symbol: str
+    exchange: str
+    market_type: str
+    timeframes: list[str]
+    start_date: str | None = None
+    end_date: str | None = None
+    row_count: int = 0
+
+
+class DataStatusResponse(BaseModel):
+    """Response for GET /api/data/status."""
+    symbols: list[SymbolInfo]
+
+
+# --- Backtest Schemas ---
+
+class BacktestRequest(BaseModel):
+    """Request body for POST /api/backtest."""
+    strategy: str
+    symbol: str
+    exchange: str = "okx"
+    timeframe: str = "1h"
+    market_type: str = "perpetual"
+    start_date: str | None = None
+    end_date: str | None = None
+    init_cash: float = 10000.0
+    leverage: int | None = None
+    fees: float | None = None
+    slippage: float = 0.001
+    sl_stop: float | None = None
+    tp_stop: float | None = None
+    sl_trail: bool = False
+    params: dict[str, Any] = Field(default_factory=dict)
+
+
+class TradeRecord(BaseModel):
+    """Single trade record."""
+    entry_time: str
+    exit_time: str | None = None
+    entry_price: float
+    exit_price: float | None = None
+    size: float
+    direction: str
+    pnl: float | None = None
+    return_pct: float | None = None
+    status: str = "closed"
+
+
+class EquityPoint(BaseModel):
+    """Single point on equity curve."""
+    timestamp: str
+    value: float
+    drawdown: float = 0.0
+
+
+class BacktestMetrics(BaseModel):
+    """Backtest performance metrics."""
+    total_return: float
+    benchmark_return: float = 0.0
+    alpha: float = 0.0
+    sharpe_ratio: float
+    max_drawdown: float
+    win_rate: float
+    total_trades: int
+    profit_factor: float | None = None
+    avg_trade_return: float | None = None
+    total_fees: float = 0.0
+    total_funding: float = 0.0
+    liquidation_count: int = 0
+    liquidation_loss: float = 0.0
+    adjusted_return: float | None = None
+
+
+class BacktestResult(BaseModel):
+    """Complete backtest result."""
+    run_id: str
+    strategy: str
+    symbol: str
+    market_type: str
+    timeframe: str
+    start_date: str
+    end_date: str
+    leverage: int
+    params: dict[str, Any]
+    metrics: BacktestMetrics
+    equity_curve: list[EquityPoint]
+    trades: list[TradeRecord]
+    created_at: str
+
+
+class BacktestSummary(BaseModel):
+    """Summary for backtest list view."""
+    run_id: str
+    strategy: str
+    symbol: str
+    market_type: str
+    timeframe: str
+    total_return: float
+    sharpe_ratio: float
+    max_drawdown: float
+    total_trades: int
+    created_at: str
+    params: dict[str, Any]
+
+
+class BacktestListResponse(BaseModel):
+    """Response for GET /api/backtests."""
+    runs: list[BacktestSummary]
+    total: int
+
+
+# --- Comparison Schemas ---
+
+class CompareRequest(BaseModel):
+    """Request body for POST /api/compare."""
+    run_ids: list[str] = Field(min_length=2, max_length=5)
+
+
+class CompareResult(BaseModel):
+    """Comparison of multiple backtest runs."""
+    runs: list[BacktestResult]
+    param_diff: dict[str, list[Any]]

api/routers/__init__.py

@@ -0,0 +1,3 @@
+"""
+API routers for backtest, strategies, and data endpoints.
+"""

api/routers/backtest.py

@@ -0,0 +1,193 @@
+"""
+Backtest execution and history endpoints.
+"""
+from typing import Any
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+
+from api.models.database import get_db
+from api.models.schemas import (
+    BacktestListResponse,
+    BacktestRequest,
+    BacktestResult,
+    CompareRequest,
+    CompareResult,
+)
+from api.services.runner import get_runner
+from api.services.storage import get_storage
+from engine.logging_config import get_logger
+
+router = APIRouter()
+logger = get_logger(__name__)
+
+
+@router.post("/backtest", response_model=BacktestResult)
+async def run_backtest(
+    request: BacktestRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Execute a backtest with the specified configuration.
+    
+    Runs the strategy on historical data and returns metrics,
+    equity curve, and trade records. Results are automatically saved.
+    """
+    runner = get_runner()
+    storage = get_storage()
+    
+    try:
+        # Execute backtest
+        result = runner.run(request)
+        
+        # Save to database
+        storage.save_run(db, result)
+        
+        logger.info(
+            "Backtest completed and saved: %s (return=%.2f%%, sharpe=%.2f)",
+            result.run_id,
+            result.metrics.total_return,
+            result.metrics.sharpe_ratio,
+        )
+        
+        return result
+        
+    except KeyError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid strategy: {e}")
+    except FileNotFoundError as e:
+        raise HTTPException(status_code=404, detail=f"Data not found: {e}")
+    except Exception as e:
+        logger.error("Backtest failed: %s", e, exc_info=True)
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+@router.get("/backtests", response_model=BacktestListResponse)
+async def list_backtests(
+    limit: int = Query(50, ge=1, le=200),
+    offset: int = Query(0, ge=0),
+    strategy: str | None = None,
+    symbol: str | None = None,
+    db: Session = Depends(get_db),
+):
+    """
+    List saved backtest runs with optional filtering.
+    
+    Returns summaries for quick display in the history sidebar.
+    """
+    storage = get_storage()
+    
+    runs, total = storage.list_runs(
+        db, 
+        limit=limit, 
+        offset=offset,
+        strategy=strategy,
+        symbol=symbol,
+    )
+    
+    return BacktestListResponse(runs=runs, total=total)
+
+
+@router.get("/backtest/{run_id}", response_model=BacktestResult)
+async def get_backtest(
+    run_id: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Retrieve a specific backtest run by ID.
+    
+    Returns full result including equity curve and trades.
+    """
+    storage = get_storage()
+    
+    result = storage.get_run(db, run_id)
+    
+    if not result:
+        raise HTTPException(status_code=404, detail=f"Run not found: {run_id}")
+    
+    return result
+
+
+@router.delete("/backtest/{run_id}")
+async def delete_backtest(
+    run_id: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Delete a backtest run.
+    """
+    storage = get_storage()
+    
+    deleted = storage.delete_run(db, run_id)
+    
+    if not deleted:
+        raise HTTPException(status_code=404, detail=f"Run not found: {run_id}")
+    
+    return {"status": "deleted", "run_id": run_id}
+
+
+@router.post("/compare", response_model=CompareResult)
+async def compare_runs(
+    request: CompareRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Compare multiple backtest runs (2-5 runs).
+    
+    Returns full results for each run plus parameter differences.
+    """
+    storage = get_storage()
+    
+    runs = storage.get_runs_by_ids(db, request.run_ids)
+    
+    if len(runs) != len(request.run_ids):
+        found_ids = {r.run_id for r in runs}
+        missing = [rid for rid in request.run_ids if rid not in found_ids]
+        raise HTTPException(
+            status_code=404, 
+            detail=f"Runs not found: {missing}"
+        )
+    
+    # Calculate parameter differences
+    param_diff = _calculate_param_diff(runs)
+    
+    return CompareResult(runs=runs, param_diff=param_diff)
+
+
+def _calculate_param_diff(runs: list[BacktestResult]) -> dict[str, list[Any]]:
+    """
+    Find parameters that differ between runs.
+    
+    Returns dict mapping param name to list of values (one per run).
+    """
+    if not runs:
+        return {}
+    
+    # Collect all param keys
+    all_keys: set[str] = set()
+    for run in runs:
+        all_keys.update(run.params.keys())
+    
+    # Also include strategy and key config
+    all_keys.update(['strategy', 'symbol', 'leverage', 'timeframe'])
+    
+    diff: dict[str, list[Any]] = {}
+    
+    for key in sorted(all_keys):
+        values = []
+        for run in runs:
+            if key == 'strategy':
+                values.append(run.strategy)
+            elif key == 'symbol':
+                values.append(run.symbol)
+            elif key == 'leverage':
+                values.append(run.leverage)
+            elif key == 'timeframe':
+                values.append(run.timeframe)
+            else:
+                values.append(run.params.get(key))
+        
+        # Only include if values differ
+        if len(set(str(v) for v in values)) > 1:
+            diff[key] = values
+    
+    return diff

api/routers/data.py

@@ -0,0 +1,97 @@
+"""
+Data status and symbol information endpoints.
+"""
+from pathlib import Path
+
+import pandas as pd
+from fastapi import APIRouter
+
+from api.models.schemas import DataStatusResponse, SymbolInfo
+
+router = APIRouter()
+
+# Base path for CCXT data
+DATA_BASE = Path(__file__).parent.parent.parent / "data" / "ccxt"
+
+
+def _scan_available_data() -> list[SymbolInfo]:
+    """
+    Scan the data directory for available symbols and timeframes.
+    
+    Returns list of SymbolInfo with date ranges and row counts.
+    """
+    symbols = []
+    
+    if not DATA_BASE.exists():
+        return symbols
+    
+    # Structure: data/ccxt/{exchange}/{market_type}/{symbol}/{timeframe}.csv
+    for exchange_dir in DATA_BASE.iterdir():
+        if not exchange_dir.is_dir():
+            continue
+        exchange = exchange_dir.name
+        
+        for market_dir in exchange_dir.iterdir():
+            if not market_dir.is_dir():
+                continue
+            market_type = market_dir.name
+            
+            for symbol_dir in market_dir.iterdir():
+                if not symbol_dir.is_dir():
+                    continue
+                symbol = symbol_dir.name
+                
+                # Find all timeframes
+                timeframes = []
+                start_date = None
+                end_date = None
+                row_count = 0
+                
+                for csv_file in symbol_dir.glob("*.csv"):
+                    tf = csv_file.stem
+                    timeframes.append(tf)
+                    
+                    # Read first and last rows for date range
+                    try:
+                        df = pd.read_csv(csv_file, parse_dates=['timestamp'])
+                        if not df.empty:
+                            row_count = len(df)
+                            start_date = df['timestamp'].min().strftime("%Y-%m-%d")
+                            end_date = df['timestamp'].max().strftime("%Y-%m-%d")
+                    except Exception:
+                        pass
+                
+                if timeframes:
+                    symbols.append(SymbolInfo(
+                        symbol=symbol,
+                        exchange=exchange,
+                        market_type=market_type,
+                        timeframes=sorted(timeframes),
+                        start_date=start_date,
+                        end_date=end_date,
+                        row_count=row_count,
+                    ))
+    
+    return symbols
+
+
+@router.get("/symbols", response_model=DataStatusResponse)
+async def get_symbols():
+    """
+    Get list of available symbols with their data ranges.
+    
+    Scans the local data directory for downloaded OHLCV data.
+    """
+    symbols = _scan_available_data()
+    return DataStatusResponse(symbols=symbols)
+
+
+@router.get("/data/status", response_model=DataStatusResponse)
+async def get_data_status():
+    """
+    Get detailed data inventory status.
+    
+    Alias for /symbols with additional metadata.
+    """
+    symbols = _scan_available_data()
+    return DataStatusResponse(symbols=symbols)

api/routers/strategies.py

@@ -0,0 +1,67 @@
+"""
+Strategy information endpoints.
+"""
+from typing import Any
+
+import numpy as np
+from fastapi import APIRouter
+
+from api.models.schemas import StrategiesResponse, StrategyInfo
+from strategies.factory import get_registry
+
+router = APIRouter()
+
+
+def _serialize_param_value(value: Any) -> Any:
+    """Convert numpy arrays and other types to JSON-serializable format."""
+    if isinstance(value, np.ndarray):
+        return value.tolist()
+    if isinstance(value, (np.integer, np.floating)):
+        return value.item()
+    return value
+
+
+def _get_display_name(name: str) -> str:
+    """Convert strategy key to display name."""
+    display_names = {
+        "rsi": "RSI Strategy",
+        "macross": "MA Crossover",
+        "meta_st": "Meta Supertrend",
+        "regime": "Regime Reversion (ML)",
+    }
+    return display_names.get(name, name.replace("_", " ").title())
+
+
+@router.get("/strategies", response_model=StrategiesResponse)
+async def get_strategies():
+    """
+    Get list of available strategies with their parameters.
+    
+    Returns strategy names, default parameters, and grid search ranges.
+    """
+    registry = get_registry()
+    strategies = []
+    
+    for name, config in registry.items():
+        strategy_instance = config.strategy_class()
+        
+        # Serialize parameters (convert numpy arrays to lists)
+        default_params = {
+            k: _serialize_param_value(v) 
+            for k, v in config.default_params.items()
+        }
+        grid_params = {
+            k: _serialize_param_value(v) 
+            for k, v in config.grid_params.items()
+        }
+        
+        strategies.append(StrategyInfo(
+            name=name,
+            display_name=_get_display_name(name),
+            market_type=strategy_instance.default_market_type.value,
+            default_leverage=strategy_instance.default_leverage,
+            default_params=default_params,
+            grid_params=grid_params,
+        ))
+    
+    return StrategiesResponse(strategies=strategies)

api/services/__init__.py

@@ -0,0 +1,3 @@
+"""
+Business logic services for backtest execution and storage.
+"""

api/services/runner.py

@@ -0,0 +1,300 @@
+"""
+Backtest runner service that wraps the existing Backtester engine.
+"""
+import uuid
+from datetime import datetime, timezone
+from typing import Any
+
+import pandas as pd
+
+from api.models.schemas import (
+    BacktestMetrics,
+    BacktestRequest,
+    BacktestResult,
+    EquityPoint,
+    TradeRecord,
+)
+from engine.backtester import Backtester
+from engine.data_manager import DataManager
+from engine.logging_config import get_logger
+from engine.market import MarketType
+from strategies.factory import get_strategy
+
+logger = get_logger(__name__)
+
+
+class BacktestRunner:
+    """
+    Service for executing backtests via the API.
+    
+    Wraps the existing Backtester engine and converts results
+    to API response format.
+    """
+    
+    def __init__(self):
+        self.dm = DataManager()
+        self.bt = Backtester(self.dm)
+    
+    def run(self, request: BacktestRequest) -> BacktestResult:
+        """
+        Execute a backtest and return structured results.
+        
+        Args:
+            request: BacktestRequest with strategy, symbol, and parameters
+            
+        Returns:
+            BacktestResult with metrics, equity curve, and trades
+        """
+        # Get strategy instance
+        strategy, default_params = get_strategy(request.strategy, is_grid=False)
+        
+        # Merge default params with request params
+        params = {**default_params, **request.params}
+        
+        # Convert market type string to enum
+        market_type = MarketType(request.market_type)
+        
+        # Override strategy market type if specified
+        strategy.default_market_type = market_type
+        
+        logger.info(
+            "Running backtest: %s on %s (%s), params=%s",
+            request.strategy, request.symbol, request.timeframe, params
+        )
+        
+        # Execute backtest
+        result = self.bt.run_strategy(
+            strategy=strategy,
+            exchange_id=request.exchange,
+            symbol=request.symbol,
+            timeframe=request.timeframe,
+            start_date=request.start_date,
+            end_date=request.end_date,
+            init_cash=request.init_cash,
+            fees=request.fees,
+            slippage=request.slippage,
+            sl_stop=request.sl_stop,
+            tp_stop=request.tp_stop,
+            sl_trail=request.sl_trail,
+            leverage=request.leverage,
+            **params
+        )
+        
+        # Extract data from portfolio
+        portfolio = result.portfolio
+        
+        # Build trade records
+        trades = self._build_trade_records(portfolio)
+        
+        # Build equity curve (trimmed to trading period)
+        equity_curve = self._build_equity_curve(portfolio)
+        
+        # Build metrics
+        metrics = self._build_metrics(result, portfolio)
+        
+        # Get date range from actual trading period (first trade to end)
+        idx = portfolio.wrapper.index
+        end_date = idx[-1].strftime("%Y-%m-%d %H:%M")
+        
+        # Use first trade time as start if trades exist
+        trades_df = portfolio.trades.records_readable
+        if not trades_df.empty:
+            first_entry_col = 'Entry Timestamp' if 'Entry Timestamp' in trades_df.columns else 'Entry Time'
+            if first_entry_col in trades_df.columns:
+                first_trade_time = pd.to_datetime(trades_df[first_entry_col].iloc[0])
+                start_date = first_trade_time.strftime("%Y-%m-%d %H:%M")
+            else:
+                start_date = idx[0].strftime("%Y-%m-%d %H:%M")
+        else:
+            start_date = idx[0].strftime("%Y-%m-%d %H:%M")
+        
+        return BacktestResult(
+            run_id=str(uuid.uuid4()),
+            strategy=request.strategy,
+            symbol=request.symbol,
+            market_type=result.market_type.value,
+            timeframe=request.timeframe,
+            start_date=start_date,
+            end_date=end_date,
+            leverage=result.leverage,
+            params=params,
+            metrics=metrics,
+            equity_curve=equity_curve,
+            trades=trades,
+            created_at=datetime.now(timezone.utc).isoformat(),
+        )
+    
+    def _build_equity_curve(self, portfolio) -> list[EquityPoint]:
+        """Extract equity curve with drawdown from portfolio, starting from first trade."""
+        value_series = portfolio.value()
+        drawdown_series = portfolio.drawdown()
+        
+        # Handle multi-column case (from grid search)
+        if hasattr(value_series, 'columns') and len(value_series.columns) > 1:
+            value_series = value_series.iloc[:, 0]
+            drawdown_series = drawdown_series.iloc[:, 0]
+        elif hasattr(value_series, 'columns'):
+            value_series = value_series.iloc[:, 0]
+            drawdown_series = drawdown_series.iloc[:, 0]
+        
+        # Find first trade time to trim equity curve
+        first_trade_idx = 0
+        trades_df = portfolio.trades.records_readable
+        if not trades_df.empty:
+            first_entry_col = 'Entry Timestamp' if 'Entry Timestamp' in trades_df.columns else 'Entry Time'
+            if first_entry_col in trades_df.columns:
+                first_trade_time = pd.to_datetime(trades_df[first_entry_col].iloc[0])
+                # Find index in value_series closest to first trade
+                if hasattr(value_series.index, 'get_indexer'):
+                    first_trade_idx = value_series.index.get_indexer([first_trade_time], method='nearest')[0]
+                    # Start a few bars before first trade for context
+                    first_trade_idx = max(0, first_trade_idx - 5)
+        
+        # Slice from first trade onwards
+        value_series = value_series.iloc[first_trade_idx:]
+        drawdown_series = drawdown_series.iloc[first_trade_idx:]
+        
+        points = []
+        for i, (ts, val) in enumerate(value_series.items()):
+            dd = drawdown_series.iloc[i] if i < len(drawdown_series) else 0.0
+            points.append(EquityPoint(
+                timestamp=ts.isoformat(),
+                value=float(val),
+                drawdown=float(dd) * 100,  # Convert to percentage
+            ))
+        
+        return points
+    
+    def _build_trade_records(self, portfolio) -> list[TradeRecord]:
+        """Extract trade records from portfolio."""
+        trades_df = portfolio.trades.records_readable
+        
+        if trades_df.empty:
+            return []
+        
+        records = []
+        for _, row in trades_df.iterrows():
+            # Handle different column names in vectorbt
+            entry_time = row.get('Entry Timestamp', row.get('Entry Time', ''))
+            exit_time = row.get('Exit Timestamp', row.get('Exit Time', ''))
+            
+            records.append(TradeRecord(
+                entry_time=str(entry_time) if pd.notna(entry_time) else "",
+                exit_time=str(exit_time) if pd.notna(exit_time) else None,
+                entry_price=float(row.get('Avg Entry Price', row.get('Entry Price', 0))),
+                exit_price=float(row.get('Avg Exit Price', row.get('Exit Price', 0))) 
+                    if pd.notna(row.get('Avg Exit Price', row.get('Exit Price'))) else None,
+                size=float(row.get('Size', 0)),
+                direction=str(row.get('Direction', 'Long')),
+                pnl=float(row.get('PnL', 0)) if pd.notna(row.get('PnL')) else None,
+                return_pct=float(row.get('Return', 0)) * 100 
+                    if pd.notna(row.get('Return')) else None,
+                status="closed" if pd.notna(exit_time) else "open",
+            ))
+        
+        return records
+    
+    def _build_metrics(self, result, portfolio) -> BacktestMetrics:
+        """Build metrics from backtest result."""
+        stats = portfolio.stats()
+        
+        # Extract values, handling potential multi-column results
+        def get_stat(key: str, default: float = 0.0) -> float:
+            val = stats.get(key, default)
+            if hasattr(val, 'mean'):
+                return float(val.mean())
+            return float(val) if pd.notna(val) else default
+        
+        total_return = portfolio.total_return()
+        if hasattr(total_return, 'mean'):
+            total_return = total_return.mean()
+        
+        # Calculate benchmark return from first trade to end (not full period)
+        # This gives accurate comparison when strategy has training period
+        close = portfolio.close
+        benchmark_return = 0.0
+        
+        if hasattr(close, 'iloc'):
+            # Find first trade entry time
+            trades_df = portfolio.trades.records_readable
+            if not trades_df.empty:
+                # Get the first trade entry timestamp
+                first_entry_col = 'Entry Timestamp' if 'Entry Timestamp' in trades_df.columns else 'Entry Time'
+                if first_entry_col in trades_df.columns:
+                    first_trade_time = pd.to_datetime(trades_df[first_entry_col].iloc[0])
+                    
+                    # Find the price at first trade
+                    if hasattr(close.index, 'get_indexer'):
+                        # Find closest index to first trade time
+                        idx = close.index.get_indexer([first_trade_time], method='nearest')[0]
+                        start_price = close.iloc[idx]
+                    else:
+                        start_price = close.iloc[0]
+                    
+                    end_price = close.iloc[-1]
+                    
+                    if hasattr(start_price, 'mean'):
+                        start_price = start_price.mean()
+                    if hasattr(end_price, 'mean'):
+                        end_price = end_price.mean()
+                    
+                    benchmark_return = ((end_price - start_price) / start_price)
+            else:
+                # No trades - use full period
+                start_price = close.iloc[0]
+                end_price = close.iloc[-1]
+                if hasattr(start_price, 'mean'):
+                    start_price = start_price.mean()
+                if hasattr(end_price, 'mean'):
+                    end_price = end_price.mean()
+                benchmark_return = ((end_price - start_price) / start_price)
+        
+        # Alpha = strategy return - benchmark return
+        alpha = float(total_return) - float(benchmark_return)
+        
+        sharpe = portfolio.sharpe_ratio()
+        if hasattr(sharpe, 'mean'):
+            sharpe = sharpe.mean()
+        
+        max_dd = portfolio.max_drawdown()
+        if hasattr(max_dd, 'mean'):
+            max_dd = max_dd.mean()
+        
+        win_rate = portfolio.trades.win_rate()
+        if hasattr(win_rate, 'mean'):
+            win_rate = win_rate.mean()
+        
+        trade_count = portfolio.trades.count()
+        if hasattr(trade_count, 'mean'):
+            trade_count = int(trade_count.mean())
+        else:
+            trade_count = int(trade_count)
+        
+        return BacktestMetrics(
+            total_return=float(total_return) * 100,
+            benchmark_return=float(benchmark_return) * 100,
+            alpha=float(alpha) * 100,
+            sharpe_ratio=float(sharpe) if pd.notna(sharpe) else 0.0,
+            max_drawdown=float(max_dd) * 100,
+            win_rate=float(win_rate) * 100 if pd.notna(win_rate) else 0.0,
+            total_trades=trade_count,
+            profit_factor=get_stat('Profit Factor'),
+            avg_trade_return=get_stat('Avg Winning Trade [%]'),
+            total_fees=get_stat('Total Fees Paid'),
+            total_funding=result.total_funding_paid,
+            liquidation_count=result.liquidation_count,
+            liquidation_loss=result.total_liquidation_loss,
+            adjusted_return=result.adjusted_return,
+        )
+
+
+# Singleton instance
+_runner: BacktestRunner | None = None
+
+
+def get_runner() -> BacktestRunner:
+    """Get or create the backtest runner instance."""
+    global _runner
+    if _runner is None:
+        _runner = BacktestRunner()
+    return _runner

api/services/storage.py

@@ -0,0 +1,225 @@
+"""
+Storage service for persisting and retrieving backtest runs.
+"""
+from sqlalchemy.orm import Session
+
+from api.models.database import BacktestRun
+from api.models.schemas import (
+    BacktestResult,
+    BacktestSummary,
+    EquityPoint,
+    BacktestMetrics,
+    TradeRecord,
+)
+
+
+class StorageService:
+    """
+    Service for saving and loading backtest runs from SQLite.
+    """
+    
+    def save_run(self, db: Session, result: BacktestResult) -> BacktestRun:
+        """
+        Persist a backtest result to the database.
+        
+        Args:
+            db: Database session
+            result: BacktestResult to save
+            
+        Returns:
+            Created BacktestRun record
+        """
+        run = BacktestRun(
+            run_id=result.run_id,
+            strategy=result.strategy,
+            symbol=result.symbol,
+            market_type=result.market_type,
+            timeframe=result.timeframe,
+            leverage=result.leverage,
+            params=result.params,
+            start_date=result.start_date,
+            end_date=result.end_date,
+            total_return=result.metrics.total_return,
+            benchmark_return=result.metrics.benchmark_return,
+            alpha=result.metrics.alpha,
+            sharpe_ratio=result.metrics.sharpe_ratio,
+            max_drawdown=result.metrics.max_drawdown,
+            win_rate=result.metrics.win_rate,
+            total_trades=result.metrics.total_trades,
+            profit_factor=result.metrics.profit_factor,
+            total_fees=result.metrics.total_fees,
+            total_funding=result.metrics.total_funding,
+            liquidation_count=result.metrics.liquidation_count,
+            liquidation_loss=result.metrics.liquidation_loss,
+            adjusted_return=result.metrics.adjusted_return,
+        )
+        
+        # Serialize complex data
+        run.set_equity_curve([p.model_dump() for p in result.equity_curve])
+        run.set_trades([t.model_dump() for t in result.trades])
+        
+        db.add(run)
+        db.commit()
+        db.refresh(run)
+        
+        return run
+    
+    def get_run(self, db: Session, run_id: str) -> BacktestResult | None:
+        """
+        Retrieve a backtest run by ID.
+        
+        Args:
+            db: Database session
+            run_id: UUID of the run
+            
+        Returns:
+            BacktestResult or None if not found
+        """
+        run = db.query(BacktestRun).filter(BacktestRun.run_id == run_id).first()
+        
+        if not run:
+            return None
+        
+        return self._to_result(run)
+    
+    def list_runs(
+        self, 
+        db: Session, 
+        limit: int = 50, 
+        offset: int = 0,
+        strategy: str | None = None,
+        symbol: str | None = None,
+    ) -> tuple[list[BacktestSummary], int]:
+        """
+        List backtest runs with optional filtering.
+        
+        Args:
+            db: Database session
+            limit: Maximum number of runs to return
+            offset: Offset for pagination
+            strategy: Filter by strategy name
+            symbol: Filter by symbol
+            
+        Returns:
+            Tuple of (list of summaries, total count)
+        """
+        query = db.query(BacktestRun)
+        
+        if strategy:
+            query = query.filter(BacktestRun.strategy == strategy)
+        if symbol:
+            query = query.filter(BacktestRun.symbol == symbol)
+        
+        total = query.count()
+        
+        runs = query.order_by(BacktestRun.created_at.desc()).offset(offset).limit(limit).all()
+        
+        summaries = [self._to_summary(run) for run in runs]
+        
+        return summaries, total
+    
+    def get_runs_by_ids(self, db: Session, run_ids: list[str]) -> list[BacktestResult]:
+        """
+        Retrieve multiple runs by their IDs.
+        
+        Args:
+            db: Database session
+            run_ids: List of run UUIDs
+            
+        Returns:
+            List of BacktestResults (preserves order)
+        """
+        runs = db.query(BacktestRun).filter(BacktestRun.run_id.in_(run_ids)).all()
+        
+        # Create lookup and preserve order
+        run_map = {run.run_id: run for run in runs}
+        results = []
+        
+        for run_id in run_ids:
+            if run_id in run_map:
+                results.append(self._to_result(run_map[run_id]))
+        
+        return results
+    
+    def delete_run(self, db: Session, run_id: str) -> bool:
+        """
+        Delete a backtest run.
+        
+        Args:
+            db: Database session
+            run_id: UUID of the run to delete
+            
+        Returns:
+            True if deleted, False if not found
+        """
+        run = db.query(BacktestRun).filter(BacktestRun.run_id == run_id).first()
+        
+        if not run:
+            return False
+        
+        db.delete(run)
+        db.commit()
+        return True
+    
+    def _to_result(self, run: BacktestRun) -> BacktestResult:
+        """Convert database record to BacktestResult schema."""
+        equity_data = run.get_equity_curve()
+        trades_data = run.get_trades()
+        
+        return BacktestResult(
+            run_id=run.run_id,
+            strategy=run.strategy,
+            symbol=run.symbol,
+            market_type=run.market_type,
+            timeframe=run.timeframe,
+            start_date=run.start_date or "",
+            end_date=run.end_date or "",
+            leverage=run.leverage,
+            params=run.params or {},
+            metrics=BacktestMetrics(
+                total_return=run.total_return,
+                benchmark_return=run.benchmark_return or 0.0,
+                alpha=run.alpha or 0.0,
+                sharpe_ratio=run.sharpe_ratio,
+                max_drawdown=run.max_drawdown,
+                win_rate=run.win_rate,
+                total_trades=run.total_trades,
+                profit_factor=run.profit_factor,
+                total_fees=run.total_fees,
+                total_funding=run.total_funding,
+                liquidation_count=run.liquidation_count,
+                liquidation_loss=run.liquidation_loss,
+                adjusted_return=run.adjusted_return,
+            ),
+            equity_curve=[EquityPoint(**p) for p in equity_data],
+            trades=[TradeRecord(**t) for t in trades_data],
+            created_at=run.created_at.isoformat() if run.created_at else "",
+        )
+    
+    def _to_summary(self, run: BacktestRun) -> BacktestSummary:
+        """Convert database record to BacktestSummary schema."""
+        return BacktestSummary(
+            run_id=run.run_id,
+            strategy=run.strategy,
+            symbol=run.symbol,
+            market_type=run.market_type,
+            timeframe=run.timeframe,
+            total_return=run.total_return,
+            sharpe_ratio=run.sharpe_ratio,
+            max_drawdown=run.max_drawdown,
+            total_trades=run.total_trades,
+            created_at=run.created_at.isoformat() if run.created_at else "",
+            params=run.params or {},
+        )
+
+
+# Singleton instance
+_storage: StorageService | None = None
+
+
+def get_storage() -> StorageService:
+    """Get or create the storage service instance."""
+    global _storage
+    if _storage is None:
+        _storage = StorageService()
+    return _storage

check_demo_account.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+"""
+Check OKX demo account positions and recent orders.
+
+Usage:
+    uv run python check_demo_account.py
+"""
+import sys
+from pathlib import Path
+from datetime import datetime, timezone
+
+sys.path.insert(0, str(Path(__file__).parent))
+
+from live_trading.config import OKXConfig
+import ccxt
+
+
+def main():
+    """Check demo account status."""
+    config = OKXConfig()
+    
+    print(f"\n{'='*60}")
+    print(f"  OKX Demo Account Check")
+    print(f"{'='*60}")
+    print(f"  Demo Mode: {config.demo_mode}")
+    print(f"  API Key:   {config.api_key[:8]}..." if config.api_key else "  API Key: NOT SET")
+    print(f"{'='*60}\n")
+    
+    exchange = ccxt.okx({
+        'apiKey': config.api_key,
+        'secret': config.secret,
+        'password': config.password,
+        'sandbox': config.demo_mode,
+        'options': {'defaultType': 'swap'},
+        'enableRateLimit': True,
+    })
+    
+    # Check balance
+    print("--- BALANCE ---")
+    balance = exchange.fetch_balance()
+    usdt = balance.get('USDT', {})
+    print(f"USDT Total: {usdt.get('total', 0):.2f}")
+    print(f"USDT Free:  {usdt.get('free', 0):.2f}")
+    print(f"USDT Used:  {usdt.get('used', 0):.2f}")
+    
+    # Check all balances
+    print("\n--- ALL NON-ZERO BALANCES ---")
+    for currency, data in balance.items():
+        if isinstance(data, dict) and data.get('total', 0) > 0:
+            print(f"{currency}: total={data.get('total', 0):.6f}, free={data.get('free', 0):.6f}")
+    
+    # Check open positions
+    print("\n--- OPEN POSITIONS ---")
+    positions = exchange.fetch_positions()
+    open_positions = [p for p in positions if abs(float(p.get('contracts', 0))) > 0]
+    
+    if open_positions:
+        for pos in open_positions:
+            print(f"  {pos['symbol']}: {pos['side']} {pos['contracts']} contracts @ {pos.get('entryPrice', 'N/A')}")
+            print(f"    Unrealized PnL: {pos.get('unrealizedPnl', 'N/A')}")
+    else:
+        print("  No open positions")
+    
+    # Check recent orders (last 50)
+    print("\n--- RECENT ORDERS (last 24h) ---")
+    try:
+        # Fetch closed orders for AVAX
+        orders = exchange.fetch_orders('AVAX/USDT:USDT', limit=20)
+        if orders:
+            for order in orders[-10:]:  # Last 10
+                ts = datetime.fromtimestamp(order['timestamp']/1000, tz=timezone.utc)
+                print(f"  [{ts.strftime('%H:%M:%S')}] {order['side'].upper()} {order['amount']} AVAX @ {order.get('average', order.get('price', 'market'))}")
+                print(f"    Status: {order['status']}, Filled: {order.get('filled', 0)}, ID: {order['id']}")
+        else:
+            print("  No recent AVAX orders")
+    except Exception as e:
+        print(f"  Could not fetch orders: {e}")
+    
+    # Check order history more broadly
+    print("\n--- ORDER HISTORY (AVAX) ---")
+    try:
+        # Try fetching my trades
+        trades = exchange.fetch_my_trades('AVAX/USDT:USDT', limit=10)
+        if trades:
+            for trade in trades[-5:]:
+                ts = datetime.fromtimestamp(trade['timestamp']/1000, tz=timezone.utc)
+                print(f"  [{ts.strftime('%Y-%m-%d %H:%M:%S')}] {trade['side'].upper()} {trade['amount']} @ {trade['price']}")
+                print(f"    Fee: {trade.get('fee', {}).get('cost', 'N/A')} {trade.get('fee', {}).get('currency', '')}")
+        else:
+            print("  No recent AVAX trades")
+    except Exception as e:
+        print(f"  Could not fetch trades: {e}")
+    
+    print(f"\n{'='*60}\n")
+
+
+if __name__ == "__main__":
+    main()

check_symbols.py

@@ -0,0 +1,28 @@
+import ccxt
+import sys
+
+def main():
+    try:
+        exchange = ccxt.okx()
+        print("Loading markets...")
+        markets = exchange.load_markets()
+        
+        # Filter for ETH perpetuals
+        eth_perps = [
+            symbol for symbol, market in markets.items() 
+            if 'ETH' in symbol and 'USDT' in symbol and market.get('swap') and market.get('linear')
+        ]
+        
+        print(f"\nFound {len(eth_perps)} ETH Linear Perps:")
+        for symbol in eth_perps:
+            market = markets[symbol]
+            print(f"  CCXT Symbol: {symbol}")
+            print(f"  Exchange ID: {market['id']}")
+            print(f"  Type: {market['type']}")
+            print("-" * 30)
+            
+    except Exception as e:
+        print(f"Error: {e}")
+
+if __name__ == "__main__":
+    main()

engine/backtester.py

@@ -132,9 +132,22 @@ class Backtester:
             **strategy_params
         )
         
-        # Normalize signals to 4-tuple format
+        # Normalize signals to 5-tuple format
         signals = self._normalize_signals(signals, close_price, market_config)
-        long_entries, long_exits, short_entries, short_exits = signals
+        long_entries, long_exits, short_entries, short_exits, size = signals
+        
+        # Default size if None
+        if size is None:
+            size = 1.0
+            
+        # Convert leverage multiplier to raw value (USD) for vbt
+        # This works around "SizeType.Percent reversal" error
+        # Effectively "Fixed Fractional" sizing based on Initial Capital
+        # (Does not compound, but safe for backtesting)
+        if isinstance(size, pd.Series):
+            size = size * init_cash
+        else:
+            size = size * init_cash
         
         # Process liquidations - inject forced exits at liquidation points
         liquidation_events: list[LiquidationEvent] = []
@@ -164,7 +177,8 @@ class Backtester:
             long_entries, long_exits,
             short_entries, short_exits,
             init_cash, effective_fees, slippage, timeframe,
-            sl_stop, tp_stop, sl_trail, effective_leverage
+            sl_stop, tp_stop, sl_trail, effective_leverage,
+            size=size
         )
         
         # Calculate adjusted returns accounting for liquidation losses
@@ -242,18 +256,28 @@ class Backtester:
         market_config
     ) -> tuple:
         """
-        Normalize strategy signals to 4-tuple format.
+        Normalize strategy signals to 5-tuple format.
         
-        Handles backward compatibility with 2-tuple (long-only) returns.
+        Returns:
+            (long_entries, long_exits, short_entries, short_exits, size)
         """
+        # Default size is None (will be treated as 1.0 or default later)
+        size = None
+        
         if len(signals) == 2:
             long_entries, long_exits = signals
             short_entries = BaseStrategy.create_empty_signals(long_entries)
             short_exits = BaseStrategy.create_empty_signals(long_entries)
-            return long_entries, long_exits, short_entries, short_exits
+            return long_entries, long_exits, short_entries, short_exits, size
         
         if len(signals) == 4:
             long_entries, long_exits, short_entries, short_exits = signals
+        elif len(signals) == 5:
+            long_entries, long_exits, short_entries, short_exits, size = signals
+        else:
+            raise ValueError(
+                f"Strategy must return 2, 4, or 5 signal arrays, got {len(signals)}"
+            )
             
         # Warn and clear short signals on spot markets
         if not market_config.supports_short:
@@ -270,11 +294,7 @@ class Backtester:
                 short_entries = BaseStrategy.create_empty_signals(long_entries)
                 short_exits = BaseStrategy.create_empty_signals(long_entries)
                 
-            return long_entries, long_exits, short_entries, short_exits
+        return long_entries, long_exits, short_entries, short_exits, size
-        
-        raise ValueError(
-            f"Strategy must return 2 or 4 signal arrays, got {len(signals)}"
-        )
     
     def _run_portfolio(
         self,
@@ -289,7 +309,8 @@ class Backtester:
         sl_stop: float | None,
         tp_stop: float | None,
         sl_trail: bool,
-        leverage: int
+        leverage: int,
+        size: pd.Series | float = 1.0
     ) -> vbt.Portfolio:
         """Select and run appropriate portfolio simulation."""
         has_shorts = (
@@ -304,14 +325,18 @@ class Backtester:
                 long_entries, long_exits,
                 short_entries, short_exits,
                 init_cash, fees, slippage, freq,
-                sl_stop, tp_stop, sl_trail, leverage
+                sl_stop, tp_stop, sl_trail, leverage,
+                size=size
             )
         
         return run_long_only_portfolio(
             close,
             long_entries, long_exits,
             init_cash, fees, slippage, freq,
-            sl_stop, tp_stop, sl_trail, leverage
+            sl_stop, tp_stop, sl_trail, leverage,
+            # Long-only doesn't support variable size in current implementation
+            # without modification, but we can add it if needed.
+            # For now, only regime strategy uses it, which is Long/Short.
         )
     
     def run_wfa(

engine/cryptoquant.py

@@ -133,12 +133,57 @@ class CryptoQuantClient:
                 
         return combined_df
 
+    def fetch_history_chunked(
+        self, 
+        symbols: list[str], 
+        metrics: dict, 
+        start_date: str, 
+        end_date: str, 
+        chunk_months: int = 3
+    ) -> pd.DataFrame:
+        """
+        Fetch historical data in chunks to avoid API limits.
+        """
+        start_dt = datetime.strptime(start_date, "%Y%m%d")
+        end_dt = datetime.strptime(end_date, "%Y%m%d")
+        
+        all_data = []
+        
+        current = start_dt
+        while current < end_dt:
+            next_chunk = current + timedelta(days=chunk_months * 30)
+            if next_chunk > end_dt:
+                next_chunk = end_dt
+            
+            s_str = current.strftime("%Y%m%d")
+            e_str = next_chunk.strftime("%Y%m%d")
+            
+            logger.info(f"Processing chunk: {s_str} to {e_str}")
+            chunk_df = self.fetch_multi_metrics(symbols, metrics, s_str, e_str)
+            
+            if not chunk_df.empty:
+                all_data.append(chunk_df)
+            
+            current = next_chunk + timedelta(days=1)
+            time.sleep(1) # Be nice to API
+            
+        if not all_data:
+            return pd.DataFrame()
+            
+        # Combine all chunks
+        full_df = pd.concat(all_data)
+        # Remove duplicates if any overlap
+        full_df = full_df[~full_df.index.duplicated(keep='first')]
+        full_df.sort_index(inplace=True)
+        
+        return full_df
+
 if __name__ == "__main__":
     cq = CryptoQuantClient()
     
-    # 3 Months Data (Oct 1 2025 - Dec 31 2025)
+    # 12 Months Data (Jan 1 2025 - Jan 14 2026)
-    start = "20251001"
+    start = "20250101"
-    end = "20251231"
+    end = "20260114"
     
     metrics = {
         "reserves": "exchange-flows/exchange-reserve",
@@ -147,7 +192,7 @@ if __name__ == "__main__":
     }
     
     print(f"Fetching training data from {start} to {end}...")
-    df = cq.fetch_multi_metrics(["btc", "eth"], metrics, start, end)
+    df = cq.fetch_history_chunked(["btc", "eth"], metrics, start, end)
     
     output_file = "data/cq_training_data.csv"
     os.makedirs("data", exist_ok=True)

engine/market.py

@@ -94,8 +94,20 @@ def get_ccxt_symbol(symbol: str, market_type: MarketType) -> str:
     """
     if market_type == MarketType.PERPETUAL:
         # OKX perpetual format: BTC/USDT:USDT
-        quote = symbol.split('/')[1] if '/' in symbol else 'USDT'
+        if '/' in symbol:
+            base, quote = symbol.split('/')
             return f"{symbol}:{quote}"
+        elif '-' in symbol:
+            base, quote = symbol.split('-')
+            return f"{base}/{quote}:{quote}"
+        else:
+            # Assume base is symbol, quote is USDT default
+            return f"{symbol}/USDT:USDT"
+            
+    # For spot, normalize dash to slash for CCXT
+    if '-' in symbol:
+        return symbol.replace('-', '/')
+        
     return symbol
 
 

engine/portfolio.py

@@ -74,75 +74,35 @@ def run_long_short_portfolio(
     sl_stop: float | None,
     tp_stop: float | None,
     sl_trail: bool,
-    leverage: int
+    leverage: int,
+    size: pd.Series | float = 1.0,
+    size_type: str = 'value'  # Changed to 'value' to support reversals/sizing
 ) -> vbt.Portfolio:
     """
     Run a portfolio supporting both long and short positions.
     
-    Runs two separate portfolios (long and short) and combines results.
+    Uses VectorBT's native support for short_entries/short_exits
-    Each gets half the capital.
+    to simulate a single unified portfolio.
-    
-    Args:
-        close: Close price series
-        long_entries: Long entry signals
-        long_exits: Long exit signals
-        short_entries: Short entry signals
-        short_exits: Short exit signals
-        init_cash: Initial capital
-        fees: Transaction fee percentage
-        slippage: Slippage percentage
-        freq: Data frequency string
-        sl_stop: Stop loss percentage
-        tp_stop: Take profit percentage
-        sl_trail: Enable trailing stop loss
-        leverage: Leverage multiplier
-        
-    Returns:
-        VectorBT Portfolio object (long portfolio, short stats logged)
     """
     effective_cash = init_cash * leverage
-    half_cash = effective_cash / 2
     
-    # Run long-only portfolio
+    # If size is passed as value (USD), we don't scale it by leverage here
-    long_pf = vbt.Portfolio.from_signals(
+    # The backtester has already scaled it by init_cash.
+    # If using 'value', vbt treats it as "Amount of CASH to use for the trade"
+    
+    return vbt.Portfolio.from_signals(
         close=close,
         entries=long_entries,
         exits=long_exits,
-        direction='longonly',
+        short_entries=short_entries,
-        init_cash=half_cash,
+        short_exits=short_exits,
+        init_cash=effective_cash,
         fees=fees,
         slippage=slippage,
         freq=freq,
         sl_stop=sl_stop,
         tp_stop=tp_stop,
         sl_trail=sl_trail,
-        size=1.0,
+        size=size,
-        size_type='percent',
+        size_type=size_type,
     )
-    
-    # Run short-only portfolio
-    short_pf = vbt.Portfolio.from_signals(
-        close=close,
-        entries=short_entries,
-        exits=short_exits,
-        direction='shortonly',
-        init_cash=half_cash,
-        fees=fees,
-        slippage=slippage,
-        freq=freq,
-        sl_stop=sl_stop,
-        tp_stop=tp_stop,
-        sl_trail=sl_trail,
-        size=1.0,
-        size_type='percent',
-    )
-    
-    # Log both portfolio stats
-    # TODO: Implement proper portfolio combination
-    logger.info(
-        "Long portfolio: %.2f%% return, Short portfolio: %.2f%% return",
-        long_pf.total_return().mean() * 100,
-        short_pf.total_return().mean() * 100
-    )
-    
-    return long_pf

frontend/.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

frontend/.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["Vue.volar"]
+}

frontend/README.md

@@ -0,0 +1,5 @@
+# Vue 3 + TypeScript + Vite
+
+This template should help get you started developing with Vue 3 and TypeScript in Vite. The template uses Vue 3 `<script setup>` SFCs, check out the [script setup docs](https://v3.vuejs.org/api/sfc-script-setup.html#sfc-script-setup) to learn more.
+
+Learn more about the recommended Project Setup and IDE Support in the [Vue Docs TypeScript Guide](https://vuejs.org/guide/typescript/overview.html#project-setup).

frontend/index.html

@@ -0,0 +1,24 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Lowkey Backtest</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
+    <style>
+      body {
+        font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
+      }
+      code, pre, .font-mono, input, select {
+        font-family: 'JetBrains Mono', 'Fira Code', monospace;
+      }
+    </style>
+  </head>
+  <body>
+    <div id="app"></div>
+    <script type="module" src="/src/main.ts"></script>
+  </body>
+</html>

frontend/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vue-tsc -b && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "axios": "^1.13.2",
+    "plotly.js-dist-min": "^3.3.1",
+    "vue": "^3.5.24",
+    "vue-router": "^4.6.4"
+  },
+  "devDependencies": {
+    "@tailwindcss/vite": "^4.1.18",
+    "@types/node": "^24.10.1",
+    "@vitejs/plugin-vue": "^6.0.1",
+    "@vue/tsconfig": "^0.8.1",
+    "tailwindcss": "^4.1.18",
+    "typescript": "~5.9.3",
+    "vite": "^7.2.4",
+    "vue-tsc": "^3.1.4"
+  }
+}

frontend/public/vite.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>

frontend/src/App.vue

@@ -0,0 +1,72 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import { RouterLink, RouterView } from 'vue-router'
+import RunHistory from '@/components/RunHistory.vue'
+
+const historyOpen = ref(true)
+</script>
+
+<template>
+  <div class="flex h-screen overflow-hidden">
+    <!-- Sidebar Navigation -->
+    <aside class="w-16 bg-bg-secondary border-r border-border flex flex-col items-center py-4 gap-4">
+      <!-- Logo -->
+      <div class="w-10 h-10 rounded-lg bg-accent-blue flex items-center justify-center text-black font-bold text-lg">
+        LB
+      </div>
+      
+      <!-- Nav Links -->
+      <nav class="flex flex-col gap-2 mt-4">
+        <RouterLink 
+          to="/" 
+          class="w-10 h-10 rounded-lg flex items-center justify-center hover:bg-bg-hover transition-colors"
+          :class="{ 'bg-bg-tertiary': $route.path === '/' }"
+          title="Dashboard"
+        >
+          <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
+          </svg>
+        </RouterLink>
+        
+        <RouterLink 
+          to="/compare" 
+          class="w-10 h-10 rounded-lg flex items-center justify-center hover:bg-bg-hover transition-colors"
+          :class="{ 'bg-bg-tertiary': $route.path === '/compare' }"
+          title="Compare Runs"
+        >
+          <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 17V7m0 10a2 2 0 01-2 2H5a2 2 0 01-2-2V7a2 2 0 012-2h2a2 2 0 012 2m0 10a2 2 0 002 2h2a2 2 0 002-2M9 7a2 2 0 012-2h2a2 2 0 012 2m0 10V7m0 10a2 2 0 002 2h2a2 2 0 002-2V7a2 2 0 00-2-2h-2a2 2 0 00-2 2" />
+          </svg>
+        </RouterLink>
+      </nav>
+      
+      <!-- Spacer -->
+      <div class="flex-1"></div>
+      
+      <!-- Toggle History -->
+      <button 
+        @click="historyOpen = !historyOpen"
+        class="w-10 h-10 rounded-lg flex items-center justify-center hover:bg-bg-hover transition-colors"
+        :class="{ 'bg-bg-tertiary': historyOpen }"
+        title="Toggle Run History"
+      >
+        <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z" />
+        </svg>
+      </button>
+    </aside>
+    
+    <!-- Main Content -->
+    <main class="flex-1 overflow-auto">
+      <RouterView />
+    </main>
+    
+    <!-- Run History Sidebar -->
+    <aside 
+      v-if="historyOpen"
+      class="w-72 bg-bg-secondary border-l border-border overflow-hidden flex flex-col"
+    >
+      <RunHistory />
+    </aside>
+  </div>
+</template>

frontend/src/api/client.ts

@@ -0,0 +1,81 @@
+/**
+ * API client for Lowkey Backtest backend.
+ */
+import axios from 'axios'
+import type {
+  StrategiesResponse,
+  DataStatusResponse,
+  BacktestRequest,
+  BacktestResult,
+  BacktestListResponse,
+  CompareResult,
+} from './types'
+
+const api = axios.create({
+  baseURL: '/api',
+  headers: {
+    'Content-Type': 'application/json',
+  },
+})
+
+/**
+ * Get list of available strategies with parameters.
+ */
+export async function getStrategies(): Promise<StrategiesResponse> {
+  const response = await api.get<StrategiesResponse>('/strategies')
+  return response.data
+}
+
+/**
+ * Get list of available symbols with data status.
+ */
+export async function getSymbols(): Promise<DataStatusResponse> {
+  const response = await api.get<DataStatusResponse>('/symbols')
+  return response.data
+}
+
+/**
+ * Run a backtest with the given configuration.
+ */
+export async function runBacktest(request: BacktestRequest): Promise<BacktestResult> {
+  const response = await api.post<BacktestResult>('/backtest', request)
+  return response.data
+}
+
+/**
+ * Get list of saved backtest runs.
+ */
+export async function getBacktests(params?: {
+  limit?: number
+  offset?: number
+  strategy?: string
+  symbol?: string
+}): Promise<BacktestListResponse> {
+  const response = await api.get<BacktestListResponse>('/backtests', { params })
+  return response.data
+}
+
+/**
+ * Get a specific backtest run by ID.
+ */
+export async function getBacktest(runId: string): Promise<BacktestResult> {
+  const response = await api.get<BacktestResult>(`/backtest/${runId}`)
+  return response.data
+}
+
+/**
+ * Delete a backtest run.
+ */
+export async function deleteBacktest(runId: string): Promise<void> {
+  await api.delete(`/backtest/${runId}`)
+}
+
+/**
+ * Compare multiple backtest runs.
+ */
+export async function compareRuns(runIds: string[]): Promise<CompareResult> {
+  const response = await api.post<CompareResult>('/compare', { run_ids: runIds })
+  return response.data
+}
+
+export default api

frontend/src/api/types.ts

@@ -0,0 +1,131 @@
+/**
+ * TypeScript types matching the FastAPI Pydantic schemas.
+ */
+
+// Strategy types
+export interface StrategyInfo {
+  name: string
+  display_name: string
+  market_type: string
+  default_leverage: number
+  default_params: Record<string, unknown>
+  grid_params: Record<string, unknown>
+}
+
+export interface StrategiesResponse {
+  strategies: StrategyInfo[]
+}
+
+// Symbol/Data types
+export interface SymbolInfo {
+  symbol: string
+  exchange: string
+  market_type: string
+  timeframes: string[]
+  start_date: string | null
+  end_date: string | null
+  row_count: number
+}
+
+export interface DataStatusResponse {
+  symbols: SymbolInfo[]
+}
+
+// Backtest types
+export interface BacktestRequest {
+  strategy: string
+  symbol: string
+  exchange?: string
+  timeframe?: string
+  market_type?: string
+  start_date?: string | null
+  end_date?: string | null
+  init_cash?: number
+  leverage?: number | null
+  fees?: number | null
+  slippage?: number
+  sl_stop?: number | null
+  tp_stop?: number | null
+  sl_trail?: boolean
+  params?: Record<string, unknown>
+}
+
+export interface TradeRecord {
+  entry_time: string
+  exit_time: string | null
+  entry_price: number
+  exit_price: number | null
+  size: number
+  direction: string
+  pnl: number | null
+  return_pct: number | null
+  status: string
+}
+
+export interface EquityPoint {
+  timestamp: string
+  value: number
+  drawdown: number
+}
+
+export interface BacktestMetrics {
+  total_return: number
+  benchmark_return: number
+  alpha: number
+  sharpe_ratio: number
+  max_drawdown: number
+  win_rate: number
+  total_trades: number
+  profit_factor: number | null
+  avg_trade_return: number | null
+  total_fees: number
+  total_funding: number
+  liquidation_count: number
+  liquidation_loss: number
+  adjusted_return: number | null
+}
+
+export interface BacktestResult {
+  run_id: string
+  strategy: string
+  symbol: string
+  market_type: string
+  timeframe: string
+  start_date: string
+  end_date: string
+  leverage: number
+  params: Record<string, unknown>
+  metrics: BacktestMetrics
+  equity_curve: EquityPoint[]
+  trades: TradeRecord[]
+  created_at: string
+}
+
+export interface BacktestSummary {
+  run_id: string
+  strategy: string
+  symbol: string
+  market_type: string
+  timeframe: string
+  total_return: number
+  sharpe_ratio: number
+  max_drawdown: number
+  total_trades: number
+  created_at: string
+  params: Record<string, unknown>
+}
+
+export interface BacktestListResponse {
+  runs: BacktestSummary[]
+  total: number
+}
+
+// Comparison types
+export interface CompareRequest {
+  run_ids: string[]
+}
+
+export interface CompareResult {
+  runs: BacktestResult[]
+  param_diff: Record<string, unknown[]>
+}

frontend/src/assets/vue.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="37.07" height="36" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 198"><path fill="#41B883" d="M204.8 0H256L128 220.8L0 0h97.92L128 51.2L157.44 0h47.36Z"></path><path fill="#41B883" d="m0 0l128 220.8L256 0h-51.2L128 132.48L50.56 0H0Z"></path><path fill="#35495E" d="M50.56 0L128 133.12L204.8 0h-47.36L128 51.2L97.92 0H50.56Z"></path></svg>

frontend/src/components/BacktestConfig.vue

@@ -0,0 +1,186 @@
+<script setup lang="ts">
+import { ref, computed, watch, onMounted } from 'vue'
+import { useBacktest } from '@/composables/useBacktest'
+import type { BacktestRequest } from '@/api/types'
+
+const { strategies, symbols, loading, init, executeBacktest } = useBacktest()
+
+// Form state
+const selectedStrategy = ref('')
+const selectedSymbol = ref('')
+const selectedMarket = ref('perpetual')
+const timeframe = ref('1h')
+const initCash = ref(10000)
+const leverage = ref<number | null>(null)
+const slStop = ref<number | null>(null)
+const tpStop = ref<number | null>(null)
+const params = ref<Record<string, number | boolean>>({})
+
+// Initialize
+onMounted(async () => {
+  await init()
+  if (strategies.value.length > 0 && strategies.value[0]) {
+    selectedStrategy.value = strategies.value[0].name
+  }
+})
+
+// Get current strategy config
+const currentStrategy = computed(() => 
+  strategies.value.find(s => s.name === selectedStrategy.value)
+)
+
+// Filter symbols by market type
+const filteredSymbols = computed(() => 
+  symbols.value.filter(s => s.market_type === selectedMarket.value)
+)
+
+// Update params when strategy changes
+watch(selectedStrategy, (name) => {
+  const strategy = strategies.value.find(s => s.name === name)
+  if (strategy) {
+    params.value = { ...strategy.default_params } as Record<string, number | boolean>
+    selectedMarket.value = strategy.market_type
+    leverage.value = strategy.default_leverage > 1 ? strategy.default_leverage : null
+  }
+})
+
+// Update symbol when market changes
+watch([filteredSymbols, selectedMarket], () => {
+  const firstSymbol = filteredSymbols.value[0]
+  if (filteredSymbols.value.length > 0 && firstSymbol && !filteredSymbols.value.find(s => s.symbol === selectedSymbol.value)) {
+    selectedSymbol.value = firstSymbol.symbol
+  }
+})
+
+async function handleSubmit() {
+  if (!selectedStrategy.value || !selectedSymbol.value) return
+  
+  const request: BacktestRequest = {
+    strategy: selectedStrategy.value,
+    symbol: selectedSymbol.value,
+    market_type: selectedMarket.value,
+    timeframe: timeframe.value,
+    init_cash: initCash.value,
+    leverage: leverage.value,
+    sl_stop: slStop.value,
+    tp_stop: tpStop.value,
+    params: params.value,
+  }
+  
+  await executeBacktest(request)
+}
+
+function getParamType(value: unknown): 'number' | 'boolean' | 'unknown' {
+  if (typeof value === 'boolean') return 'boolean'
+  if (typeof value === 'number') return 'number'
+  return 'unknown'
+}
+</script>
+
+<template>
+  <div class="card">
+    <h2 class="text-lg font-semibold mb-4">Backtest Configuration</h2>
+    
+    <form @submit.prevent="handleSubmit" class="space-y-4">
+      <!-- Strategy -->
+      <div>
+        <label class="block text-xs text-text-secondary uppercase mb-1">Strategy</label>
+        <select v-model="selectedStrategy" class="w-full">
+          <option v-for="s in strategies" :key="s.name" :value="s.name">
+            {{ s.display_name }}
+          </option>
+        </select>
+      </div>
+      
+      <!-- Market Type & Symbol -->
+      <div class="grid grid-cols-2 gap-3">
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Market</label>
+          <select v-model="selectedMarket" class="w-full">
+            <option value="spot">Spot</option>
+            <option value="perpetual">Perpetual</option>
+          </select>
+        </div>
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Symbol</label>
+          <select v-model="selectedSymbol" class="w-full">
+            <option v-for="s in filteredSymbols" :key="s.symbol" :value="s.symbol">
+              {{ s.symbol }}
+            </option>
+          </select>
+        </div>
+      </div>
+      
+      <!-- Timeframe & Cash -->
+      <div class="grid grid-cols-2 gap-3">
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Timeframe</label>
+          <select v-model="timeframe" class="w-full">
+            <option value="1h">1 Hour</option>
+            <option value="4h">4 Hours</option>
+            <option value="1d">1 Day</option>
+          </select>
+        </div>
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Initial Cash</label>
+          <input type="number" v-model.number="initCash" class="w-full" min="100" step="100" />
+        </div>
+      </div>
+      
+      <!-- Leverage (perpetual only) -->
+      <div v-if="selectedMarket === 'perpetual'" class="grid grid-cols-3 gap-3">
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Leverage</label>
+          <input type="number" v-model.number="leverage" class="w-full" min="1" max="100" placeholder="1" />
+        </div>
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Stop Loss %</label>
+          <input type="number" v-model.number="slStop" class="w-full" min="0" max="100" step="0.1" placeholder="None" />
+        </div>
+        <div>
+          <label class="block text-xs text-text-secondary uppercase mb-1">Take Profit %</label>
+          <input type="number" v-model.number="tpStop" class="w-full" min="0" max="100" step="0.1" placeholder="None" />
+        </div>
+      </div>
+      
+      <!-- Strategy Parameters -->
+      <div v-if="currentStrategy && Object.keys(params).length > 0">
+        <h3 class="text-sm font-medium text-text-secondary mb-2">Strategy Parameters</h3>
+        <div class="grid grid-cols-2 gap-3">
+          <div v-for="(value, key) in params" :key="key">
+            <label class="block text-xs text-text-secondary uppercase mb-1">
+              {{ String(key).replace(/_/g, ' ') }}
+            </label>
+            <template v-if="getParamType(value) === 'boolean'">
+              <input 
+                type="checkbox" 
+                :checked="Boolean(value)"
+                @change="params[key] = ($event.target as HTMLInputElement).checked"
+                class="w-5 h-5"
+              />
+            </template>
+            <template v-else>
+              <input 
+                type="number" 
+                :value="value"
+                @input="params[key] = parseFloat(($event.target as HTMLInputElement).value)"
+                class="w-full" 
+                step="any"
+              />
+            </template>
+          </div>
+        </div>
+      </div>
+      
+      <!-- Submit -->
+      <button 
+        type="submit" 
+        class="btn btn-primary w-full"
+        :disabled="loading || !selectedStrategy || !selectedSymbol"
+      >
+        <span v-if="loading" class="spinner"></span>
+        <span v-else>Run Backtest</span>
+      </button>
+    </form>
+  </div>
+</template>

frontend/src/components/EquityCurve.vue

@@ -0,0 +1,88 @@
+<script setup lang="ts">
+import { ref, watch, onMounted, onUnmounted } from 'vue'
+import Plotly from 'plotly.js-dist-min'
+import type { EquityPoint } from '@/api/types'
+
+const props = defineProps<{
+  data: EquityPoint[]
+  title?: string
+}>()
+
+const chartRef = ref<HTMLDivElement | null>(null)
+
+const CHART_COLORS = {
+  equity: '#58a6ff',
+  grid: '#30363d',
+  text: '#8b949e',
+}
+
+function renderChart() {
+  if (!chartRef.value || props.data.length === 0) return
+  
+  const timestamps = props.data.map(p => p.timestamp)
+  const values = props.data.map(p => p.value)
+  
+  const traces: Plotly.Data[] = [
+    {
+      x: timestamps,
+      y: values,
+      type: 'scatter',
+      mode: 'lines',
+      name: 'Portfolio Value',
+      line: { color: CHART_COLORS.equity, width: 2 },
+      hovertemplate: '%{x}<br>Value: $%{y:,.2f}<extra></extra>',
+    },
+  ]
+  
+  const layout: Partial<Plotly.Layout> = {
+    title: props.title ? {
+      text: props.title,
+      font: { color: CHART_COLORS.text, size: 14 },
+    } : undefined,
+    paper_bgcolor: 'transparent',
+    plot_bgcolor: 'transparent',
+    margin: { l: 60, r: 20, t: props.title ? 40 : 20, b: 40 },
+    xaxis: {
+      showgrid: true,
+      gridcolor: CHART_COLORS.grid,
+      tickfont: { color: CHART_COLORS.text, size: 10 },
+      linecolor: CHART_COLORS.grid,
+    },
+    yaxis: {
+      showgrid: true,
+      gridcolor: CHART_COLORS.grid,
+      tickfont: { color: CHART_COLORS.text, size: 10 },
+      linecolor: CHART_COLORS.grid,
+      tickprefix: '$',
+      hoverformat: ',.2f',
+    },
+    showlegend: false,
+    hovermode: 'x unified',
+  }
+  
+  const config: Partial<Plotly.Config> = {
+    responsive: true,
+    displayModeBar: false,
+  }
+  
+  Plotly.react(chartRef.value, traces, layout, config)
+}
+
+watch(() => props.data, renderChart, { deep: true })
+
+onMounted(() => {
+  renderChart()
+  window.addEventListener('resize', renderChart)
+})
+
+onUnmounted(() => {
+  window.removeEventListener('resize', renderChart)
+  if (chartRef.value) {
+    Plotly.purge(chartRef.value)
+  }
+})
+</script>
+
+<template>
+  <div ref="chartRef" class="w-full h-full min-h-[300px]"></div>
+</template>

frontend/src/components/HelloWorld.vue

@@ -0,0 +1,41 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+
+defineProps<{ msg: string }>()
+
+const count = ref(0)
+</script>
+
+<template>
+  <h1>{{ msg }}</h1>
+
+  <div class="card">
+    <button type="button" @click="count++">count is {{ count }}</button>
+    <p>
+      Edit
+      <code>components/HelloWorld.vue</code> to test HMR
+    </p>
+  </div>
+
+  <p>
+    Check out
+    <a href="https://vuejs.org/guide/quick-start.html#local" target="_blank"
+      >create-vue</a
+    >, the official Vue + Vite starter
+  </p>
+  <p>
+    Learn more about IDE Support for Vue in the
+    <a
+      href="https://vuejs.org/guide/scaling-up/tooling.html#ide-support"
+      target="_blank"
+      >Vue Docs Scaling up Guide</a
+    >.
+  </p>
+  <p class="read-the-docs">Click on the Vite and Vue logos to learn more</p>
+</template>
+
+<style scoped>
+.read-the-docs {
+  color: #888;
+}
+</style>

frontend/src/components/MetricsPanel.vue

@@ -0,0 +1,144 @@
+<script setup lang="ts">
+import type { BacktestMetrics } from '@/api/types'
+
+const props = defineProps<{
+  metrics: BacktestMetrics
+  leverage?: number
+  marketType?: string
+}>()
+
+function formatPercent(val: number): string {
+  return (val >= 0 ? '+' : '') + val.toFixed(2) + '%'
+}
+
+function formatNumber(val: number | null | undefined, decimals = 2): string {
+  if (val === null || val === undefined) return '-'
+  return val.toFixed(decimals)
+}
+
+function formatCurrency(val: number): string {
+  return '$' + val.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+}
+</script>
+
+<template>
+  <div class="grid grid-cols-2 md:grid-cols-4 gap-4">
+    <!-- Total Return -->
+    <div class="card">
+      <div class="metric-label">Strategy Return</div>
+      <div 
+        class="metric-value"
+        :class="metrics.total_return >= 0 ? 'profit' : 'loss'"
+      >
+        {{ formatPercent(metrics.total_return) }}
+      </div>
+      <div v-if="metrics.adjusted_return !== null && metrics.adjusted_return !== metrics.total_return" class="text-xs text-text-muted mt-1">
+        Adj: {{ formatPercent(metrics.adjusted_return) }}
+      </div>
+    </div>
+    
+    <!-- Benchmark Return -->
+    <div class="card">
+      <div class="metric-label">Benchmark (B&H)</div>
+      <div 
+        class="metric-value"
+        :class="metrics.benchmark_return >= 0 ? 'profit' : 'loss'"
+      >
+        {{ formatPercent(metrics.benchmark_return) }}
+      </div>
+      <div class="text-xs text-text-muted mt-1">
+        Market change
+      </div>
+    </div>
+    
+    <!-- Alpha -->
+    <div class="card">
+      <div class="metric-label">Alpha</div>
+      <div 
+        class="metric-value"
+        :class="metrics.alpha >= 0 ? 'profit' : 'loss'"
+      >
+        {{ formatPercent(metrics.alpha) }}
+      </div>
+      <div class="text-xs text-text-muted mt-1">
+        vs Buy & Hold
+      </div>
+    </div>
+    
+    <!-- Sharpe Ratio -->
+    <div class="card">
+      <div class="metric-label">Sharpe Ratio</div>
+      <div 
+        class="metric-value"
+        :class="metrics.sharpe_ratio >= 1 ? 'profit' : metrics.sharpe_ratio < 0 ? 'loss' : ''"
+      >
+        {{ formatNumber(metrics.sharpe_ratio) }}
+      </div>
+    </div>
+    
+    <!-- Max Drawdown -->
+    <div class="card">
+      <div class="metric-label">Max Drawdown</div>
+      <div class="metric-value loss">
+        {{ formatPercent(metrics.max_drawdown) }}
+      </div>
+    </div>
+    
+    <!-- Win Rate -->
+    <div class="card">
+      <div class="metric-label">Win Rate</div>
+      <div 
+        class="metric-value"
+        :class="metrics.win_rate >= 50 ? 'profit' : 'loss'"
+      >
+        {{ formatNumber(metrics.win_rate, 1) }}%
+      </div>
+    </div>
+    
+    <!-- Total Trades -->
+    <div class="card">
+      <div class="metric-label">Total Trades</div>
+      <div class="metric-value">
+        {{ metrics.total_trades }}
+      </div>
+    </div>
+    
+    <!-- Profit Factor -->
+    <div class="card">
+      <div class="metric-label">Profit Factor</div>
+      <div 
+        class="metric-value"
+        :class="(metrics.profit_factor || 0) >= 1 ? 'profit' : 'loss'"
+      >
+        {{ formatNumber(metrics.profit_factor) }}
+      </div>
+    </div>
+    
+    <!-- Total Fees -->
+    <div class="card">
+      <div class="metric-label">Total Fees</div>
+      <div class="metric-value text-warning">
+        {{ formatCurrency(metrics.total_fees) }}
+      </div>
+    </div>
+    
+    <!-- Funding (perpetual only) -->
+    <div v-if="marketType === 'perpetual'" class="card">
+      <div class="metric-label">Funding Paid</div>
+      <div class="metric-value text-warning">
+        {{ formatCurrency(metrics.total_funding) }}
+      </div>
+    </div>
+    
+    <!-- Liquidations (if any) -->
+    <div v-if="metrics.liquidation_count > 0" class="card">
+      <div class="metric-label">Liquidations</div>
+      <div class="metric-value loss">
+        {{ metrics.liquidation_count }}
+      </div>
+      <div class="text-xs text-text-muted mt-1">
+        Lost: {{ formatCurrency(metrics.liquidation_loss) }}
+      </div>
+    </div>
+  </div>
+</template>

frontend/src/components/RunHistory.vue

@@ -0,0 +1,141 @@
+<script setup lang="ts">
+import { onMounted } from 'vue'
+import { useBacktest } from '@/composables/useBacktest'
+import { useRouter } from 'vue-router'
+
+const router = useRouter()
+const { 
+  runs, 
+  currentResult, 
+  selectedRuns,
+  refreshRuns, 
+  loadRun, 
+  removeRun,
+  toggleRunSelection 
+} = useBacktest()
+
+onMounted(() => {
+  refreshRuns()
+})
+
+function formatDate(iso: string): string {
+  const d = new Date(iso)
+  return d.toLocaleDateString('en-US', { 
+    month: 'short', 
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit'
+  })
+}
+
+function formatReturn(val: number): string {
+  return (val >= 0 ? '+' : '') + val.toFixed(2) + '%'
+}
+
+async function handleClick(runId: string) {
+  await loadRun(runId)
+  router.push('/')
+}
+
+function handleCheckbox(e: Event, runId: string) {
+  e.stopPropagation()
+  toggleRunSelection(runId)
+}
+
+function handleDelete(e: Event, runId: string) {
+  e.stopPropagation()
+  if (confirm('Delete this run?')) {
+    removeRun(runId)
+  }
+}
+</script>
+
+<template>
+  <div class="flex flex-col h-full">
+    <!-- Header -->
+    <div class="p-4 border-b border-border">
+      <h2 class="text-sm font-semibold text-text-secondary uppercase tracking-wide">
+        Run History
+      </h2>
+      <p class="text-xs text-text-muted mt-1">
+        {{ runs.length }} runs | {{ selectedRuns.length }} selected
+      </p>
+    </div>
+    
+    <!-- Run List -->
+    <div class="flex-1 overflow-y-auto">
+      <div 
+        v-for="run in runs" 
+        :key="run.run_id"
+        @click="handleClick(run.run_id)"
+        class="p-3 border-b border-border-muted cursor-pointer hover:bg-bg-hover transition-colors"
+        :class="{ 'bg-bg-tertiary': currentResult?.run_id === run.run_id }"
+      >
+        <div class="flex items-start gap-2">
+          <!-- Checkbox for comparison -->
+          <input 
+            type="checkbox"
+            :checked="selectedRuns.includes(run.run_id)"
+            @click="handleCheckbox($event, run.run_id)"
+            class="mt-1 w-4 h-4 rounded border-border bg-bg-tertiary"
+          />
+          
+          <div class="flex-1 min-w-0">
+            <!-- Strategy & Symbol -->
+            <div class="flex items-center gap-2">
+              <span class="font-medium text-sm truncate">{{ run.strategy }}</span>
+              <span class="text-xs px-1.5 py-0.5 rounded bg-bg-tertiary text-text-secondary">
+                {{ run.symbol }}
+              </span>
+            </div>
+            
+            <!-- Metrics -->
+            <div class="flex items-center gap-3 mt-1">
+              <span 
+                class="text-sm font-mono"
+                :class="run.total_return >= 0 ? 'profit' : 'loss'"
+              >
+                {{ formatReturn(run.total_return) }}
+              </span>
+              <span class="text-xs text-text-muted">
+                SR {{ run.sharpe_ratio.toFixed(2) }}
+              </span>
+            </div>
+            
+            <!-- Date -->
+            <div class="text-xs text-text-muted mt-1">
+              {{ formatDate(run.created_at) }}
+            </div>
+          </div>
+          
+          <!-- Delete button -->
+          <button 
+            @click="handleDelete($event, run.run_id)"
+            class="p-1 rounded hover:bg-loss/20 text-text-muted hover:text-loss transition-colors"
+            title="Delete run"
+          >
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 7l-.867 12.142A2 2 0 0116.138 21H7.862a2 2 0 01-1.995-1.858L5 7m5 4v6m4-6v6m1-10V4a1 1 0 00-1-1h-4a1 1 0 00-1 1v3M4 7h16" />
+            </svg>
+          </button>
+        </div>
+      </div>
+      
+      <!-- Empty state -->
+      <div v-if="runs.length === 0" class="p-8 text-center text-text-muted">
+        <p>No runs yet.</p>
+        <p class="text-xs mt-1">Run a backtest to see results here.</p>
+      </div>
+    </div>
+    
+    <!-- Compare Button -->
+    <div v-if="selectedRuns.length >= 2" class="p-4 border-t border-border">
+      <router-link 
+        to="/compare"
+        class="btn btn-primary w-full"
+      >
+        Compare {{ selectedRuns.length }} Runs
+      </router-link>
+    </div>
+  </div>
+</template>

frontend/src/components/TradeLog.vue

@@ -0,0 +1,157 @@
+<script setup lang="ts">
+import { ref, computed } from 'vue'
+import type { TradeRecord } from '@/api/types'
+
+const props = defineProps<{
+  trades: TradeRecord[]
+}>()
+
+type SortKey = 'entry_time' | 'pnl' | 'return_pct' | 'size'
+const sortKey = ref<SortKey>('entry_time')
+const sortDesc = ref(true)
+
+const sortedTrades = computed(() => {
+  return [...props.trades].sort((a, b) => {
+    let aVal: number | string = 0
+    let bVal: number | string = 0
+    
+    switch (sortKey.value) {
+      case 'entry_time':
+        aVal = a.entry_time
+        bVal = b.entry_time
+        break
+      case 'pnl':
+        aVal = a.pnl ?? 0
+        bVal = b.pnl ?? 0
+        break
+      case 'return_pct':
+        aVal = a.return_pct ?? 0
+        bVal = b.return_pct ?? 0
+        break
+      case 'size':
+        aVal = a.size
+        bVal = b.size
+        break
+    }
+    
+    if (aVal < bVal) return sortDesc.value ? 1 : -1
+    if (aVal > bVal) return sortDesc.value ? -1 : 1
+    return 0
+  })
+})
+
+function toggleSort(key: SortKey) {
+  if (sortKey.value === key) {
+    sortDesc.value = !sortDesc.value
+  } else {
+    sortKey.value = key
+    sortDesc.value = true
+  }
+}
+
+function formatDate(iso: string): string {
+  if (!iso) return '-'
+  const d = new Date(iso)
+  return d.toLocaleDateString('en-US', {
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  })
+}
+
+function formatPrice(val: number | null): string {
+  if (val === null) return '-'
+  return val.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+}
+
+function formatPnL(val: number | null): string {
+  if (val === null) return '-'
+  const sign = val >= 0 ? '+' : ''
+  return sign + val.toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+}
+
+function formatReturn(val: number | null): string {
+  if (val === null) return '-'
+  return (val >= 0 ? '+' : '') + val.toFixed(2) + '%'
+}
+</script>
+
+<template>
+  <div class="card overflow-hidden">
+    <div class="flex items-center justify-between mb-4">
+      <h3 class="text-sm font-semibold text-text-secondary uppercase tracking-wide">
+        Trade Log
+      </h3>
+      <span class="text-xs text-text-muted">{{ trades.length }} trades</span>
+    </div>
+    
+    <div class="overflow-x-auto max-h-[400px] overflow-y-auto">
+      <table class="min-w-full">
+        <thead class="sticky top-0 bg-bg-card">
+          <tr>
+            <th 
+              @click="toggleSort('entry_time')" 
+              class="cursor-pointer hover:text-text-primary"
+            >
+              Entry Time
+              <span v-if="sortKey === 'entry_time'">{{ sortDesc ? ' v' : ' ^' }}</span>
+            </th>
+            <th>Exit Time</th>
+            <th>Direction</th>
+            <th>Entry</th>
+            <th>Exit</th>
+            <th 
+              @click="toggleSort('size')" 
+              class="cursor-pointer hover:text-text-primary"
+            >
+              Size
+              <span v-if="sortKey === 'size'">{{ sortDesc ? ' v' : ' ^' }}</span>
+            </th>
+            <th 
+              @click="toggleSort('pnl')" 
+              class="cursor-pointer hover:text-text-primary"
+            >
+              PnL
+              <span v-if="sortKey === 'pnl'">{{ sortDesc ? ' v' : ' ^' }}</span>
+            </th>
+            <th 
+              @click="toggleSort('return_pct')" 
+              class="cursor-pointer hover:text-text-primary"
+            >
+              Return
+              <span v-if="sortKey === 'return_pct'">{{ sortDesc ? ' v' : ' ^' }}</span>
+            </th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="(trade, idx) in sortedTrades" :key="idx">
+            <td class="text-text-secondary">{{ formatDate(trade.entry_time) }}</td>
+            <td class="text-text-secondary">{{ formatDate(trade.exit_time || '') }}</td>
+            <td>
+              <span 
+                class="px-2 py-0.5 rounded text-xs font-medium"
+                :class="trade.direction === 'Long' ? 'bg-profit/20 text-profit' : 'bg-loss/20 text-loss'"
+              >
+                {{ trade.direction }}
+              </span>
+            </td>
+            <td>${{ formatPrice(trade.entry_price) }}</td>
+            <td>${{ formatPrice(trade.exit_price) }}</td>
+            <td>{{ trade.size.toFixed(4) }}</td>
+            <td :class="(trade.pnl ?? 0) >= 0 ? 'profit' : 'loss'">
+              ${{ formatPnL(trade.pnl) }}
+            </td>
+            <td :class="(trade.return_pct ?? 0) >= 0 ? 'profit' : 'loss'">
+              {{ formatReturn(trade.return_pct) }}
+            </td>
+          </tr>
+        </tbody>
+      </table>
+      
+      <div v-if="trades.length === 0" class="p-8 text-center text-text-muted">
+        No trades executed.
+      </div>
+    </div>
+  </div>
+</template>

frontend/src/composables/useBacktest.ts

@@ -0,0 +1,150 @@
+/**
+ * Composable for managing backtest state across components.
+ */
+import { ref, computed } from 'vue'
+import type { BacktestResult, BacktestSummary, StrategyInfo, SymbolInfo } from '@/api/types'
+import { getStrategies, getSymbols, getBacktests, getBacktest, runBacktest, deleteBacktest } from '@/api/client'
+import type { BacktestRequest } from '@/api/types'
+
+// Shared state
+const strategies = ref<StrategyInfo[]>([])
+const symbols = ref<SymbolInfo[]>([])
+const runs = ref<BacktestSummary[]>([])
+const currentResult = ref<BacktestResult | null>(null)
+const selectedRuns = ref<string[]>([])
+const loading = ref(false)
+const error = ref<string | null>(null)
+
+// Computed
+const symbolsByMarket = computed(() => {
+  const grouped: Record<string, SymbolInfo[]> = {}
+  for (const s of symbols.value) {
+    const key = `${s.market_type}`
+    if (!grouped[key]) grouped[key] = []
+    grouped[key].push(s)
+  }
+  return grouped
+})
+
+export function useBacktest() {
+  /**
+   * Load strategies and symbols on app init.
+   */
+  async function init() {
+    try {
+      const [stratRes, symRes] = await Promise.all([
+        getStrategies(),
+        getSymbols(),
+      ])
+      strategies.value = stratRes.strategies
+      symbols.value = symRes.symbols
+    } catch (e) {
+      error.value = `Failed to load initial data: ${e}`
+    }
+  }
+
+  /**
+   * Refresh the run history list.
+   */
+  async function refreshRuns() {
+    try {
+      const res = await getBacktests({ limit: 100 })
+      runs.value = res.runs
+    } catch (e) {
+      error.value = `Failed to load runs: ${e}`
+    }
+  }
+
+  /**
+   * Execute a new backtest.
+   */
+  async function executeBacktest(request: BacktestRequest) {
+    loading.value = true
+    error.value = null
+    try {
+      const result = await runBacktest(request)
+      currentResult.value = result
+      await refreshRuns()
+      return result
+    } catch (e: unknown) {
+      const msg = e instanceof Error ? e.message : String(e)
+      error.value = `Backtest failed: ${msg}`
+      throw e
+    } finally {
+      loading.value = false
+    }
+  }
+
+  /**
+   * Load a specific run by ID.
+   */
+  async function loadRun(runId: string) {
+    loading.value = true
+    error.value = null
+    try {
+      const result = await getBacktest(runId)
+      currentResult.value = result
+      return result
+    } catch (e) {
+      error.value = `Failed to load run: ${e}`
+      throw e
+    } finally {
+      loading.value = false
+    }
+  }
+
+  /**
+   * Delete a run.
+   */
+  async function removeRun(runId: string) {
+    try {
+      await deleteBacktest(runId)
+      await refreshRuns()
+      if (currentResult.value?.run_id === runId) {
+        currentResult.value = null
+      }
+      selectedRuns.value = selectedRuns.value.filter(id => id !== runId)
+    } catch (e) {
+      error.value = `Failed to delete run: ${e}`
+    }
+  }
+
+  /**
+   * Toggle run selection for comparison.
+   */
+  function toggleRunSelection(runId: string) {
+    const idx = selectedRuns.value.indexOf(runId)
+    if (idx >= 0) {
+      selectedRuns.value.splice(idx, 1)
+    } else if (selectedRuns.value.length < 5) {
+      selectedRuns.value.push(runId)
+    }
+  }
+
+  /**
+   * Clear all selections.
+   */
+  function clearSelections() {
+    selectedRuns.value = []
+  }
+
+  return {
+    // State
+    strategies,
+    symbols,
+    symbolsByMarket,
+    runs,
+    currentResult,
+    selectedRuns,
+    loading,
+    error,
+    // Actions
+    init,
+    refreshRuns,
+    executeBacktest,
+    loadRun,
+    removeRun,
+    toggleRunSelection,
+    clearSelections,
+  }
+}

frontend/src/main.ts

@@ -0,0 +1,8 @@
+import { createApp } from 'vue'
+import App from './App.vue'
+import router from './router'
+import './style.css'
+
+const app = createApp(App)
+app.use(router)
+app.mount('#app')

frontend/src/router/index.ts

@@ -0,0 +1,21 @@
+import { createRouter, createWebHistory } from 'vue-router'
+import DashboardView from '@/views/DashboardView.vue'
+import CompareView from '@/views/CompareView.vue'
+
+const router = createRouter({
+  history: createWebHistory(import.meta.env.BASE_URL),
+  routes: [
+    {
+      path: '/',
+      name: 'dashboard',
+      component: DashboardView,
+    },
+    {
+      path: '/compare',
+      name: 'compare',
+      component: CompareView,
+    },
+  ],
+})
+
+export default router

frontend/src/style.css

@@ -0,0 +1,198 @@
+@import "tailwindcss";
+
+/* QuantConnect-inspired dark theme */
+@theme {
+  /* Background colors */
+  --color-bg-primary: #0d1117;
+  --color-bg-secondary: #161b22;
+  --color-bg-tertiary: #21262d;
+  --color-bg-card: #1c2128;
+  --color-bg-hover: #30363d;
+
+  /* Text colors */
+  --color-text-primary: #e6edf3;
+  --color-text-secondary: #8b949e;
+  --color-text-muted: #6e7681;
+
+  /* Accent colors */
+  --color-accent-blue: #58a6ff;
+  --color-accent-purple: #a371f7;
+  --color-accent-cyan: #39d4e8;
+
+  /* Status colors */
+  --color-profit: #3fb950;
+  --color-loss: #f85149;
+  --color-warning: #d29922;
+
+  /* Border colors */
+  --color-border: #30363d;
+  --color-border-muted: #21262d;
+
+  /* Chart colors for comparison */
+  --color-chart-1: #58a6ff;
+  --color-chart-2: #a371f7;
+  --color-chart-3: #39d4e8;
+  --color-chart-4: #f0883e;
+  --color-chart-5: #db61a2;
+}
+
+/* Base styles */
+body {
+  background-color: var(--color-bg-primary);
+  color: var(--color-text-primary);
+  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
+}
+
+/* Scrollbar styling */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: var(--color-bg-secondary);
+}
+
+::-webkit-scrollbar-thumb {
+  background: var(--color-bg-hover);
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: var(--color-border);
+}
+
+/* Input styling */
+input[type="number"],
+input[type="text"],
+select {
+  background-color: var(--color-bg-tertiary);
+  border: 1px solid var(--color-border);
+  color: var(--color-text-primary);
+  border-radius: 6px;
+  padding: 0.5rem 0.75rem;
+  font-size: 0.875rem;
+  transition: border-color 0.2s, box-shadow 0.2s;
+}
+
+input[type="number"]:focus,
+input[type="text"]:focus,
+select:focus {
+  outline: none;
+  border-color: var(--color-accent-blue);
+  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
+}
+
+/* Button base */
+.btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.5rem;
+  padding: 0.5rem 1rem;
+  font-size: 0.875rem;
+  font-weight: 500;
+  border-radius: 6px;
+  transition: all 0.2s;
+  cursor: pointer;
+  border: 1px solid transparent;
+}
+
+.btn-primary {
+  background-color: var(--color-accent-blue);
+  color: #000;
+}
+
+.btn-primary:hover {
+  background-color: #79b8ff;
+}
+
+.btn-primary:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.btn-secondary {
+  background-color: var(--color-bg-tertiary);
+  border-color: var(--color-border);
+  color: var(--color-text-primary);
+}
+
+.btn-secondary:hover {
+  background-color: var(--color-bg-hover);
+}
+
+/* Card styling */
+.card {
+  background-color: var(--color-bg-card);
+  border: 1px solid var(--color-border-muted);
+  border-radius: 8px;
+  padding: 1rem;
+}
+
+/* Profit/Loss coloring */
+.profit {
+  color: var(--color-profit);
+}
+
+.loss {
+  color: var(--color-loss);
+}
+
+/* Metric value styling */
+.metric-value {
+  font-size: 1.5rem;
+  font-weight: 600;
+  font-variant-numeric: tabular-nums;
+}
+
+.metric-label {
+  font-size: 0.75rem;
+  color: var(--color-text-secondary);
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+}
+
+/* Table styling */
+table {
+  width: 100%;
+  border-collapse: collapse;
+}
+
+th {
+  text-align: left;
+  padding: 0.75rem;
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--color-text-secondary);
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  border-bottom: 1px solid var(--color-border);
+}
+
+td {
+  padding: 0.75rem;
+  font-size: 0.875rem;
+  border-bottom: 1px solid var(--color-border-muted);
+  font-variant-numeric: tabular-nums;
+}
+
+tr:hover td {
+  background-color: var(--color-bg-hover);
+}
+
+/* Loading spinner */
+.spinner {
+  width: 20px;
+  height: 20px;
+  border: 2px solid var(--color-border);
+  border-top-color: var(--color-accent-blue);
+  border-radius: 50%;
+  animation: spin 0.8s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: rotate(360deg);
+  }
+}

frontend/src/types/plotly.d.ts

@@ -0,0 +1,4 @@
+declare module 'plotly.js-dist-min' {
+  import Plotly from 'plotly.js'
+  export default Plotly
+}

frontend/src/views/CompareView.vue

@@ -0,0 +1,362 @@
+<script setup lang="ts">
+import { ref, watch, onMounted, onUnmounted } from 'vue'
+import { useRouter } from 'vue-router'
+import Plotly from 'plotly.js-dist-min'
+import { useBacktest } from '@/composables/useBacktest'
+import { compareRuns } from '@/api/client'
+import type { BacktestResult, CompareResult } from '@/api/types'
+
+const router = useRouter()
+const { selectedRuns, clearSelections } = useBacktest()
+
+const chartRef = ref<HTMLDivElement | null>(null)
+const loading = ref(false)
+const error = ref<string | null>(null)
+const compareResult = ref<CompareResult | null>(null)
+
+const CHART_COLORS = [
+  '#58a6ff', // blue
+  '#a371f7', // purple
+  '#39d4e8', // cyan
+  '#f0883e', // orange
+  '#db61a2', // pink
+]
+
+async function loadComparison() {
+  if (selectedRuns.value.length < 2) {
+    router.push('/')
+    return
+  }
+  
+  loading.value = true
+  error.value = null
+  
+  try {
+    compareResult.value = await compareRuns(selectedRuns.value)
+    renderChart()
+  } catch (e) {
+    error.value = `Failed to load comparison: ${e}`
+  } finally {
+    loading.value = false
+  }
+}
+
+function renderChart() {
+  if (!chartRef.value || !compareResult.value) return
+  
+  const traces: Plotly.Data[] = compareResult.value.runs.map((run, idx) => {
+    // Normalize equity curves to start at 100 for comparison
+    const startValue = run.equity_curve[0]?.value || 1
+    const normalizedValues = run.equity_curve.map(p => (p.value / startValue) * 100)
+    
+    return {
+      x: run.equity_curve.map(p => p.timestamp),
+      y: normalizedValues,
+      type: 'scatter',
+      mode: 'lines',
+      name: `${run.strategy} (${run.params.period || ''})`,
+      line: { color: CHART_COLORS[idx % CHART_COLORS.length], width: 2 },
+      hovertemplate: `%{x}<br>${run.strategy}: %{y:.2f}<extra></extra>`,
+    }
+  })
+  
+  const layout: Partial<Plotly.Layout> = {
+    title: {
+      text: 'Normalized Equity Comparison (Base 100)',
+      font: { color: '#8b949e', size: 14 },
+    },
+    paper_bgcolor: 'transparent',
+    plot_bgcolor: 'transparent',
+    margin: { l: 60, r: 20, t: 50, b: 40 },
+    xaxis: {
+      showgrid: true,
+      gridcolor: '#30363d',
+      tickfont: { color: '#8b949e', size: 10 },
+      linecolor: '#30363d',
+    },
+    yaxis: {
+      showgrid: true,
+      gridcolor: '#30363d',
+      tickfont: { color: '#8b949e', size: 10 },
+      linecolor: '#30363d',
+      title: { text: 'Normalized Value', font: { color: '#8b949e' } },
+    },
+    legend: {
+      orientation: 'h',
+      yanchor: 'bottom',
+      y: 1.02,
+      xanchor: 'left',
+      x: 0,
+      font: { color: '#8b949e' },
+    },
+    hovermode: 'x unified',
+  }
+  
+  Plotly.react(chartRef.value, traces, layout, { responsive: true, displayModeBar: false })
+}
+
+function formatPercent(val: number): string {
+  return (val >= 0 ? '+' : '') + val.toFixed(2) + '%'
+}
+
+function formatNumber(val: number | null): string {
+  if (val === null) return '-'
+  return val.toFixed(2)
+}
+
+function getBestIndex(runs: BacktestResult[], metric: keyof BacktestResult['metrics'], higher = true): number {
+  let bestIdx = 0
+  let bestVal = runs[0]?.metrics[metric] ?? 0
+  
+  for (let i = 1; i < runs.length; i++) {
+    const val = runs[i]?.metrics[metric] ?? 0
+    const isBetter = higher ? (val as number) > (bestVal as number) : (val as number) < (bestVal as number)
+    if (isBetter) {
+      bestIdx = i
+      bestVal = val
+    }
+  }
+  
+  return bestIdx
+}
+
+function handleClearAndBack() {
+  clearSelections()
+  router.push('/')
+}
+
+onMounted(() => {
+  loadComparison()
+  window.addEventListener('resize', renderChart)
+})
+
+onUnmounted(() => {
+  window.removeEventListener('resize', renderChart)
+  if (chartRef.value) {
+    Plotly.purge(chartRef.value)
+  }
+})
+
+watch(selectedRuns, () => {
+  if (selectedRuns.value.length >= 2) {
+    loadComparison()
+  }
+})
+</script>
+
+<template>
+  <div class="p-6 space-y-6">
+    <!-- Header -->
+    <div class="flex items-center justify-between">
+      <div>
+        <h1 class="text-2xl font-bold">Compare Runs</h1>
+        <p class="text-text-secondary text-sm mt-1">
+          Comparing {{ selectedRuns.length }} backtest runs
+        </p>
+      </div>
+      <button @click="handleClearAndBack" class="btn btn-secondary">
+        Clear & Back
+      </button>
+    </div>
+    
+    <!-- Error -->
+    <div v-if="error" class="p-4 rounded-lg bg-loss/10 border border-loss/30 text-loss">
+      {{ error }}
+    </div>
+    
+    <!-- Loading -->
+    <div v-if="loading" class="card flex items-center justify-center h-[400px]">
+      <div class="spinner" style="width: 40px; height: 40px;"></div>
+    </div>
+    
+    <!-- Comparison Results -->
+    <template v-else-if="compareResult">
+      <!-- Equity Curve Comparison -->
+      <div class="card">
+        <div ref="chartRef" class="h-[400px]"></div>
+      </div>
+      
+      <!-- Metrics Comparison Table -->
+      <div class="card overflow-x-auto">
+        <h3 class="text-sm font-semibold text-text-secondary uppercase tracking-wide mb-4">
+          Metrics Comparison
+        </h3>
+        <table class="min-w-full">
+          <thead>
+            <tr>
+              <th>Metric</th>
+              <th 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+              >
+                <span 
+                  class="inline-block w-3 h-3 rounded-full mr-2"
+                  :style="{ backgroundColor: CHART_COLORS[idx] }"
+                ></span>
+                {{ run.strategy }}
+              </th>
+            </tr>
+          </thead>
+          <tbody>
+            <!-- Total Return -->
+            <tr>
+              <td class="font-medium">Strategy Return</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="[
+                  run.metrics.total_return >= 0 ? 'profit' : 'loss',
+                  idx === getBestIndex(compareResult.runs, 'total_return') ? 'font-bold' : ''
+                ]"
+              >
+                {{ formatPercent(run.metrics.total_return) }}
+              </td>
+            </tr>
+            
+            <!-- Benchmark Return -->
+            <tr>
+              <td class="font-medium">Benchmark (B&H)</td>
+              <td 
+                v-for="run in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="run.metrics.benchmark_return >= 0 ? 'profit' : 'loss'"
+              >
+                {{ formatPercent(run.metrics.benchmark_return) }}
+              </td>
+            </tr>
+            
+            <!-- Alpha -->
+            <tr>
+              <td class="font-medium">Alpha</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="[
+                  run.metrics.alpha >= 0 ? 'profit' : 'loss',
+                  idx === getBestIndex(compareResult.runs, 'alpha') ? 'font-bold' : ''
+                ]"
+              >
+                {{ formatPercent(run.metrics.alpha) }}
+              </td>
+            </tr>
+            
+            <!-- Sharpe Ratio -->
+            <tr>
+              <td class="font-medium">Sharpe Ratio</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="idx === getBestIndex(compareResult.runs, 'sharpe_ratio') ? 'font-bold text-accent-blue' : ''"
+              >
+                {{ formatNumber(run.metrics.sharpe_ratio) }}
+              </td>
+            </tr>
+            
+            <!-- Max Drawdown -->
+            <tr>
+              <td class="font-medium">Max Drawdown</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center loss"
+                :class="idx === getBestIndex(compareResult.runs, 'max_drawdown', false) ? 'font-bold' : ''"
+              >
+                {{ formatPercent(run.metrics.max_drawdown) }}
+              </td>
+            </tr>
+            
+            <!-- Win Rate -->
+            <tr>
+              <td class="font-medium">Win Rate</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="idx === getBestIndex(compareResult.runs, 'win_rate') ? 'font-bold text-profit' : ''"
+              >
+                {{ formatNumber(run.metrics.win_rate) }}%
+              </td>
+            </tr>
+            
+            <!-- Total Trades -->
+            <tr>
+              <td class="font-medium">Total Trades</td>
+              <td 
+                v-for="run in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+              >
+                {{ run.metrics.total_trades }}
+              </td>
+            </tr>
+            
+            <!-- Profit Factor -->
+            <tr>
+              <td class="font-medium">Profit Factor</td>
+              <td 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+                :class="idx === getBestIndex(compareResult.runs, 'profit_factor') ? 'font-bold text-profit' : ''"
+              >
+                {{ formatNumber(run.metrics.profit_factor) }}
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+      
+      <!-- Parameter Differences -->
+      <div v-if="Object.keys(compareResult.param_diff).length > 0" class="card">
+        <h3 class="text-sm font-semibold text-text-secondary uppercase tracking-wide mb-4">
+          Parameter Differences
+        </h3>
+        <table class="min-w-full">
+          <thead>
+            <tr>
+              <th>Parameter</th>
+              <th 
+                v-for="(run, idx) in compareResult.runs" 
+                :key="run.run_id"
+                class="text-center"
+              >
+                <span 
+                  class="inline-block w-3 h-3 rounded-full mr-2"
+                  :style="{ backgroundColor: CHART_COLORS[idx] }"
+                ></span>
+                Run {{ idx + 1 }}
+              </th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr v-for="(values, key) in compareResult.param_diff" :key="key">
+              <td class="font-medium font-mono">{{ key }}</td>
+              <td 
+                v-for="(val, idx) in values" 
+                :key="idx"
+                class="text-center font-mono"
+              >
+                {{ val ?? '-' }}
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </template>
+    
+    <!-- No Selection -->
+    <div v-else class="card flex items-center justify-center h-[400px]">
+      <div class="text-center text-text-muted">
+        <p>Select at least 2 runs from the history to compare.</p>
+        <button @click="router.push('/')" class="btn btn-secondary mt-4">
+          Go to Dashboard
+        </button>
+      </div>
+    </div>
+  </div>
+</template>

frontend/src/views/DashboardView.vue

@@ -0,0 +1,136 @@
+<script setup lang="ts">
+import { useBacktest } from '@/composables/useBacktest'
+import BacktestConfig from '@/components/BacktestConfig.vue'
+import EquityCurve from '@/components/EquityCurve.vue'
+import MetricsPanel from '@/components/MetricsPanel.vue'
+import TradeLog from '@/components/TradeLog.vue'
+
+const { currentResult, loading, error } = useBacktest()
+</script>
+
+<template>
+  <div class="p-6 space-y-6">
+    <!-- Header -->
+    <div class="flex items-center justify-between">
+      <div>
+        <h1 class="text-2xl font-bold">Lowkey Backtest</h1>
+        <p class="text-text-secondary text-sm mt-1">
+          Run and analyze trading strategy backtests
+        </p>
+      </div>
+    </div>
+    
+    <!-- Error Banner -->
+    <div 
+      v-if="error" 
+      class="p-4 rounded-lg bg-loss/10 border border-loss/30 text-loss"
+    >
+      {{ error }}
+    </div>
+    
+    <!-- Main Grid -->
+    <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
+      <!-- Config Panel (Left) -->
+      <div class="lg:col-span-1">
+        <BacktestConfig />
+      </div>
+      
+      <!-- Results (Right) -->
+      <div class="lg:col-span-2 space-y-6">
+        <!-- Loading State -->
+        <div 
+          v-if="loading" 
+          class="card flex items-center justify-center h-[400px]"
+        >
+          <div class="text-center">
+            <div class="spinner mx-auto mb-4" style="width: 40px; height: 40px;"></div>
+            <p class="text-text-secondary">Running backtest...</p>
+          </div>
+        </div>
+        
+        <!-- Results Display -->
+        <template v-else-if="currentResult">
+          <!-- Result Header -->
+          <div class="card">
+            <div class="flex items-center justify-between">
+              <div>
+                <h2 class="text-lg font-semibold">
+                  {{ currentResult.strategy }} on {{ currentResult.symbol }}
+                </h2>
+                <p class="text-sm text-text-secondary mt-1">
+                  {{ currentResult.start_date }} - {{ currentResult.end_date }}
+                  <span class="mx-2">|</span>
+                  {{ currentResult.market_type.toUpperCase() }}
+                  <span v-if="currentResult.leverage > 1" class="ml-2">
+                    {{ currentResult.leverage }}x
+                  </span>
+                </p>
+              </div>
+              <div class="text-right">
+                <div 
+                  class="text-2xl font-bold"
+                  :class="currentResult.metrics.total_return >= 0 ? 'profit' : 'loss'"
+                >
+                  {{ currentResult.metrics.total_return >= 0 ? '+' : '' }}{{ currentResult.metrics.total_return.toFixed(2) }}%
+                </div>
+                <div class="text-sm text-text-secondary">
+                  Sharpe: {{ currentResult.metrics.sharpe_ratio.toFixed(2) }}
+                </div>
+              </div>
+            </div>
+          </div>
+          
+          <!-- Equity Curve -->
+          <div class="card">
+            <h3 class="text-sm font-semibold text-text-secondary uppercase tracking-wide mb-4">
+              Equity Curve
+            </h3>
+            <div class="h-[350px]">
+              <EquityCurve :data="currentResult.equity_curve" />
+            </div>
+          </div>
+          
+          <!-- Metrics -->
+          <MetricsPanel 
+            :metrics="currentResult.metrics"
+            :leverage="currentResult.leverage"
+            :market-type="currentResult.market_type"
+          />
+          
+          <!-- Trade Log -->
+          <TradeLog :trades="currentResult.trades" />
+          
+          <!-- Parameters Used -->
+          <div class="card">
+            <h3 class="text-sm font-semibold text-text-secondary uppercase tracking-wide mb-3">
+              Parameters
+            </h3>
+            <div class="flex flex-wrap gap-2">
+              <span 
+                v-for="(value, key) in currentResult.params" 
+                :key="key"
+                class="px-2 py-1 rounded bg-bg-tertiary text-sm font-mono"
+              >
+                {{ key }}: {{ value }}
+              </span>
+            </div>
+          </div>
+        </template>
+        
+        <!-- Empty State -->
+        <div 
+          v-else 
+          class="card flex items-center justify-center h-[400px]"
+        >
+          <div class="text-center text-text-muted">
+            <svg class="w-16 h-16 mx-auto mb-4 opacity-50" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1" d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z" />
+            </svg>
+            <p>Configure and run a backtest to see results.</p>
+            <p class="text-xs mt-2">Or select a run from history.</p>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>

frontend/tsconfig.app.json

@@ -0,0 +1,20 @@
+{
+  "extends": "@vue/tsconfig/tsconfig.dom.json",
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
+    "types": ["vite/client"],
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    },
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["src/**/*.ts", "src/**/*.tsx", "src/**/*.vue"]
+}

frontend/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}

frontend/tsconfig.node.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2023",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "types": ["node"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "erasableSyntaxOnly": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}

frontend/vite.config.ts

@@ -0,0 +1,22 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import tailwindcss from '@tailwindcss/vite'
+import { fileURLToPath, URL } from 'node:url'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [vue(), tailwindcss()],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url))
+    }
+  },
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://127.0.0.1:8000',
+        changeOrigin: true
+      }
+    }
+  }
+})

live_trading/README.md

@@ -0,0 +1,135 @@
+# Live Trading - Regime Reversion Strategy
+
+This module implements live trading for the ML-based regime detection and mean reversion strategy on OKX perpetual futures.
+
+## Overview
+
+The strategy trades ETH perpetual futures based on:
+1. **BTC/ETH Spread Z-Score**: Identifies when ETH is cheap or expensive relative to BTC
+2. **Random Forest ML Model**: Predicts probability of successful mean reversion
+3. **Funding Rate Filter**: Avoids trades in overheated/oversold market conditions
+
+## Setup
+
+### 1. API Keys
+
+The bot loads OKX API credentials from `../BTC_spot_MVRV/.env`.
+
+**IMPORTANT: OKX uses SEPARATE API keys for live vs demo trading!**
+
+#### Option A: Demo Trading (Recommended for Testing)
+1. Go to [OKX Demo Trading](https://www.okx.com/demo-trading)
+2. Create a demo account if you haven't
+3. Generate API keys from the demo environment
+4. Set in `.env`:
+```env
+OKX_API_KEY=your_demo_api_key
+OKX_SECRET=your_demo_secret
+OKX_PASSWORD=your_demo_passphrase
+OKX_DEMO_MODE=true
+```
+
+#### Option B: Live Trading (Real Funds)
+Use your existing live API keys with:
+```env
+OKX_API_KEY=your_live_api_key
+OKX_SECRET=your_live_secret
+OKX_PASSWORD=your_live_passphrase
+OKX_DEMO_MODE=false
+```
+
+**Note:** You cannot use live API keys with `OKX_DEMO_MODE=true` or vice versa.
+OKX will return error `50101: APIKey does not match current environment`.
+
+### 2. Dependencies
+
+All dependencies are already in the project's `pyproject.toml`. No additional installation needed.
+
+## Usage
+
+### Run with Demo Account (Recommended First)
+
+```bash
+cd /path/to/lowkey_backtest
+uv run python -m live_trading.main
+```
+
+### Command Line Options
+
+```bash
+# Custom position size
+uv run python -m live_trading.main --max-position 500
+
+# Custom leverage
+uv run python -m live_trading.main --leverage 2
+
+# Custom cycle interval (in seconds)
+uv run python -m live_trading.main --interval 1800
+
+# Combine options
+uv run python -m live_trading.main --max-position 1000 --leverage 3 --interval 3600
+```
+
+### Live Trading (Use with Caution)
+
+```bash
+# Requires OKX_DEMO_MODE=false in .env
+uv run python -m live_trading.main --live
+```
+
+## Architecture
+
+```
+live_trading/
+    __init__.py          # Module initialization
+    config.py            # Configuration loading
+    okx_client.py        # OKX API wrapper
+    data_feed.py         # Real-time OHLCV data
+    position_manager.py  # Position tracking
+    live_regime_strategy.py  # Strategy logic
+    main.py              # Entry point
+    .env.example         # Environment template
+    README.md            # This file
+```
+
+## Strategy Parameters
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `z_entry_threshold` | 1.0 | Enter when \|Z-Score\| > threshold |
+| `z_window` | 24 | Rolling window for Z-Score (hours) |
+| `model_prob_threshold` | 0.5 | ML probability threshold for entry |
+| `funding_threshold` | 0.005 | Funding rate filter threshold |
+| `stop_loss_pct` | 6% | Stop-loss percentage |
+| `take_profit_pct` | 5% | Take-profit percentage |
+
+## Files Generated
+
+- `live_trading/positions.json` - Open positions persistence
+- `live_trading/trade_log.csv` - Trade history
+- `live_trading/regime_model.pkl` - Trained ML model
+- `logs/live_trading.log` - Trading logs
+
+## Risk Warning
+
+This is experimental trading software. Use at your own risk:
+- Always start with demo trading
+- Never risk more than you can afford to lose
+- Monitor the bot regularly
+- Have a kill switch ready (Ctrl+C)
+
+## Troubleshooting
+
+### API Key Issues
+- Ensure API keys have trading permissions
+- For demo trading, use demo-specific API keys
+- Check that passphrase matches exactly
+
+### No Signals Generated
+- The strategy requires the ML model to be trained
+- Need at least 200 candles of data
+- Model trains automatically on first run
+
+### Position Sync Issues
+- The bot syncs with exchange positions on each cycle
+- If positions are closed manually, the bot will detect this

live_trading/__init__.py

@@ -0,0 +1,6 @@
+"""
+Live Trading Module for Regime Reversion Strategy on OKX.
+
+This module implements live trading using the ML-based regime detection
+and mean reversion strategy on OKX perpetual futures.
+"""

live_trading/config.py

@@ -0,0 +1,114 @@
+"""
+Configuration for Live Trading.
+
+Loads OKX API credentials from environment variables.
+Uses demo/sandbox mode by default for paper trading.
+"""
+import os
+from pathlib import Path
+from dataclasses import dataclass, field
+from dotenv import load_dotenv
+
+load_dotenv()
+
+
+@dataclass
+class OKXConfig:
+    """OKX API configuration."""
+    api_key: str = field(default_factory=lambda: "")
+    secret: str = field(default_factory=lambda: "")
+    password: str = field(default_factory=lambda: "")
+    demo_mode: bool = field(default_factory=lambda: True)
+    
+    def __post_init__(self):
+        """Load credentials based on demo mode setting."""
+        # Check demo mode first
+        self.demo_mode = os.getenv("OKX_DEMO_MODE", "true").lower() in ("true", "1", "yes")
+        
+        if self.demo_mode:
+            # Load demo-specific credentials if available
+            self.api_key = os.getenv("OKX_DEMO_API_KEY", os.getenv("OKX_API_KEY", ""))
+            self.secret = os.getenv("OKX_DEMO_SECRET", os.getenv("OKX_SECRET", ""))
+            self.password = os.getenv("OKX_DEMO_PASSWORD", os.getenv("OKX_PASSWORD", ""))
+        else:
+            # Load live credentials
+            self.api_key = os.getenv("OKX_API_KEY", "")
+            self.secret = os.getenv("OKX_SECRET", "")
+            self.password = os.getenv("OKX_PASSWORD", "")
+    
+    def validate(self) -> None:
+        """Validate that required credentials are present."""
+        mode = "demo" if self.demo_mode else "live"
+        if not self.api_key:
+            raise ValueError(f"OKX API key not set for {mode} mode")
+        if not self.secret:
+            raise ValueError(f"OKX secret not set for {mode} mode")
+        if not self.password:
+            raise ValueError(f"OKX password not set for {mode} mode")
+
+
+@dataclass
+class TradingConfig:
+    """Trading parameters configuration."""
+    # Trading pairs
+    eth_symbol: str = "ETH/USDT:USDT"  # ETH perpetual (primary trading asset)
+    btc_symbol: str = "BTC/USDT:USDT"  # BTC perpetual (context asset)
+    
+    # Timeframe
+    timeframe: str = "1h"
+    candles_to_fetch: int = 500  # Enough for feature calculation
+    
+    # Position sizing
+    max_position_usdt: float = -1.0    # Max position size in USDT. If <= 0, use all available funds
+    min_position_usdt: float = 10.0    # Min position size in USDT
+    leverage: int = 1                  # Leverage (1x = no leverage)
+    margin_mode: str = "cross"         # "cross" or "isolated"
+    
+    # Risk management
+    stop_loss_pct: float = 0.06        # 6% stop loss
+    take_profit_pct: float = 0.05      # 5% take profit
+    max_concurrent_positions: int = 1  # Max open positions
+    
+    # Strategy parameters (from regime_strategy.py)
+    z_entry_threshold: float = 1.0     # Enter when |Z| > 1.0
+    z_window: int = 24                 # 24h rolling Z-score window
+    model_prob_threshold: float = 0.5  # ML model probability threshold
+    funding_threshold: float = 0.005   # Funding rate filter threshold
+    
+    # Execution
+    sleep_seconds: int = 3600          # Run every hour (1h candles)
+    slippage_pct: float = 0.001        # 0.1% slippage buffer
+
+
+@dataclass
+class PathConfig:
+    """File paths configuration."""
+    base_dir: Path = field(
+        default_factory=lambda: Path(__file__).parent.parent
+    )
+    data_dir: Path = field(default=None)
+    logs_dir: Path = field(default=None)
+    model_path: Path = field(default=None)
+    positions_file: Path = field(default=None)
+    trade_log_file: Path = field(default=None)
+    cq_data_path: Path = field(default=None)
+    
+    def __post_init__(self):
+        self.data_dir = self.base_dir / "data"
+        self.logs_dir = self.base_dir / "logs"
+        self.model_path = self.base_dir / "live_trading" / "regime_model.pkl"
+        self.positions_file = self.base_dir / "live_trading" / "positions.json"
+        self.trade_log_file = self.base_dir / "live_trading" / "trade_log.csv"
+        self.cq_data_path = self.data_dir / "cq_training_data.csv"
+        
+        # Ensure directories exist
+        self.data_dir.mkdir(parents=True, exist_ok=True)
+        self.logs_dir.mkdir(parents=True, exist_ok=True)
+
+
+def get_config():
+    """Get all configuration objects."""
+    okx = OKXConfig()
+    trading = TradingConfig()
+    paths = PathConfig()
+    return okx, trading, paths

live_trading/data_feed.py

@@ -0,0 +1,216 @@
+"""
+Data Feed for Live Trading.
+
+Fetches real-time OHLCV data from OKX and prepares features
+for the regime strategy.
+"""
+import logging
+from datetime import datetime, timezone
+from typing import Optional
+
+import pandas as pd
+import numpy as np
+import ta
+
+from .okx_client import OKXClient
+from .config import TradingConfig, PathConfig
+
+logger = logging.getLogger(__name__)
+
+
+class DataFeed:
+    """
+    Real-time data feed for the regime strategy.
+    
+    Fetches BTC and ETH OHLCV data from OKX and calculates
+    the spread-based features required by the ML model.
+    """
+    
+    def __init__(
+        self, 
+        okx_client: OKXClient, 
+        trading_config: TradingConfig,
+        path_config: PathConfig
+    ):
+        self.client = okx_client
+        self.config = trading_config
+        self.paths = path_config
+        self.cq_data: Optional[pd.DataFrame] = None
+        self._load_cq_data()
+    
+    def _load_cq_data(self) -> None:
+        """Load CryptoQuant on-chain data if available."""
+        try:
+            if self.paths.cq_data_path.exists():
+                self.cq_data = pd.read_csv(
+                    self.paths.cq_data_path,
+                    index_col='timestamp',
+                    parse_dates=True
+                )
+                if self.cq_data.index.tz is None:
+                    self.cq_data.index = self.cq_data.index.tz_localize('UTC')
+                logger.info(f"Loaded CryptoQuant data: {len(self.cq_data)} rows")
+        except Exception as e:
+            logger.warning(f"Could not load CryptoQuant data: {e}")
+            self.cq_data = None
+    
+    def fetch_ohlcv_data(self) -> tuple[pd.DataFrame, pd.DataFrame]:
+        """
+        Fetch OHLCV data for BTC and ETH.
+        
+        Returns:
+            Tuple of (btc_df, eth_df) DataFrames
+        """
+        # Fetch BTC data
+        btc_ohlcv = self.client.fetch_ohlcv(
+            self.config.btc_symbol,
+            self.config.timeframe,
+            self.config.candles_to_fetch
+        )
+        btc_df = self._ohlcv_to_dataframe(btc_ohlcv)
+        
+        # Fetch ETH data
+        eth_ohlcv = self.client.fetch_ohlcv(
+            self.config.eth_symbol,
+            self.config.timeframe,
+            self.config.candles_to_fetch
+        )
+        eth_df = self._ohlcv_to_dataframe(eth_ohlcv)
+        
+        logger.info(
+            f"Fetched {len(btc_df)} BTC candles and {len(eth_df)} ETH candles"
+        )
+        
+        return btc_df, eth_df
+    
+    def _ohlcv_to_dataframe(self, ohlcv: list) -> pd.DataFrame:
+        """Convert OHLCV list to DataFrame."""
+        df = pd.DataFrame(
+            ohlcv,
+            columns=['timestamp', 'open', 'high', 'low', 'close', 'volume']
+        )
+        df['timestamp'] = pd.to_datetime(df['timestamp'], unit='ms', utc=True)
+        df.set_index('timestamp', inplace=True)
+        return df
+    
+    def calculate_features(
+        self, 
+        btc_df: pd.DataFrame, 
+        eth_df: pd.DataFrame
+    ) -> pd.DataFrame:
+        """
+        Calculate spread-based features for the regime strategy.
+        
+        Args:
+            btc_df: BTC OHLCV DataFrame
+            eth_df: ETH OHLCV DataFrame
+            
+        Returns:
+            DataFrame with calculated features
+        """
+        # Align indices
+        common_idx = btc_df.index.intersection(eth_df.index)
+        df_btc = btc_df.loc[common_idx].copy()
+        df_eth = eth_df.loc[common_idx].copy()
+        
+        # Calculate spread (ETH/BTC ratio)
+        spread = df_eth['close'] / df_btc['close']
+        
+        # Z-Score of spread
+        z_window = self.config.z_window
+        rolling_mean = spread.rolling(window=z_window).mean()
+        rolling_std = spread.rolling(window=z_window).std()
+        z_score = (spread - rolling_mean) / rolling_std
+        
+        # Spread technicals
+        spread_rsi = ta.momentum.RSIIndicator(spread, window=14).rsi()
+        spread_roc = spread.pct_change(periods=5) * 100
+        spread_change_1h = spread.pct_change(periods=1)
+        
+        # Volume ratio
+        vol_ratio = df_eth['volume'] / df_btc['volume']
+        vol_ratio_ma = vol_ratio.rolling(window=12).mean()
+        
+        # Volatility
+        ret_btc = df_btc['close'].pct_change()
+        ret_eth = df_eth['close'].pct_change()
+        vol_btc = ret_btc.rolling(window=z_window).std()
+        vol_eth = ret_eth.rolling(window=z_window).std()
+        vol_spread_ratio = vol_eth / vol_btc
+        
+        # Build features DataFrame
+        features = pd.DataFrame(index=spread.index)
+        features['spread'] = spread
+        features['z_score'] = z_score
+        features['spread_rsi'] = spread_rsi
+        features['spread_roc'] = spread_roc
+        features['spread_change_1h'] = spread_change_1h
+        features['vol_ratio'] = vol_ratio
+        features['vol_ratio_rel'] = vol_ratio / vol_ratio_ma
+        features['vol_diff_ratio'] = vol_spread_ratio
+        
+        # Add price data for reference
+        features['btc_close'] = df_btc['close']
+        features['eth_close'] = df_eth['close']
+        features['eth_volume'] = df_eth['volume']
+        
+        # Merge CryptoQuant data if available
+        if self.cq_data is not None:
+            cq_aligned = self.cq_data.reindex(features.index, method='ffill')
+            
+            # Calculate derived features
+            if 'btc_funding' in cq_aligned.columns and 'eth_funding' in cq_aligned.columns:
+                cq_aligned['funding_diff'] = (
+                    cq_aligned['eth_funding'] - cq_aligned['btc_funding']
+                )
+            if 'btc_inflow' in cq_aligned.columns and 'eth_inflow' in cq_aligned.columns:
+                cq_aligned['inflow_ratio'] = (
+                    cq_aligned['eth_inflow'] / (cq_aligned['btc_inflow'] + 1)
+                )
+            
+            features = features.join(cq_aligned)
+        
+        return features.dropna()
+    
+    def get_latest_data(self) -> Optional[pd.DataFrame]:
+        """
+        Fetch and process latest market data.
+        
+        Returns:
+            DataFrame with features or None on error
+        """
+        try:
+            btc_df, eth_df = self.fetch_ohlcv_data()
+            features = self.calculate_features(btc_df, eth_df)
+            
+            if features.empty:
+                logger.warning("No valid features calculated")
+                return None
+            
+            logger.info(
+                f"Latest data: ETH={features['eth_close'].iloc[-1]:.2f}, "
+                f"BTC={features['btc_close'].iloc[-1]:.2f}, "
+                f"Z-Score={features['z_score'].iloc[-1]:.3f}"
+            )
+            
+            return features
+            
+        except Exception as e:
+            logger.error(f"Error fetching market data: {e}", exc_info=True)
+            return None
+    
+    def get_current_funding_rates(self) -> dict:
+        """
+        Get current funding rates for BTC and ETH.
+        
+        Returns:
+            Dictionary with 'btc_funding' and 'eth_funding' rates
+        """
+        btc_funding = self.client.get_funding_rate(self.config.btc_symbol)
+        eth_funding = self.client.get_funding_rate(self.config.eth_symbol)
+        
+        return {
+            'btc_funding': btc_funding,
+            'eth_funding': eth_funding,
+            'funding_diff': eth_funding - btc_funding,
+        }

live_trading/env.template

@@ -0,0 +1,15 @@
+# OKX API Credentials Template
+# Copy this file to .env and fill in your credentials
+# For demo trading, use your OKX demo account API keys
+# Generate keys at: https://www.okx.com/account/my-api (Demo Trading section)
+
+OKX_API_KEY=your_api_key_here
+OKX_SECRET=your_secret_key_here
+OKX_PASSWORD=your_passphrase_here
+
+# Demo Mode: Set to "true" for paper trading (sandbox)
+# Set to "false" for live trading with real funds
+OKX_DEMO_MODE=true
+
+# CryptoQuant API (optional, for on-chain features)
+CRYPTOQUANT_API_KEY=your_cryptoquant_api_key_here

live_trading/live_regime_strategy.py

@@ -0,0 +1,287 @@
+"""
+Live Regime Reversion Strategy.
+
+Adapts the backtest regime strategy for live trading.
+Uses a pre-trained ML model or trains on historical data.
+"""
+import logging
+import pickle
+from pathlib import Path
+from typing import Optional
+
+import numpy as np
+import pandas as pd
+from sklearn.ensemble import RandomForestClassifier
+
+from .config import TradingConfig, PathConfig
+
+logger = logging.getLogger(__name__)
+
+
+class LiveRegimeStrategy:
+    """
+    Live trading implementation of the ML-based regime detection
+    and mean reversion strategy.
+    
+    Logic:
+    1. Calculates BTC/ETH spread Z-Score
+    2. Uses Random Forest to predict reversion probability
+    3. Applies funding rate filter
+    4. Generates long/short signals on ETH perpetual
+    """
+    
+    def __init__(
+        self,
+        trading_config: TradingConfig,
+        path_config: PathConfig
+    ):
+        self.config = trading_config
+        self.paths = path_config
+        self.model: Optional[RandomForestClassifier] = None
+        self.feature_cols: Optional[list] = None
+        self._load_or_train_model()
+    
+    def _load_or_train_model(self) -> None:
+        """Load pre-trained model or train a new one."""
+        if self.paths.model_path.exists():
+            try:
+                with open(self.paths.model_path, 'rb') as f:
+                    saved = pickle.load(f)
+                    self.model = saved['model']
+                    self.feature_cols = saved['feature_cols']
+                logger.info(f"Loaded model from {self.paths.model_path}")
+                return
+            except Exception as e:
+                logger.warning(f"Could not load model: {e}")
+        
+        logger.info("No pre-trained model found. Will train on first data batch.")
+    
+    def save_model(self) -> None:
+        """Save trained model to file."""
+        if self.model is None:
+            return
+        
+        try:
+            with open(self.paths.model_path, 'wb') as f:
+                pickle.dump({
+                    'model': self.model,
+                    'feature_cols': self.feature_cols,
+                }, f)
+            logger.info(f"Saved model to {self.paths.model_path}")
+        except Exception as e:
+            logger.error(f"Could not save model: {e}")
+    
+    def train_model(self, features: pd.DataFrame) -> None:
+        """
+        Train the Random Forest model on historical data.
+        
+        Args:
+            features: DataFrame with calculated features
+        """
+        logger.info(f"Training model on {len(features)} samples...")
+        
+        z_thresh = self.config.z_entry_threshold
+        horizon = 102  # Optimal horizon from research
+        profit_target = 0.005  # 0.5% profit threshold
+        
+        # Define targets
+        future_min = features['spread'].rolling(window=horizon).min().shift(-horizon)
+        future_max = features['spread'].rolling(window=horizon).max().shift(-horizon)
+        
+        target_short = features['spread'] * (1 - profit_target)
+        target_long = features['spread'] * (1 + profit_target)
+        
+        success_short = (features['z_score'] > z_thresh) & (future_min < target_short)
+        success_long = (features['z_score'] < -z_thresh) & (future_max > target_long)
+        
+        targets = np.select([success_short, success_long], [1, 1], default=0)
+        
+        # Exclude non-feature columns
+        exclude = ['spread', 'btc_close', 'eth_close', 'eth_volume']
+        self.feature_cols = [c for c in features.columns if c not in exclude]
+        
+        # Clean features
+        X = features[self.feature_cols].fillna(0)
+        X = X.replace([np.inf, -np.inf], 0)
+        
+        # Remove rows with invalid targets
+        valid_mask = ~np.isnan(targets) & future_min.notna().values & future_max.notna().values
+        X_clean = X[valid_mask]
+        y_clean = targets[valid_mask]
+        
+        if len(X_clean) < 100:
+            logger.warning("Not enough data to train model")
+            return
+        
+        # Train model
+        self.model = RandomForestClassifier(
+            n_estimators=300,
+            max_depth=5,
+            min_samples_leaf=30,
+            class_weight={0: 1, 1: 3},
+            random_state=42
+        )
+        self.model.fit(X_clean, y_clean)
+        
+        logger.info(f"Model trained on {len(X_clean)} samples")
+        self.save_model()
+    
+    def generate_signal(
+        self,
+        features: pd.DataFrame,
+        current_funding: dict
+    ) -> dict:
+        """
+        Generate trading signal from latest features.
+        
+        Args:
+            features: DataFrame with calculated features
+            current_funding: Dictionary with funding rate data
+            
+        Returns:
+            Signal dictionary with action, side, confidence, etc.
+        """
+        if self.model is None:
+            # Train model if not available
+            if len(features) >= 200:
+                self.train_model(features)
+            else:
+                return {'action': 'hold', 'reason': 'model_not_trained'}
+        
+        if self.model is None:
+            return {'action': 'hold', 'reason': 'insufficient_data_for_training'}
+        
+        # Get latest row
+        latest = features.iloc[-1]
+        z_score = latest['z_score']
+        eth_price = latest['eth_close']
+        btc_price = latest['btc_close']
+        
+        # Prepare features for prediction
+        X = features[self.feature_cols].iloc[[-1]].fillna(0)
+        X = X.replace([np.inf, -np.inf], 0)
+        
+        # Get prediction probability
+        prob = self.model.predict_proba(X)[0, 1]
+        
+        # Apply thresholds
+        z_thresh = self.config.z_entry_threshold
+        prob_thresh = self.config.model_prob_threshold
+        
+        # Determine signal direction
+        signal = {
+            'action': 'hold',
+            'side': None,
+            'probability': prob,
+            'z_score': z_score,
+            'eth_price': eth_price,
+            'btc_price': btc_price,
+            'reason': '',
+        }
+        
+        # Check for entry conditions
+        if prob > prob_thresh:
+            if z_score > z_thresh:
+                # Spread high (ETH expensive relative to BTC) -> Short ETH
+                signal['action'] = 'entry'
+                signal['side'] = 'short'
+                signal['reason'] = f'z_score={z_score:.2f}>threshold, prob={prob:.2f}'
+            elif z_score < -z_thresh:
+                # Spread low (ETH cheap relative to BTC) -> Long ETH
+                signal['action'] = 'entry'
+                signal['side'] = 'long'
+                signal['reason'] = f'z_score={z_score:.2f}<-threshold, prob={prob:.2f}'
+            else:
+                signal['reason'] = f'z_score={z_score:.2f} within threshold'
+        else:
+            signal['reason'] = f'prob={prob:.2f}<threshold'
+        
+        # Apply funding rate filter
+        if signal['action'] == 'entry':
+            btc_funding = current_funding.get('btc_funding', 0)
+            funding_thresh = self.config.funding_threshold
+            
+            if signal['side'] == 'long' and btc_funding > funding_thresh:
+                # High positive funding = overheated, don't go long
+                signal['action'] = 'hold'
+                signal['reason'] = f'funding_filter_blocked_long (funding={btc_funding:.4f})'
+            elif signal['side'] == 'short' and btc_funding < -funding_thresh:
+                # High negative funding = oversold, don't go short
+                signal['action'] = 'hold'
+                signal['reason'] = f'funding_filter_blocked_short (funding={btc_funding:.4f})'
+        
+        # Check for exit conditions (mean reversion complete)
+        if signal['action'] == 'hold':
+            # Z-score crossed back through 0
+            if abs(z_score) < 0.3:
+                signal['action'] = 'check_exit'
+                signal['reason'] = f'z_score_reverted_to_mean ({z_score:.2f})'
+        
+        logger.info(
+            f"Signal: {signal['action']} {signal['side'] or ''} "
+            f"(prob={prob:.2f}, z={z_score:.2f}, reason={signal['reason']})"
+        )
+        
+        return signal
+    
+    def calculate_position_size(
+        self,
+        signal: dict,
+        available_usdt: float
+    ) -> float:
+        """
+        Calculate position size based on signal confidence.
+        
+        Args:
+            signal: Signal dictionary with probability
+            available_usdt: Available USDT balance
+            
+        Returns:
+            Position size in USDT
+        """
+        prob = signal.get('probability', 0.5)
+        
+        # Base size: if max_position_usdt <= 0, use all available funds
+        if self.config.max_position_usdt <= 0:
+            base_size = available_usdt
+        else:
+            base_size = min(available_usdt, self.config.max_position_usdt)
+        
+        # Scale by probability (1.0x at 0.5 prob, up to 1.6x at 0.8 prob)
+        scale = 1.0 + (prob - 0.5) * 2.0
+        scale = max(1.0, min(scale, 2.0))  # Clamp between 1x and 2x
+        
+        size = base_size * scale
+        
+        # Ensure minimum position size
+        if size < self.config.min_position_usdt:
+            return 0.0
+        
+        return min(size, available_usdt * 0.95)  # Leave 5% buffer
+    
+    def calculate_sl_tp(
+        self,
+        entry_price: float,
+        side: str
+    ) -> tuple[float, float]:
+        """
+        Calculate stop-loss and take-profit prices.
+        
+        Args:
+            entry_price: Entry price
+            side: "long" or "short"
+            
+        Returns:
+            Tuple of (stop_loss_price, take_profit_price)
+        """
+        sl_pct = self.config.stop_loss_pct
+        tp_pct = self.config.take_profit_pct
+        
+        if side == "long":
+            stop_loss = entry_price * (1 - sl_pct)
+            take_profit = entry_price * (1 + tp_pct)
+        else:  # short
+            stop_loss = entry_price * (1 + sl_pct)
+            take_profit = entry_price * (1 - tp_pct)
+        
+        return stop_loss, take_profit

live_trading/main.py

@@ -0,0 +1,390 @@
+#!/usr/bin/env python3
+"""
+Live Trading Bot for Regime Reversion Strategy on OKX.
+
+This script runs the regime-based mean reversion strategy
+on ETH perpetual futures using OKX exchange.
+
+Usage:
+    # Run with demo account (default)
+    uv run python -m live_trading.main
+    
+    # Run with specific settings
+    uv run python -m live_trading.main --max-position 500 --leverage 2
+"""
+import argparse
+import logging
+import signal
+import sys
+import time
+from datetime import datetime, timezone
+from pathlib import Path
+
+# Add parent directory to path for imports
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from live_trading.config import get_config, OKXConfig, TradingConfig, PathConfig
+from live_trading.okx_client import OKXClient
+from live_trading.data_feed import DataFeed
+from live_trading.position_manager import PositionManager
+from live_trading.live_regime_strategy import LiveRegimeStrategy
+
+
+def setup_logging(log_dir: Path) -> logging.Logger:
+    """Configure logging for the trading bot."""
+    log_file = log_dir / "live_trading.log"
+    
+    logging.basicConfig(
+        level=logging.INFO,
+        format='%(asctime)s [%(levelname)s] %(name)s: %(message)s',
+        handlers=[
+            logging.FileHandler(log_file),
+            logging.StreamHandler(sys.stdout),
+        ],
+        force=True
+    )
+    
+    return logging.getLogger(__name__)
+
+
+class LiveTradingBot:
+    """
+    Main trading bot orchestrator.
+    
+    Coordinates data fetching, signal generation, and order execution
+    in a continuous loop.
+    """
+    
+    def __init__(
+        self,
+        okx_config: OKXConfig,
+        trading_config: TradingConfig,
+        path_config: PathConfig
+    ):
+        self.okx_config = okx_config
+        self.trading_config = trading_config
+        self.path_config = path_config
+        
+        self.logger = logging.getLogger(__name__)
+        self.running = True
+        
+        # Initialize components
+        self.logger.info("Initializing trading bot components...")
+        
+        self.okx_client = OKXClient(okx_config, trading_config)
+        self.data_feed = DataFeed(self.okx_client, trading_config, path_config)
+        self.position_manager = PositionManager(
+            self.okx_client, trading_config, path_config
+        )
+        self.strategy = LiveRegimeStrategy(trading_config, path_config)
+        
+        # Register signal handlers for graceful shutdown
+        signal.signal(signal.SIGINT, self._handle_shutdown)
+        signal.signal(signal.SIGTERM, self._handle_shutdown)
+        
+        self._print_startup_banner()
+    
+    def _print_startup_banner(self) -> None:
+        """Print startup information."""
+        mode = "DEMO/SANDBOX" if self.okx_config.demo_mode else "LIVE"
+        
+        print("=" * 60)
+        print(f"  Regime Reversion Strategy - Live Trading Bot")
+        print("=" * 60)
+        print(f"  Mode:           {mode}")
+        print(f"  Trading Pair:   {self.trading_config.eth_symbol}")
+        print(f"  Context Pair:   {self.trading_config.btc_symbol}")
+        print(f"  Timeframe:      {self.trading_config.timeframe}")
+        print(f"  Max Position:   ${self.trading_config.max_position_usdt if self.trading_config.max_position_usdt > 0 else 'All available'}")
+        print(f"  Leverage:       {self.trading_config.leverage}x")
+        print(f"  Stop Loss:      {self.trading_config.stop_loss_pct * 100:.1f}%")
+        print(f"  Take Profit:    {self.trading_config.take_profit_pct * 100:.1f}%")
+        print(f"  Cycle Interval: {self.trading_config.sleep_seconds // 60} minutes")
+        print("=" * 60)
+        
+        if not self.okx_config.demo_mode:
+            print("\n  *** WARNING: LIVE TRADING MODE - REAL FUNDS AT RISK ***\n")
+    
+    def _handle_shutdown(self, signum, frame) -> None:
+        """Handle shutdown signals gracefully."""
+        self.logger.info("Shutdown signal received, stopping...")
+        self.running = False
+    
+    def run_trading_cycle(self) -> None:
+        """
+        Execute one trading cycle.
+        
+        1. Fetch latest market data
+        2. Update open positions
+        3. Generate trading signal
+        4. Execute trades if signal triggers
+        """
+        cycle_start = datetime.now(timezone.utc)
+        self.logger.info(f"--- Trading Cycle Start: {cycle_start.isoformat()} ---")
+        
+        try:
+            # 1. Fetch market data
+            features = self.data_feed.get_latest_data()
+            if features is None or features.empty:
+                self.logger.warning("No market data available, skipping cycle")
+                return
+            
+            # Get current prices
+            eth_price = features['eth_close'].iloc[-1]
+            btc_price = features['btc_close'].iloc[-1]
+            
+            current_prices = {
+                self.trading_config.eth_symbol: eth_price,
+                self.trading_config.btc_symbol: btc_price,
+            }
+            
+            # 2. Update existing positions (check SL/TP)
+            closed_trades = self.position_manager.update_positions(current_prices)
+            if closed_trades:
+                for trade in closed_trades:
+                    self.logger.info(
+                        f"Trade closed: {trade['trade_id']} "
+                        f"PnL=${trade['pnl_usd']:.2f} ({trade['reason']})"
+                    )
+            
+            # 3. Sync with exchange positions
+            self.position_manager.sync_with_exchange()
+            
+            # 4. Get current funding rates
+            funding = self.data_feed.get_current_funding_rates()
+            
+            # 5. Generate trading signal
+            signal = self.strategy.generate_signal(features, funding)
+            
+            # 6. Execute trades based on signal
+            if signal['action'] == 'entry':
+                self._execute_entry(signal, eth_price)
+            elif signal['action'] == 'check_exit':
+                self._execute_exit(signal)
+            
+            # 7. Log portfolio summary
+            summary = self.position_manager.get_portfolio_summary()
+            self.logger.info(
+                f"Portfolio: {summary['open_positions']} positions, "
+                f"exposure=${summary['total_exposure_usdt']:.2f}, "
+                f"unrealized_pnl=${summary['total_unrealized_pnl']:.2f}"
+            )
+            
+        except Exception as e:
+            self.logger.error(f"Trading cycle error: {e}", exc_info=True)
+            # Save positions on error
+            self.position_manager.save_positions()
+        
+        cycle_duration = (datetime.now(timezone.utc) - cycle_start).total_seconds()
+        self.logger.info(f"--- Cycle completed in {cycle_duration:.1f}s ---")
+    
+    def _execute_entry(self, signal: dict, current_price: float) -> None:
+        """Execute entry trade."""
+        symbol = self.trading_config.eth_symbol
+        side = signal['side']
+        
+        # Check if we can open a position
+        if not self.position_manager.can_open_position():
+            self.logger.info("Cannot open position: max positions reached")
+            return
+        
+        # Get account balance
+        balance = self.okx_client.get_balance()
+        available_usdt = balance['free']
+        
+        # Calculate position size
+        size_usdt = self.strategy.calculate_position_size(signal, available_usdt)
+        if size_usdt <= 0:
+            self.logger.info("Position size too small, skipping entry")
+            return
+        
+        size_eth = size_usdt / current_price
+        
+        # Calculate SL/TP
+        stop_loss, take_profit = self.strategy.calculate_sl_tp(current_price, side)
+        
+        self.logger.info(
+            f"Executing {side.upper()} entry: {size_eth:.4f} ETH @ {current_price:.2f} "
+            f"(${size_usdt:.2f}), SL={stop_loss:.2f}, TP={take_profit:.2f}"
+        )
+        
+        try:
+            # Place market order
+            order_side = "buy" if side == "long" else "sell"
+            order = self.okx_client.place_market_order(symbol, order_side, size_eth)
+            
+            # Get filled price (handle None values from OKX response)
+            filled_price = order.get('average') or order.get('price') or current_price
+            filled_amount = order.get('filled') or order.get('amount') or size_eth
+            
+            # Ensure we have valid numeric values
+            if filled_price is None or filled_price == 0:
+                self.logger.warning(f"No fill price in order response, using current price: {current_price}")
+                filled_price = current_price
+            if filled_amount is None or filled_amount == 0:
+                self.logger.warning(f"No fill amount in order response, using requested: {size_eth}")
+                filled_amount = size_eth
+            
+            # Recalculate SL/TP with filled price
+            stop_loss, take_profit = self.strategy.calculate_sl_tp(filled_price, side)
+            
+            # Get order ID from response
+            order_id = order.get('id', '')
+            
+            # Record position locally
+            position = self.position_manager.open_position(
+                symbol=symbol,
+                side=side,
+                entry_price=filled_price,
+                size=filled_amount,
+                stop_loss_price=stop_loss,
+                take_profit_price=take_profit,
+                order_id=order_id,
+            )
+            
+            if position:
+                self.logger.info(
+                    f"Position opened: {position.trade_id}, "
+                    f"{filled_amount:.4f} ETH @ {filled_price:.2f}"
+                )
+                
+                # Try to set SL/TP on exchange
+                try:
+                    self.okx_client.set_stop_loss_take_profit(
+                        symbol, side, filled_amount, stop_loss, take_profit
+                    )
+                except Exception as e:
+                    self.logger.warning(f"Could not set SL/TP on exchange: {e}")
+            
+        except Exception as e:
+            self.logger.error(f"Order execution failed: {e}", exc_info=True)
+    
+    def _execute_exit(self, signal: dict) -> None:
+        """Execute exit based on mean reversion signal."""
+        symbol = self.trading_config.eth_symbol
+        
+        # Get position for ETH
+        position = self.position_manager.get_position_for_symbol(symbol)
+        if not position:
+            return
+        
+        current_price = signal.get('eth_price', position.current_price)
+        
+        self.logger.info(
+            f"Mean reversion exit signal: closing {position.trade_id} "
+            f"@ {current_price:.2f}"
+        )
+        
+        try:
+            # Close position on exchange
+            exit_order = self.okx_client.close_position(symbol)
+            exit_order_id = exit_order.get('id', '') if exit_order else ''
+            
+            # Record closure locally
+            self.position_manager.close_position(
+                position.trade_id,
+                current_price,
+                reason="mean_reversion_complete",
+                exit_order_id=exit_order_id,
+            )
+            
+        except Exception as e:
+            self.logger.error(f"Exit execution failed: {e}", exc_info=True)
+    
+    def run(self) -> None:
+        """Main trading loop."""
+        self.logger.info("Starting trading loop...")
+        
+        while self.running:
+            try:
+                self.run_trading_cycle()
+                
+                if self.running:
+                    sleep_seconds = self.trading_config.sleep_seconds
+                    minutes = sleep_seconds // 60
+                    self.logger.info(f"Sleeping for {minutes} minutes...")
+                    
+                    # Sleep in smaller chunks to allow faster shutdown
+                    for _ in range(sleep_seconds):
+                        if not self.running:
+                            break
+                        time.sleep(1)
+                        
+            except KeyboardInterrupt:
+                self.logger.info("Keyboard interrupt received")
+                break
+            except Exception as e:
+                self.logger.error(f"Unexpected error in main loop: {e}", exc_info=True)
+                time.sleep(60)  # Wait before retry
+        
+        # Cleanup
+        self.logger.info("Shutting down...")
+        self.position_manager.save_positions()
+        self.logger.info("Shutdown complete")
+
+
+def parse_args():
+    """Parse command line arguments."""
+    parser = argparse.ArgumentParser(
+        description="Live Trading Bot for Regime Reversion Strategy"
+    )
+    parser.add_argument(
+        "--max-position",
+        type=float,
+        default=None,
+        help="Maximum position size in USDT"
+    )
+    parser.add_argument(
+        "--leverage",
+        type=int,
+        default=None,
+        help="Trading leverage (1-125)"
+    )
+    parser.add_argument(
+        "--interval",
+        type=int,
+        default=None,
+        help="Trading cycle interval in seconds"
+    )
+    parser.add_argument(
+        "--live",
+        action="store_true",
+        help="Use live trading mode (requires OKX_DEMO_MODE=false)"
+    )
+    return parser.parse_args()
+
+
+def main():
+    """Main entry point."""
+    args = parse_args()
+    
+    # Load configuration
+    okx_config, trading_config, path_config = get_config()
+    
+    # Apply command line overrides
+    if args.max_position is not None:
+        trading_config.max_position_usdt = args.max_position
+    if args.leverage is not None:
+        trading_config.leverage = args.leverage
+    if args.interval is not None:
+        trading_config.sleep_seconds = args.interval
+    if args.live:
+        okx_config.demo_mode = False
+    
+    # Setup logging
+    logger = setup_logging(path_config.logs_dir)
+    
+    try:
+        # Create and run bot
+        bot = LiveTradingBot(okx_config, trading_config, path_config)
+        bot.run()
+    except ValueError as e:
+        logger.error(f"Configuration error: {e}")
+        sys.exit(1)
+    except Exception as e:
+        logger.error(f"Fatal error: {e}", exc_info=True)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

live_trading/multi_pair/README.md

@@ -0,0 +1,145 @@
+# Multi-Pair Divergence Live Trading
+
+This module implements live trading for the Multi-Pair Divergence Selection Strategy on OKX perpetual futures.
+
+## Overview
+
+The strategy scans 10 cryptocurrency pairs for spread divergence opportunities:
+
+1. **Pair Universe**: Top 10 assets by market cap (BTC, ETH, SOL, XRP, BNB, DOGE, ADA, AVAX, LINK, DOT)
+2. **Spread Z-Score**: Identifies when pairs are divergent from their historical mean
+3. **Universal ML Model**: Predicts probability of successful mean reversion
+4. **Dynamic Selection**: Trades the pair with highest divergence score
+
+## Prerequisites
+
+Before running live trading, you must train the model via backtesting:
+
+```bash
+uv run python scripts/run_multi_pair_backtest.py
+```
+
+This creates `data/multi_pair_model.pkl` which the live trading bot requires.
+
+## Setup
+
+### 1. API Keys
+
+Same as single-pair trading. Set in `.env`:
+
+```env
+OKX_API_KEY=your_api_key
+OKX_SECRET=your_secret
+OKX_PASSWORD=your_passphrase
+OKX_DEMO_MODE=true  # Use demo for testing
+```
+
+### 2. Dependencies
+
+All dependencies are in `pyproject.toml`. No additional installation needed.
+
+## Usage
+
+### Run with Demo Account (Recommended First)
+
+```bash
+uv run python -m live_trading.multi_pair.main
+```
+
+### Command Line Options
+
+```bash
+# Custom position size
+uv run python -m live_trading.multi_pair.main --max-position 500
+
+# Custom leverage
+uv run python -m live_trading.multi_pair.main --leverage 2
+
+# Custom cycle interval (in seconds)
+uv run python -m live_trading.multi_pair.main --interval 1800
+
+# Combine options
+uv run python -m live_trading.multi_pair.main --max-position 1000 --leverage 3 --interval 3600
+```
+
+### Live Trading (Use with Caution)
+
+```bash
+uv run python -m live_trading.multi_pair.main --live
+```
+
+## How It Works
+
+### Each Trading Cycle
+
+1. **Fetch Data**: Gets OHLCV for all 10 assets from OKX
+2. **Calculate Features**: Computes Z-Score, RSI, volatility for all 45 pair combinations
+3. **Score Pairs**: Uses ML model to rank pairs by divergence score (|Z| x probability)
+4. **Check Exits**: If holding, check mean reversion or SL/TP
+5. **Enter Best**: If no position, enter the highest-scoring divergent pair
+
+### Entry Conditions
+
+- |Z-Score| > 1.0 (spread diverged from mean)
+- ML probability > 0.5 (model predicts successful reversion)
+- Funding rate filter passes (avoid crowded trades)
+
+### Exit Conditions
+
+- Mean reversion: |Z-Score| returns to ~0
+- Stop-loss: ATR-based (default ~6%)
+- Take-profit: ATR-based (default ~5%)
+
+## Strategy Parameters
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `z_entry_threshold` | 1.0 | Enter when \|Z-Score\| > threshold |
+| `z_exit_threshold` | 0.0 | Exit when Z reverts to mean |
+| `z_window` | 24 | Rolling window for Z-Score (hours) |
+| `prob_threshold` | 0.5 | ML probability threshold for entry |
+| `funding_threshold` | 0.0005 | Funding rate filter (0.05%) |
+| `sl_atr_multiplier` | 10.0 | Stop-loss as ATR multiple |
+| `tp_atr_multiplier` | 8.0 | Take-profit as ATR multiple |
+
+## Files
+
+### Input
+
+- `data/multi_pair_model.pkl` - Pre-trained ML model (required)
+
+### Output
+
+- `logs/multi_pair_live.log` - Trading logs
+- `live_trading/multi_pair_positions.json` - Position persistence
+- `live_trading/multi_pair_trade_log.csv` - Trade history
+
+## Architecture
+
+```
+live_trading/multi_pair/
+    __init__.py          # Module exports
+    config.py            # Configuration classes
+    data_feed.py         # Multi-asset OHLCV fetcher
+    strategy.py          # ML scoring and signal generation
+    main.py              # Bot orchestrator
+    README.md            # This file
+```
+
+## Differences from Single-Pair
+
+| Aspect | Single-Pair | Multi-Pair |
+|--------|-------------|------------|
+| Assets | ETH only (BTC context) | 10 assets, 45 pairs |
+| Model | ETH-specific | Universal across pairs |
+| Selection | Fixed pair | Dynamic best pair |
+| Stops | Fixed 6%/5% | ATR-based dynamic |
+
+## Risk Warning
+
+This is experimental trading software. Use at your own risk:
+
+- Always start with demo trading
+- Never risk more than you can afford to lose
+- Monitor the bot regularly
+- The model was trained on historical data and may not predict future performance

live_trading/multi_pair/__init__.py

@@ -0,0 +1,11 @@
+"""Multi-Pair Divergence Live Trading Module."""
+from .config import MultiPairLiveConfig, get_multi_pair_config
+from .data_feed import MultiPairDataFeed
+from .strategy import LiveMultiPairStrategy
+
+__all__ = [
+    "MultiPairLiveConfig",
+    "get_multi_pair_config",
+    "MultiPairDataFeed",
+    "LiveMultiPairStrategy",
+]

live_trading/multi_pair/config.py

@@ -0,0 +1,145 @@
+"""
+Configuration for Multi-Pair Live Trading.
+
+Extends the base live trading config with multi-pair specific settings.
+"""
+import os
+from pathlib import Path
+from dataclasses import dataclass, field
+from dotenv import load_dotenv
+
+load_dotenv()
+
+
+@dataclass
+class OKXConfig:
+    """OKX API configuration."""
+    api_key: str = field(default_factory=lambda: "")
+    secret: str = field(default_factory=lambda: "")
+    password: str = field(default_factory=lambda: "")
+    demo_mode: bool = field(default_factory=lambda: True)
+    
+    def __post_init__(self):
+        """Load credentials based on demo mode setting."""
+        self.demo_mode = os.getenv("OKX_DEMO_MODE", "true").lower() in ("true", "1", "yes")
+        
+        if self.demo_mode:
+            self.api_key = os.getenv("OKX_DEMO_API_KEY", os.getenv("OKX_API_KEY", ""))
+            self.secret = os.getenv("OKX_DEMO_SECRET", os.getenv("OKX_SECRET", ""))
+            self.password = os.getenv("OKX_DEMO_PASSWORD", os.getenv("OKX_PASSWORD", ""))
+        else:
+            self.api_key = os.getenv("OKX_API_KEY", "")
+            self.secret = os.getenv("OKX_SECRET", "")
+            self.password = os.getenv("OKX_PASSWORD", "")
+    
+    def validate(self) -> None:
+        """Validate that required credentials are present."""
+        mode = "demo" if self.demo_mode else "live"
+        if not self.api_key:
+            raise ValueError(f"OKX API key not set for {mode} mode")
+        if not self.secret:
+            raise ValueError(f"OKX secret not set for {mode} mode")
+        if not self.password:
+            raise ValueError(f"OKX password not set for {mode} mode")
+
+
+@dataclass
+class MultiPairLiveConfig:
+    """
+    Configuration for multi-pair live trading.
+    
+    Combines trading parameters, strategy settings, and risk management.
+    """
+    # Asset Universe (top 10 by market cap perpetuals)
+    assets: list[str] = field(default_factory=lambda: [
+        "BTC/USDT:USDT", "ETH/USDT:USDT", "SOL/USDT:USDT", "XRP/USDT:USDT",
+        "BNB/USDT:USDT", "DOGE/USDT:USDT", "ADA/USDT:USDT", "AVAX/USDT:USDT",
+        "LINK/USDT:USDT", "DOT/USDT:USDT"
+    ])
+    
+    # Timeframe
+    timeframe: str = "1h"
+    candles_to_fetch: int = 500  # Enough for feature calculation
+    
+    # Z-Score Thresholds
+    z_window: int = 24
+    z_entry_threshold: float = 1.0
+    z_exit_threshold: float = 0.0  # Exit at mean reversion
+    
+    # ML Thresholds
+    prob_threshold: float = 0.5
+    
+    # Position sizing
+    max_position_usdt: float = -1.0  # If <= 0, use all available funds
+    min_position_usdt: float = 10.0
+    leverage: int = 1
+    margin_mode: str = "cross"
+    max_concurrent_positions: int = 1  # Trade one pair at a time
+    
+    # Risk Management - ATR-Based Stops
+    atr_period: int = 14
+    sl_atr_multiplier: float = 10.0
+    tp_atr_multiplier: float = 8.0
+    
+    # Fallback fixed percentages
+    base_sl_pct: float = 0.06
+    base_tp_pct: float = 0.05
+    
+    # ATR bounds
+    min_sl_pct: float = 0.02
+    max_sl_pct: float = 0.10
+    min_tp_pct: float = 0.02
+    max_tp_pct: float = 0.15
+    
+    # Funding Rate Filter
+    funding_threshold: float = 0.0005  # 0.05%
+    
+    # Trade Management
+    min_hold_bars: int = 0
+    cooldown_bars: int = 0
+    
+    # Execution
+    sleep_seconds: int = 3600  # Run every hour
+    slippage_pct: float = 0.001
+    
+    def get_asset_short_name(self, symbol: str) -> str:
+        """Convert symbol to short name (e.g., BTC/USDT:USDT -> btc)."""
+        return symbol.split("/")[0].lower()
+    
+    def get_pair_count(self) -> int:
+        """Calculate number of unique pairs from asset list."""
+        n = len(self.assets)
+        return n * (n - 1) // 2
+
+
+@dataclass
+class PathConfig:
+    """File paths configuration."""
+    base_dir: Path = field(
+        default_factory=lambda: Path(__file__).parent.parent.parent
+    )
+    data_dir: Path = field(default=None)
+    logs_dir: Path = field(default=None)
+    model_path: Path = field(default=None)
+    positions_file: Path = field(default=None)
+    trade_log_file: Path = field(default=None)
+    
+    def __post_init__(self):
+        self.data_dir = self.base_dir / "data"
+        self.logs_dir = self.base_dir / "logs"
+        # Use the same model as backtesting
+        self.model_path = self.base_dir / "data" / "multi_pair_model.pkl"
+        self.positions_file = self.base_dir / "live_trading" / "multi_pair_positions.json"
+        self.trade_log_file = self.base_dir / "live_trading" / "multi_pair_trade_log.csv"
+        
+        # Ensure directories exist
+        self.data_dir.mkdir(parents=True, exist_ok=True)
+        self.logs_dir.mkdir(parents=True, exist_ok=True)
+
+
+def get_multi_pair_config() -> tuple[OKXConfig, MultiPairLiveConfig, PathConfig]:
+    """Get all configuration objects for multi-pair trading."""
+    okx = OKXConfig()
+    trading = MultiPairLiveConfig()
+    paths = PathConfig()
+    return okx, trading, paths

live_trading/multi_pair/data_feed.py

@@ -0,0 +1,336 @@
+"""
+Multi-Pair Data Feed for Live Trading.
+
+Fetches real-time OHLCV and funding data for all assets in the universe.
+"""
+import logging
+from itertools import combinations
+
+import pandas as pd
+import numpy as np
+import ta
+
+from live_trading.okx_client import OKXClient
+from .config import MultiPairLiveConfig, PathConfig
+
+logger = logging.getLogger(__name__)
+
+
+class TradingPair:
+    """
+    Represents a tradeable pair for spread analysis.
+    
+    Attributes:
+        base_asset: First asset symbol (e.g., ETH/USDT:USDT)
+        quote_asset: Second asset symbol (e.g., BTC/USDT:USDT)
+        pair_id: Unique identifier
+    """
+    def __init__(self, base_asset: str, quote_asset: str):
+        self.base_asset = base_asset
+        self.quote_asset = quote_asset
+        self.pair_id = f"{base_asset}__{quote_asset}"
+    
+    @property
+    def name(self) -> str:
+        """Human-readable pair name."""
+        base = self.base_asset.split("/")[0]
+        quote = self.quote_asset.split("/")[0]
+        return f"{base}/{quote}"
+    
+    def __hash__(self):
+        return hash(self.pair_id)
+    
+    def __eq__(self, other):
+        if not isinstance(other, TradingPair):
+            return False
+        return self.pair_id == other.pair_id
+
+
+class MultiPairDataFeed:
+    """
+    Real-time data feed for multi-pair strategy.
+    
+    Fetches OHLCV data for all assets and calculates spread features
+    for all pair combinations.
+    """
+    
+    def __init__(
+        self,
+        okx_client: OKXClient,
+        config: MultiPairLiveConfig,
+        path_config: PathConfig
+    ):
+        self.client = okx_client
+        self.config = config
+        self.paths = path_config
+        
+        # Cache for asset data
+        self._asset_data: dict[str, pd.DataFrame] = {}
+        self._funding_rates: dict[str, float] = {}
+        self._pairs: list[TradingPair] = []
+        
+        # Generate pairs
+        self._generate_pairs()
+    
+    def _generate_pairs(self) -> None:
+        """Generate all unique pairs from asset universe."""
+        self._pairs = []
+        for base, quote in combinations(self.config.assets, 2):
+            pair = TradingPair(base_asset=base, quote_asset=quote)
+            self._pairs.append(pair)
+        
+        logger.info("Generated %d pairs from %d assets", 
+                   len(self._pairs), len(self.config.assets))
+    
+    @property
+    def pairs(self) -> list[TradingPair]:
+        """Get list of trading pairs."""
+        return self._pairs
+    
+    def fetch_all_ohlcv(self) -> dict[str, pd.DataFrame]:
+        """
+        Fetch OHLCV data for all assets.
+        
+        Returns:
+            Dictionary mapping symbol to OHLCV DataFrame
+        """
+        self._asset_data = {}
+        
+        for symbol in self.config.assets:
+            try:
+                ohlcv = self.client.fetch_ohlcv(
+                    symbol,
+                    self.config.timeframe,
+                    self.config.candles_to_fetch
+                )
+                df = self._ohlcv_to_dataframe(ohlcv)
+                
+                if len(df) >= 200:
+                    self._asset_data[symbol] = df
+                    logger.debug("Fetched %s: %d candles", symbol, len(df))
+                else:
+                    logger.warning("Skipping %s: insufficient data (%d)", 
+                                 symbol, len(df))
+            except Exception as e:
+                logger.error("Error fetching %s: %s", symbol, e)
+        
+        logger.info("Fetched data for %d/%d assets", 
+                   len(self._asset_data), len(self.config.assets))
+        return self._asset_data
+    
+    def _ohlcv_to_dataframe(self, ohlcv: list) -> pd.DataFrame:
+        """Convert OHLCV list to DataFrame."""
+        df = pd.DataFrame(
+            ohlcv,
+            columns=['timestamp', 'open', 'high', 'low', 'close', 'volume']
+        )
+        df['timestamp'] = pd.to_datetime(df['timestamp'], unit='ms', utc=True)
+        df.set_index('timestamp', inplace=True)
+        return df
+    
+    def fetch_all_funding_rates(self) -> dict[str, float]:
+        """
+        Fetch current funding rates for all assets.
+        
+        Returns:
+            Dictionary mapping symbol to funding rate
+        """
+        self._funding_rates = {}
+        
+        for symbol in self.config.assets:
+            try:
+                rate = self.client.get_funding_rate(symbol)
+                self._funding_rates[symbol] = rate
+            except Exception as e:
+                logger.warning("Could not get funding for %s: %s", symbol, e)
+                self._funding_rates[symbol] = 0.0
+        
+        return self._funding_rates
+    
+    def calculate_pair_features(
+        self,
+        pair: TradingPair
+    ) -> pd.DataFrame | None:
+        """
+        Calculate features for a single pair.
+        
+        Args:
+            pair: Trading pair
+            
+        Returns:
+            DataFrame with features, or None if insufficient data
+        """
+        base = pair.base_asset
+        quote = pair.quote_asset
+        
+        if base not in self._asset_data or quote not in self._asset_data:
+            return None
+        
+        df_base = self._asset_data[base]
+        df_quote = self._asset_data[quote]
+        
+        # Align indices
+        common_idx = df_base.index.intersection(df_quote.index)
+        if len(common_idx) < 200:
+            return None
+        
+        df_a = df_base.loc[common_idx]
+        df_b = df_quote.loc[common_idx]
+        
+        # Calculate spread (base / quote)
+        spread = df_a['close'] / df_b['close']
+        
+        # Z-Score
+        z_window = self.config.z_window
+        rolling_mean = spread.rolling(window=z_window).mean()
+        rolling_std = spread.rolling(window=z_window).std()
+        z_score = (spread - rolling_mean) / rolling_std
+        
+        # Spread Technicals
+        spread_rsi = ta.momentum.RSIIndicator(spread, window=14).rsi()
+        spread_roc = spread.pct_change(periods=5) * 100
+        spread_change_1h = spread.pct_change(periods=1)
+        
+        # Volume Analysis
+        vol_ratio = df_a['volume'] / (df_b['volume'] + 1e-10)
+        vol_ratio_ma = vol_ratio.rolling(window=12).mean()
+        vol_ratio_rel = vol_ratio / (vol_ratio_ma + 1e-10)
+        
+        # Volatility
+        ret_a = df_a['close'].pct_change()
+        ret_b = df_b['close'].pct_change()
+        vol_a = ret_a.rolling(window=z_window).std()
+        vol_b = ret_b.rolling(window=z_window).std()
+        vol_spread_ratio = vol_a / (vol_b + 1e-10)
+        
+        # Realized Volatility
+        realized_vol_a = ret_a.rolling(window=24).std()
+        realized_vol_b = ret_b.rolling(window=24).std()
+        
+        # ATR (Average True Range)
+        high_a, low_a, close_a = df_a['high'], df_a['low'], df_a['close']
+        
+        tr_a = pd.concat([
+            high_a - low_a,
+            (high_a - close_a.shift(1)).abs(),
+            (low_a - close_a.shift(1)).abs()
+        ], axis=1).max(axis=1)
+        atr_a = tr_a.rolling(window=self.config.atr_period).mean()
+        atr_pct_a = atr_a / close_a
+        
+        # Build feature DataFrame
+        features = pd.DataFrame(index=common_idx)
+        features['pair_id'] = pair.pair_id
+        features['base_asset'] = base
+        features['quote_asset'] = quote
+        
+        # Price data
+        features['spread'] = spread
+        features['base_close'] = df_a['close']
+        features['quote_close'] = df_b['close']
+        features['base_volume'] = df_a['volume']
+        
+        # Core Features
+        features['z_score'] = z_score
+        features['spread_rsi'] = spread_rsi
+        features['spread_roc'] = spread_roc
+        features['spread_change_1h'] = spread_change_1h
+        features['vol_ratio'] = vol_ratio
+        features['vol_ratio_rel'] = vol_ratio_rel
+        features['vol_diff_ratio'] = vol_spread_ratio
+        
+        # Volatility
+        features['realized_vol_base'] = realized_vol_a
+        features['realized_vol_quote'] = realized_vol_b
+        features['realized_vol_avg'] = (realized_vol_a + realized_vol_b) / 2
+        
+        # ATR
+        features['atr_base'] = atr_a
+        features['atr_pct_base'] = atr_pct_a
+        
+        # Pair encoding
+        assets = self.config.assets
+        features['base_idx'] = assets.index(base) if base in assets else -1
+        features['quote_idx'] = assets.index(quote) if quote in assets else -1
+        
+        # Funding rates
+        base_funding = self._funding_rates.get(base, 0.0)
+        quote_funding = self._funding_rates.get(quote, 0.0)
+        features['base_funding'] = base_funding
+        features['quote_funding'] = quote_funding
+        features['funding_diff'] = base_funding - quote_funding
+        features['funding_avg'] = (base_funding + quote_funding) / 2
+        
+        # Drop NaN rows in core features
+        core_cols = [
+            'z_score', 'spread_rsi', 'spread_roc', 'spread_change_1h',
+            'vol_ratio', 'vol_ratio_rel', 'vol_diff_ratio',
+            'realized_vol_base', 'atr_base', 'atr_pct_base'
+        ]
+        features = features.dropna(subset=core_cols)
+        
+        return features
+    
+    def calculate_all_pair_features(self) -> dict[str, pd.DataFrame]:
+        """
+        Calculate features for all pairs.
+        
+        Returns:
+            Dictionary mapping pair_id to feature DataFrame
+        """
+        all_features = {}
+        
+        for pair in self._pairs:
+            features = self.calculate_pair_features(pair)
+            if features is not None and len(features) > 0:
+                all_features[pair.pair_id] = features
+        
+        logger.info("Calculated features for %d/%d pairs",
+                   len(all_features), len(self._pairs))
+        
+        return all_features
+    
+    def get_latest_data(self) -> dict[str, pd.DataFrame] | None:
+        """
+        Fetch and process latest market data for all pairs.
+        
+        Returns:
+            Dictionary of pair features or None on error
+        """
+        try:
+            # Fetch OHLCV for all assets
+            self.fetch_all_ohlcv()
+            
+            if len(self._asset_data) < 2:
+                logger.warning("Insufficient assets fetched")
+                return None
+            
+            # Fetch funding rates
+            self.fetch_all_funding_rates()
+            
+            # Calculate features for all pairs
+            pair_features = self.calculate_all_pair_features()
+            
+            if not pair_features:
+                logger.warning("No pair features calculated")
+                return None
+            
+            logger.info("Processed %d pairs with valid features", len(pair_features))
+            return pair_features
+            
+        except Exception as e:
+            logger.error("Error fetching market data: %s", e, exc_info=True)
+            return None
+    
+    def get_pair_by_id(self, pair_id: str) -> TradingPair | None:
+        """Get pair object by ID."""
+        for pair in self._pairs:
+            if pair.pair_id == pair_id:
+                return pair
+        return None
+    
+    def get_current_price(self, symbol: str) -> float | None:
+        """Get current price for a symbol."""
+        if symbol in self._asset_data:
+            return self._asset_data[symbol]['close'].iloc[-1]
+        return None

live_trading/multi_pair/main.py

@@ -0,0 +1,609 @@
+#!/usr/bin/env python3
+"""
+Multi-Pair Divergence Live Trading Bot.
+
+Trades the top 10 cryptocurrency pairs based on spread divergence
+using a universal ML model for signal generation.
+
+Usage:
+    # Run with demo account (default)
+    uv run python -m live_trading.multi_pair.main
+    
+    # Run with specific settings
+    uv run python -m live_trading.multi_pair.main --max-position 500 --leverage 2
+"""
+import argparse
+import logging
+import signal
+import sys
+import time
+from dataclasses import dataclass
+from datetime import datetime, timezone
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).parent.parent.parent))
+
+from live_trading.okx_client import OKXClient
+from live_trading.position_manager import PositionManager
+from live_trading.multi_pair.config import (
+    OKXConfig, MultiPairLiveConfig, PathConfig, get_multi_pair_config
+)
+from live_trading.multi_pair.data_feed import MultiPairDataFeed, TradingPair
+from live_trading.multi_pair.strategy import LiveMultiPairStrategy
+
+
+def setup_logging(log_dir: Path) -> logging.Logger:
+    """Configure logging for the trading bot."""
+    log_file = log_dir / "multi_pair_live.log"
+    
+    logging.basicConfig(
+        level=logging.INFO,
+        format='%(asctime)s [%(levelname)s] %(name)s: %(message)s',
+        handlers=[
+            logging.FileHandler(log_file),
+            logging.StreamHandler(sys.stdout),
+        ],
+        force=True
+    )
+    
+    return logging.getLogger(__name__)
+
+
+@dataclass
+class PositionState:
+    """Track current position state for multi-pair."""
+    pair: TradingPair | None = None
+    pair_id: str | None = None
+    direction: str | None = None
+    entry_price: float = 0.0
+    size: float = 0.0
+    stop_loss: float = 0.0
+    take_profit: float = 0.0
+    entry_time: datetime | None = None
+
+
+class MultiPairLiveTradingBot:
+    """
+    Main trading bot for multi-pair divergence strategy.
+    
+    Coordinates data fetching, pair scoring, and order execution.
+    """
+    
+    def __init__(
+        self,
+        okx_config: OKXConfig,
+        trading_config: MultiPairLiveConfig,
+        path_config: PathConfig
+    ):
+        self.okx_config = okx_config
+        self.trading_config = trading_config
+        self.path_config = path_config
+        
+        self.logger = logging.getLogger(__name__)
+        self.running = True
+        
+        # Initialize components
+        self.logger.info("Initializing multi-pair trading bot...")
+        
+        # Create OKX client with adapted config
+        self._adapted_trading_config = self._adapt_config_for_okx_client()
+        self.okx_client = OKXClient(okx_config, self._adapted_trading_config)
+        
+        # Initialize data feed
+        self.data_feed = MultiPairDataFeed(
+            self.okx_client, trading_config, path_config
+        )
+        
+        # Initialize position manager (reuse from single-pair)
+        self.position_manager = PositionManager(
+            self.okx_client, self._adapted_trading_config, path_config
+        )
+        
+        # Initialize strategy
+        self.strategy = LiveMultiPairStrategy(trading_config, path_config)
+        
+        # Current position state
+        self.position = PositionState()
+        
+        # Register signal handlers
+        signal.signal(signal.SIGINT, self._handle_shutdown)
+        signal.signal(signal.SIGTERM, self._handle_shutdown)
+        
+        self._print_startup_banner()
+        
+        # Sync with exchange positions on startup
+        self._sync_position_from_exchange()
+    
+    def _adapt_config_for_okx_client(self):
+        """Create config compatible with OKXClient."""
+        # OKXClient expects specific attributes
+        @dataclass
+        class AdaptedConfig:
+            eth_symbol: str = "ETH/USDT:USDT"
+            btc_symbol: str = "BTC/USDT:USDT"
+            timeframe: str = "1h"
+            candles_to_fetch: int = 500
+            max_position_usdt: float = -1.0
+            min_position_usdt: float = 10.0
+            leverage: int = 1
+            margin_mode: str = "cross"
+            stop_loss_pct: float = 0.06
+            take_profit_pct: float = 0.05
+            max_concurrent_positions: int = 1
+            z_entry_threshold: float = 1.0
+            z_window: int = 24
+            model_prob_threshold: float = 0.5
+            funding_threshold: float = 0.0005
+            sleep_seconds: int = 3600
+            slippage_pct: float = 0.001
+        
+        adapted = AdaptedConfig()
+        adapted.timeframe = self.trading_config.timeframe
+        adapted.candles_to_fetch = self.trading_config.candles_to_fetch
+        adapted.max_position_usdt = self.trading_config.max_position_usdt
+        adapted.min_position_usdt = self.trading_config.min_position_usdt
+        adapted.leverage = self.trading_config.leverage
+        adapted.margin_mode = self.trading_config.margin_mode
+        adapted.max_concurrent_positions = self.trading_config.max_concurrent_positions
+        adapted.sleep_seconds = self.trading_config.sleep_seconds
+        adapted.slippage_pct = self.trading_config.slippage_pct
+        
+        return adapted
+    
+    def _print_startup_banner(self) -> None:
+        """Print startup information."""
+        mode = "DEMO/SANDBOX" if self.okx_config.demo_mode else "LIVE"
+        
+        print("=" * 60)
+        print("  Multi-Pair Divergence Strategy - Live Trading Bot")
+        print("=" * 60)
+        print(f"  Mode:           {mode}")
+        print(f"  Assets:         {len(self.trading_config.assets)} assets")
+        print(f"  Pairs:          {self.trading_config.get_pair_count()} pairs")
+        print(f"  Timeframe:      {self.trading_config.timeframe}")
+        print(f"  Max Position:   ${self.trading_config.max_position_usdt if self.trading_config.max_position_usdt > 0 else 'All available'}")
+        print(f"  Leverage:       {self.trading_config.leverage}x")
+        print(f"  Z-Entry:        > {self.trading_config.z_entry_threshold}")
+        print(f"  Prob Threshold: > {self.trading_config.prob_threshold}")
+        print(f"  Cycle Interval: {self.trading_config.sleep_seconds // 60} minutes")
+        print("=" * 60)
+        print(f"  Assets: {', '.join([a.split('/')[0] for a in self.trading_config.assets])}")
+        print("=" * 60)
+        
+        if not self.okx_config.demo_mode:
+            print("\n  *** WARNING: LIVE TRADING MODE - REAL FUNDS AT RISK ***\n")
+    
+    def _handle_shutdown(self, signum, frame) -> None:
+        """Handle shutdown signals gracefully."""
+        self.logger.info("Shutdown signal received, stopping...")
+        self.running = False
+    
+    def _sync_position_from_exchange(self) -> bool:
+        """
+        Sync internal position state with exchange positions.
+        
+        Checks for existing open positions on the exchange and updates
+        internal state to match. This prevents stacking positions when
+        the bot is restarted.
+        
+        Returns:
+            True if a position was synced, False otherwise
+        """
+        try:
+            positions = self.okx_client.get_positions()
+            
+            if not positions:
+                if self.position.pair is not None:
+                    # Position was closed externally (e.g., SL/TP hit)
+                    self.logger.info(
+                        "Position %s was closed externally, resetting state",
+                        self.position.pair.name if self.position.pair else "unknown"
+                    )
+                    self.position = PositionState()
+                return False
+            
+            # Check each position against our tradeable assets
+            our_assets = set(self.trading_config.assets)
+            
+            for pos in positions:
+                pos_symbol = pos.get('symbol', '')
+                contracts = abs(float(pos.get('contracts', 0)))
+                
+                if contracts == 0:
+                    continue
+                
+                # Check if this position is for one of our assets
+                if pos_symbol not in our_assets:
+                    continue
+                
+                # Found a position for one of our assets
+                side = pos.get('side', 'long')
+                entry_price = float(pos.get('entryPrice', 0))
+                unrealized_pnl = float(pos.get('unrealizedPnl', 0))
+                
+                # If we already track this position, just update
+                if (self.position.pair is not None and 
+                    self.position.pair.base_asset == pos_symbol):
+                    self.logger.debug(
+                        "Position already tracked: %s %s %.2f contracts",
+                        side, pos_symbol, contracts
+                    )
+                    return True
+                
+                # New position found - sync it
+                # Find or create a TradingPair for this position
+                matched_pair = None
+                for pair in self.data_feed.pairs:
+                    if pair.base_asset == pos_symbol:
+                        matched_pair = pair
+                        break
+                
+                if matched_pair is None:
+                    # Create a placeholder pair (we don't know the quote asset)
+                    matched_pair = TradingPair(
+                        base_asset=pos_symbol,
+                        quote_asset="UNKNOWN"
+                    )
+                
+                # Calculate approximate SL/TP based on config defaults
+                sl_pct = self.trading_config.base_sl_pct
+                tp_pct = self.trading_config.base_tp_pct
+                
+                if side == 'long':
+                    stop_loss = entry_price * (1 - sl_pct)
+                    take_profit = entry_price * (1 + tp_pct)
+                else:
+                    stop_loss = entry_price * (1 + sl_pct)
+                    take_profit = entry_price * (1 - tp_pct)
+                
+                self.position = PositionState(
+                    pair=matched_pair,
+                    pair_id=matched_pair.pair_id,
+                    direction=side,
+                    entry_price=entry_price,
+                    size=contracts,
+                    stop_loss=stop_loss,
+                    take_profit=take_profit,
+                    entry_time=None  # Unknown for synced positions
+                )
+                
+                self.logger.info(
+                    "Synced existing position from exchange: %s %s %.4f @ %.4f (PnL: %.2f)",
+                    side.upper(),
+                    pos_symbol,
+                    contracts,
+                    entry_price,
+                    unrealized_pnl
+                )
+                return True
+            
+            # No matching positions found
+            if self.position.pair is not None:
+                self.logger.info(
+                    "Position %s no longer exists on exchange, resetting state",
+                    self.position.pair.name
+                )
+                self.position = PositionState()
+            
+            return False
+            
+        except Exception as e:
+            self.logger.error("Failed to sync position from exchange: %s", e)
+            return False
+    
+    def run_trading_cycle(self) -> None:
+        """
+        Execute one trading cycle.
+        
+        1. Sync position state with exchange
+        2. Fetch latest market data for all assets
+        3. Calculate features for all pairs
+        4. Score pairs and find best opportunity
+        5. Check exit conditions for current position
+        6. Execute trades if needed
+        """
+        cycle_start = datetime.now(timezone.utc)
+        self.logger.info("--- Trading Cycle Start: %s ---", cycle_start.isoformat())
+        
+        try:
+            # 1. Sync position state with exchange (detect SL/TP closures)
+            self._sync_position_from_exchange()
+            
+            # 2. Fetch all market data
+            pair_features = self.data_feed.get_latest_data()
+            if pair_features is None:
+                self.logger.warning("No market data available, skipping cycle")
+                return
+            
+            # 2. Check exit conditions for current position
+            if self.position.pair is not None:
+                exit_signal = self.strategy.check_exit_signal(
+                    pair_features,
+                    self.position.pair_id
+                )
+                
+                if exit_signal['action'] == 'exit':
+                    self._execute_exit(exit_signal)
+                else:
+                    # Check SL/TP
+                    current_price = self.data_feed.get_current_price(
+                        self.position.pair.base_asset
+                    )
+                    if current_price:
+                        sl_tp_exit = self._check_sl_tp(current_price)
+                        if sl_tp_exit:
+                            self._execute_exit({'reason': sl_tp_exit})
+            
+            # 3. Generate entry signal if no position
+            if self.position.pair is None:
+                entry_signal = self.strategy.generate_signal(
+                    pair_features,
+                    self.data_feed.pairs
+                )
+                
+                if entry_signal['action'] == 'entry':
+                    self._execute_entry(entry_signal)
+            
+            # 4. Log status
+            if self.position.pair:
+                self.logger.info(
+                    "Position: %s %s, entry=%.4f, current PnL check pending",
+                    self.position.direction,
+                    self.position.pair.name,
+                    self.position.entry_price
+                )
+            else:
+                self.logger.info("No open position")
+            
+        except Exception as e:
+            self.logger.error("Trading cycle error: %s", e, exc_info=True)
+        
+        cycle_duration = (datetime.now(timezone.utc) - cycle_start).total_seconds()
+        self.logger.info("--- Cycle completed in %.1fs ---", cycle_duration)
+    
+    def _check_sl_tp(self, current_price: float) -> str | None:
+        """Check stop-loss and take-profit levels."""
+        if self.position.direction == 'long':
+            if current_price <= self.position.stop_loss:
+                return f"stop_loss ({current_price:.4f} <= {self.position.stop_loss:.4f})"
+            if current_price >= self.position.take_profit:
+                return f"take_profit ({current_price:.4f} >= {self.position.take_profit:.4f})"
+        else:  # short
+            if current_price >= self.position.stop_loss:
+                return f"stop_loss ({current_price:.4f} >= {self.position.stop_loss:.4f})"
+            if current_price <= self.position.take_profit:
+                return f"take_profit ({current_price:.4f} <= {self.position.take_profit:.4f})"
+        return None
+    
+    def _execute_entry(self, signal: dict) -> None:
+        """Execute entry trade."""
+        pair = signal['pair']
+        symbol = pair.base_asset  # Trade the base asset
+        direction = signal['direction']
+        
+        self.logger.info(
+            "Entry signal: %s %s (z=%.2f, p=%.2f, score=%.3f)",
+            direction.upper(),
+            pair.name,
+            signal['z_score'],
+            signal['probability'],
+            signal['divergence_score']
+        )
+        
+        # Get account balance
+        try:
+            balance = self.okx_client.get_balance()
+            available_usdt = balance['free']
+        except Exception as e:
+            self.logger.error("Could not get balance: %s", e)
+            return
+        
+        # Calculate position size
+        size_usdt = self.strategy.calculate_position_size(
+            signal['divergence_score'],
+            available_usdt
+        )
+        
+        if size_usdt <= 0:
+            self.logger.info("Position size too small, skipping entry")
+            return
+        
+        current_price = signal['base_price']
+        size_asset = size_usdt / current_price
+        
+        # Calculate SL/TP
+        stop_loss, take_profit = self.strategy.calculate_sl_tp(
+            current_price,
+            direction,
+            signal['atr'],
+            signal['atr_pct']
+        )
+        
+        self.logger.info(
+            "Executing %s entry: %.6f %s @ %.4f ($%.2f), SL=%.4f, TP=%.4f",
+            direction.upper(),
+            size_asset,
+            symbol.split('/')[0],
+            current_price,
+            size_usdt,
+            stop_loss,
+            take_profit
+        )
+        
+        try:
+            # Place market order
+            order_side = "buy" if direction == "long" else "sell"
+            order = self.okx_client.place_market_order(symbol, order_side, size_asset)
+            
+            filled_price = order.get('average') or order.get('price') or current_price
+            filled_amount = order.get('filled') or order.get('amount') or size_asset
+            
+            if filled_price is None or filled_price == 0:
+                filled_price = current_price
+            if filled_amount is None or filled_amount == 0:
+                filled_amount = size_asset
+            
+            # Recalculate SL/TP with filled price
+            stop_loss, take_profit = self.strategy.calculate_sl_tp(
+                filled_price, direction, signal['atr'], signal['atr_pct']
+            )
+            
+            # Update position state
+            self.position = PositionState(
+                pair=pair,
+                pair_id=pair.pair_id,
+                direction=direction,
+                entry_price=filled_price,
+                size=filled_amount,
+                stop_loss=stop_loss,
+                take_profit=take_profit,
+                entry_time=datetime.now(timezone.utc)
+            )
+            
+            self.logger.info(
+                "Position opened: %s %s %.6f @ %.4f",
+                direction.upper(),
+                pair.name,
+                filled_amount,
+                filled_price
+            )
+            
+            # Try to set SL/TP on exchange
+            try:
+                self.okx_client.set_stop_loss_take_profit(
+                    symbol, direction, filled_amount, stop_loss, take_profit
+                )
+            except Exception as e:
+                self.logger.warning("Could not set SL/TP on exchange: %s", e)
+            
+        except Exception as e:
+            self.logger.error("Order execution failed: %s", e, exc_info=True)
+    
+    def _execute_exit(self, signal: dict) -> None:
+        """Execute exit trade."""
+        if self.position.pair is None:
+            return
+        
+        symbol = self.position.pair.base_asset
+        reason = signal.get('reason', 'unknown')
+        
+        self.logger.info(
+            "Exit signal: %s %s, reason: %s",
+            self.position.direction,
+            self.position.pair.name,
+            reason
+        )
+        
+        try:
+            # Close position on exchange
+            self.okx_client.close_position(symbol)
+            
+            self.logger.info(
+                "Position closed: %s %s",
+                self.position.direction,
+                self.position.pair.name
+            )
+            
+            # Reset position state
+            self.position = PositionState()
+            
+        except Exception as e:
+            self.logger.error("Exit execution failed: %s", e, exc_info=True)
+    
+    def run(self) -> None:
+        """Main trading loop."""
+        self.logger.info("Starting multi-pair trading loop...")
+        
+        while self.running:
+            try:
+                self.run_trading_cycle()
+                
+                if self.running:
+                    sleep_seconds = self.trading_config.sleep_seconds
+                    minutes = sleep_seconds // 60
+                    self.logger.info("Sleeping for %d minutes...", minutes)
+                    
+                    for _ in range(sleep_seconds):
+                        if not self.running:
+                            break
+                        time.sleep(1)
+                        
+            except KeyboardInterrupt:
+                self.logger.info("Keyboard interrupt received")
+                break
+            except Exception as e:
+                self.logger.error("Unexpected error in main loop: %s", e, exc_info=True)
+                time.sleep(60)
+        
+        self.logger.info("Shutting down...")
+        self.logger.info("Shutdown complete")
+
+
+def parse_args():
+    """Parse command line arguments."""
+    parser = argparse.ArgumentParser(
+        description="Multi-Pair Divergence Live Trading Bot"
+    )
+    parser.add_argument(
+        "--max-position",
+        type=float,
+        default=None,
+        help="Maximum position size in USDT"
+    )
+    parser.add_argument(
+        "--leverage",
+        type=int,
+        default=None,
+        help="Trading leverage (1-125)"
+    )
+    parser.add_argument(
+        "--interval",
+        type=int,
+        default=None,
+        help="Trading cycle interval in seconds"
+    )
+    parser.add_argument(
+        "--live",
+        action="store_true",
+        help="Use live trading mode (requires OKX_DEMO_MODE=false)"
+    )
+    return parser.parse_args()
+
+
+def main():
+    """Main entry point."""
+    args = parse_args()
+    
+    # Load configuration
+    okx_config, trading_config, path_config = get_multi_pair_config()
+    
+    # Apply command line overrides
+    if args.max_position is not None:
+        trading_config.max_position_usdt = args.max_position
+    if args.leverage is not None:
+        trading_config.leverage = args.leverage
+    if args.interval is not None:
+        trading_config.sleep_seconds = args.interval
+    if args.live:
+        okx_config.demo_mode = False
+    
+    # Setup logging
+    logger = setup_logging(path_config.logs_dir)
+    
+    try:
+        # Validate config
+        okx_config.validate()
+        
+        # Create and run bot
+        bot = MultiPairLiveTradingBot(okx_config, trading_config, path_config)
+        bot.run()
+    except ValueError as e:
+        logger.error("Configuration error: %s", e)
+        sys.exit(1)
+    except Exception as e:
+        logger.error("Fatal error: %s", e, exc_info=True)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

live_trading/multi_pair/strategy.py

@@ -0,0 +1,396 @@
+"""
+Live Multi-Pair Divergence Strategy.
+
+Scores all pairs and selects the best divergence opportunity for trading.
+Uses the pre-trained universal ML model from backtesting.
+"""
+import logging
+import pickle
+from dataclasses import dataclass
+from pathlib import Path
+
+import pandas as pd
+import numpy as np
+from sklearn.ensemble import RandomForestClassifier
+
+# Opt-in to future pandas behavior to silence FutureWarning on fillna
+pd.set_option('future.no_silent_downcasting', True)
+
+from .config import MultiPairLiveConfig, PathConfig
+from .data_feed import TradingPair
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class DivergenceSignal:
+    """
+    Signal for a divergent pair.
+    
+    Attributes:
+        pair: Trading pair
+        z_score: Current Z-Score of the spread
+        probability: ML model probability of profitable reversion
+        divergence_score: Combined score (|z_score| * probability)
+        direction: 'long' or 'short' (relative to base asset)
+        base_price: Current price of base asset
+        quote_price: Current price of quote asset
+        atr: Average True Range in price units
+        atr_pct: ATR as percentage of price
+    """
+    pair: TradingPair
+    z_score: float
+    probability: float
+    divergence_score: float
+    direction: str
+    base_price: float
+    quote_price: float
+    atr: float
+    atr_pct: float
+    base_funding: float = 0.0
+
+
+class LiveMultiPairStrategy:
+    """
+    Live trading implementation of multi-pair divergence strategy.
+    
+    Scores all pairs using the universal ML model and selects
+    the best opportunity for mean-reversion trading.
+    """
+    
+    def __init__(
+        self,
+        config: MultiPairLiveConfig,
+        path_config: PathConfig
+    ):
+        self.config = config
+        self.paths = path_config
+        self.model: RandomForestClassifier | None = None
+        self.feature_cols: list[str] | None = None
+        self._load_model()
+    
+    def _load_model(self) -> None:
+        """Load pre-trained model from backtesting."""
+        if self.paths.model_path.exists():
+            try:
+                with open(self.paths.model_path, 'rb') as f:
+                    saved = pickle.load(f)
+                    self.model = saved['model']
+                    self.feature_cols = saved['feature_cols']
+                logger.info("Loaded model from %s", self.paths.model_path)
+            except Exception as e:
+                logger.error("Could not load model: %s", e)
+                raise ValueError(
+                    f"Multi-pair model not found at {self.paths.model_path}. "
+                    "Run the backtest first to train the model."
+                )
+        else:
+            raise ValueError(
+                f"Multi-pair model not found at {self.paths.model_path}. "
+                "Run the backtest first to train the model."
+            )
+    
+    def score_pairs(
+        self,
+        pair_features: dict[str, pd.DataFrame],
+        pairs: list[TradingPair]
+    ) -> list[DivergenceSignal]:
+        """
+        Score all pairs and return ranked signals.
+        
+        Args:
+            pair_features: Feature DataFrames by pair_id
+            pairs: List of TradingPair objects
+            
+        Returns:
+            List of DivergenceSignal sorted by score (descending)
+        """
+        if self.model is None:
+            logger.warning("Model not loaded")
+            return []
+        
+        signals = []
+        pair_map = {p.pair_id: p for p in pairs}
+        
+        for pair_id, features in pair_features.items():
+            if pair_id not in pair_map:
+                continue
+            
+            pair = pair_map[pair_id]
+            
+            # Get latest features
+            if len(features) == 0:
+                continue
+            
+            latest = features.iloc[-1]
+            z_score = latest['z_score']
+            
+            # Skip if Z-score below threshold
+            if abs(z_score) < self.config.z_entry_threshold:
+                continue
+            
+            # Prepare features for prediction
+            # Handle missing feature columns gracefully
+            available_cols = [c for c in self.feature_cols if c in latest.index]
+            missing_cols = [c for c in self.feature_cols if c not in latest.index]
+            
+            if missing_cols:
+                logger.debug("Missing feature columns: %s", missing_cols)
+            
+            feature_row = latest[available_cols].fillna(0)
+            feature_row = feature_row.replace([np.inf, -np.inf], 0)
+            
+            # Create full feature vector with zeros for missing
+            X_dict = {c: 0 for c in self.feature_cols}
+            for col in available_cols:
+                X_dict[col] = feature_row[col]
+            
+            X = pd.DataFrame([X_dict])
+            
+            # Predict probability
+            prob = self.model.predict_proba(X)[0, 1]
+            
+            # Skip if probability below threshold
+            if prob < self.config.prob_threshold:
+                continue
+            
+            # Apply funding rate filter
+            base_funding = latest.get('base_funding', 0) or 0
+            funding_thresh = self.config.funding_threshold
+            
+            if z_score > 0:  # Short signal
+                if base_funding < -funding_thresh:
+                    logger.debug(
+                        "Skipping %s short: funding too negative (%.4f)",
+                        pair.name, base_funding
+                    )
+                    continue
+            else:  # Long signal
+                if base_funding > funding_thresh:
+                    logger.debug(
+                        "Skipping %s long: funding too positive (%.4f)",
+                        pair.name, base_funding
+                    )
+                    continue
+            
+            # Calculate divergence score
+            divergence_score = abs(z_score) * prob
+            
+            # Determine direction
+            direction = 'short' if z_score > 0 else 'long'
+            
+            signal = DivergenceSignal(
+                pair=pair,
+                z_score=z_score,
+                probability=prob,
+                divergence_score=divergence_score,
+                direction=direction,
+                base_price=latest['base_close'],
+                quote_price=latest['quote_close'],
+                atr=latest.get('atr_base', 0),
+                atr_pct=latest.get('atr_pct_base', 0.02),
+                base_funding=base_funding
+            )
+            signals.append(signal)
+        
+        # Sort by divergence score (highest first)
+        signals.sort(key=lambda s: s.divergence_score, reverse=True)
+        
+        if signals:
+            logger.info(
+                "Scored %d pairs, top: %s (score=%.3f, z=%.2f, p=%.2f, dir=%s)",
+                len(signals),
+                signals[0].pair.name,
+                signals[0].divergence_score,
+                signals[0].z_score,
+                signals[0].probability,
+                signals[0].direction
+            )
+        else:
+            logger.info("No pairs meet entry criteria")
+        
+        return signals
+    
+    def select_best_pair(
+        self,
+        signals: list[DivergenceSignal]
+    ) -> DivergenceSignal | None:
+        """
+        Select the best pair from scored signals.
+        
+        Args:
+            signals: List of DivergenceSignal (pre-sorted by score)
+            
+        Returns:
+            Best signal or None if no valid candidates
+        """
+        if not signals:
+            return None
+        return signals[0]
+    
+    def generate_signal(
+        self,
+        pair_features: dict[str, pd.DataFrame],
+        pairs: list[TradingPair]
+    ) -> dict:
+        """
+        Generate trading signal from latest features.
+        
+        Args:
+            pair_features: Feature DataFrames by pair_id
+            pairs: List of TradingPair objects
+            
+        Returns:
+            Signal dictionary with action, pair, direction, etc.
+        """
+        # Score all pairs
+        signals = self.score_pairs(pair_features, pairs)
+        
+        # Select best
+        best = self.select_best_pair(signals)
+        
+        if best is None:
+            return {
+                'action': 'hold',
+                'reason': 'no_valid_signals'
+            }
+        
+        return {
+            'action': 'entry',
+            'pair': best.pair,
+            'pair_id': best.pair.pair_id,
+            'direction': best.direction,
+            'z_score': best.z_score,
+            'probability': best.probability,
+            'divergence_score': best.divergence_score,
+            'base_price': best.base_price,
+            'quote_price': best.quote_price,
+            'atr': best.atr,
+            'atr_pct': best.atr_pct,
+            'base_funding': best.base_funding,
+            'reason': f'{best.pair.name} z={best.z_score:.2f} p={best.probability:.2f}'
+        }
+    
+    def check_exit_signal(
+        self,
+        pair_features: dict[str, pd.DataFrame],
+        current_pair_id: str
+    ) -> dict:
+        """
+        Check if current position should be exited.
+        
+        Exit conditions:
+        1. Z-Score reverted to mean (|Z| < threshold)
+        
+        Args:
+            pair_features: Feature DataFrames by pair_id
+            current_pair_id: Current position's pair ID
+            
+        Returns:
+            Signal dictionary with action and reason
+        """
+        if current_pair_id not in pair_features:
+            return {
+                'action': 'exit',
+                'reason': 'pair_data_missing'
+            }
+        
+        features = pair_features[current_pair_id]
+        if len(features) == 0:
+            return {
+                'action': 'exit',
+                'reason': 'no_data'
+            }
+        
+        latest = features.iloc[-1]
+        z_score = latest['z_score']
+        
+        # Check mean reversion
+        if abs(z_score) < self.config.z_exit_threshold:
+            return {
+                'action': 'exit',
+                'reason': f'mean_reversion (z={z_score:.2f})'
+            }
+        
+        return {
+            'action': 'hold',
+            'z_score': z_score,
+            'reason': f'holding (z={z_score:.2f})'
+        }
+    
+    def calculate_sl_tp(
+        self,
+        entry_price: float,
+        direction: str,
+        atr: float,
+        atr_pct: float
+    ) -> tuple[float, float]:
+        """
+        Calculate ATR-based dynamic stop-loss and take-profit prices.
+        
+        Args:
+            entry_price: Entry price
+            direction: 'long' or 'short'
+            atr: ATR in price units
+            atr_pct: ATR as percentage of price
+            
+        Returns:
+            Tuple of (stop_loss_price, take_profit_price)
+        """
+        if atr > 0 and atr_pct > 0:
+            sl_distance = atr * self.config.sl_atr_multiplier
+            tp_distance = atr * self.config.tp_atr_multiplier
+            
+            sl_pct = sl_distance / entry_price
+            tp_pct = tp_distance / entry_price
+        else:
+            sl_pct = self.config.base_sl_pct
+            tp_pct = self.config.base_tp_pct
+        
+        # Apply bounds
+        sl_pct = max(self.config.min_sl_pct, min(sl_pct, self.config.max_sl_pct))
+        tp_pct = max(self.config.min_tp_pct, min(tp_pct, self.config.max_tp_pct))
+        
+        if direction == 'long':
+            stop_loss = entry_price * (1 - sl_pct)
+            take_profit = entry_price * (1 + tp_pct)
+        else:
+            stop_loss = entry_price * (1 + sl_pct)
+            take_profit = entry_price * (1 - tp_pct)
+        
+        return stop_loss, take_profit
+    
+    def calculate_position_size(
+        self,
+        divergence_score: float,
+        available_usdt: float
+    ) -> float:
+        """
+        Calculate position size based on divergence score.
+        
+        Args:
+            divergence_score: Combined score (|z| * prob)
+            available_usdt: Available USDT balance
+            
+        Returns:
+            Position size in USDT
+        """
+        if self.config.max_position_usdt <= 0:
+            base_size = available_usdt
+        else:
+            base_size = min(available_usdt, self.config.max_position_usdt)
+        
+        # Scale by divergence (1.0 at 0.5 score, up to 2.0 at 1.0+ score)
+        base_threshold = 0.5
+        if divergence_score <= base_threshold:
+            scale = 1.0
+        else:
+            scale = 1.0 + (divergence_score - base_threshold) / base_threshold
+            scale = min(scale, 2.0)
+        
+        size = base_size * scale
+        
+        if size < self.config.min_position_usdt:
+            return 0.0
+        
+        return min(size, available_usdt * 0.95)

live_trading/okx_client.py

@@ -0,0 +1,338 @@
+"""
+OKX Exchange Client for Live Trading.
+
+Handles connection to OKX API, order execution, and account management.
+Supports demo/sandbox mode for paper trading.
+"""
+import logging
+from typing import Optional
+from datetime import datetime, timezone
+
+import ccxt
+
+from .config import OKXConfig, TradingConfig
+
+logger = logging.getLogger(__name__)
+
+
+class OKXClient:
+    """
+    OKX Exchange client wrapper using CCXT.
+    
+    Supports both live and demo (sandbox) trading modes.
+    Demo mode uses OKX's official sandbox environment.
+    """
+    
+    def __init__(self, okx_config: OKXConfig, trading_config: TradingConfig):
+        self.okx_config = okx_config
+        self.trading_config = trading_config
+        self.exchange: Optional[ccxt.okx] = None
+        self._setup_exchange()
+    
+    def _setup_exchange(self) -> None:
+        """Initialize CCXT OKX exchange instance."""
+        self.okx_config.validate()
+        
+        config = {
+            'apiKey': self.okx_config.api_key,
+            'secret': self.okx_config.secret,
+            'password': self.okx_config.password,
+            'sandbox': self.okx_config.demo_mode,
+            'options': {
+                'defaultType': 'swap',  # Perpetual futures
+            },
+            'timeout': 30000,
+            'enableRateLimit': True,
+        }
+        
+        self.exchange = ccxt.okx(config)
+        
+        mode_str = "DEMO/SANDBOX" if self.okx_config.demo_mode else "LIVE"
+        logger.info(f"OKX Exchange initialized in {mode_str} mode")
+        
+        # Configure trading settings
+        self._configure_trading_settings()
+    
+    def _configure_trading_settings(self) -> None:
+        """Configure leverage and margin mode."""
+        symbol = self.trading_config.eth_symbol
+        leverage = self.trading_config.leverage
+        margin_mode = self.trading_config.margin_mode
+        
+        try:
+            # Set position mode to one-way (net) first
+            self.exchange.set_position_mode(False)  # False = one-way mode
+            logger.info("Position mode set to One-Way (Net)")
+        except Exception as e:
+            # Position mode might already be set
+            logger.debug(f"Position mode setting: {e}")
+        
+        try:
+            # Set margin mode with leverage parameter (required by OKX)
+            self.exchange.set_margin_mode(
+                margin_mode,
+                symbol,
+                params={'lever': leverage}
+            )
+            logger.info(
+                f"Margin mode set to {margin_mode} with {leverage}x leverage "
+                f"for {symbol}"
+            )
+        except Exception as e:
+            logger.warning(f"Could not set margin mode: {e}")
+            # Try setting leverage separately
+            try:
+                self.exchange.set_leverage(leverage, symbol)
+                logger.info(f"Leverage set to {leverage}x for {symbol}")
+            except Exception as e2:
+                logger.warning(f"Could not set leverage: {e2}")
+    
+    def fetch_ohlcv(
+        self, 
+        symbol: str, 
+        timeframe: str = "1h", 
+        limit: int = 500
+    ) -> list:
+        """
+        Fetch OHLCV candle data.
+        
+        Args:
+            symbol: Trading pair symbol (e.g., "ETH/USDT:USDT")
+            timeframe: Candle timeframe (e.g., "1h")
+            limit: Number of candles to fetch
+            
+        Returns:
+            List of OHLCV data
+        """
+        return self.exchange.fetch_ohlcv(symbol, timeframe, limit=limit)
+    
+    def get_balance(self) -> dict:
+        """
+        Get account balance.
+        
+        Returns:
+            Balance dictionary with 'total' and 'free' USDT amounts
+        """
+        balance = self.exchange.fetch_balance()
+        return {
+            'total': balance.get('USDT', {}).get('total', 0),
+            'free': balance.get('USDT', {}).get('free', 0),
+        }
+    
+    def get_positions(self) -> list:
+        """
+        Get open positions.
+        
+        Returns:
+            List of open position dictionaries
+        """
+        positions = self.exchange.fetch_positions()
+        return [p for p in positions if float(p.get('contracts', 0)) != 0]
+    
+    def get_position(self, symbol: str) -> Optional[dict]:
+        """
+        Get position for a specific symbol.
+        
+        Args:
+            symbol: Trading pair symbol
+            
+        Returns:
+            Position dictionary or None if no position
+        """
+        positions = self.get_positions()
+        for pos in positions:
+            if pos.get('symbol') == symbol:
+                return pos
+        return None
+    
+    def place_market_order(
+        self, 
+        symbol: str, 
+        side: str, 
+        amount: float,
+        reduce_only: bool = False
+    ) -> dict:
+        """
+        Place a market order.
+        
+        Args:
+            symbol: Trading pair symbol
+            side: "buy" or "sell"
+            amount: Order amount in base currency
+            reduce_only: If True, only reduce existing position
+            
+        Returns:
+            Order result dictionary
+        """
+        params = {
+            'tdMode': self.trading_config.margin_mode,
+        }
+        if reduce_only:
+            params['reduceOnly'] = True
+        
+        order = self.exchange.create_market_order(
+            symbol, side, amount, params=params
+        )
+        logger.info(
+            f"Market {side.upper()} order placed: {amount} {symbol} "
+            f"@ market price, order_id={order['id']}"
+        )
+        return order
+    
+    def place_limit_order(
+        self, 
+        symbol: str, 
+        side: str, 
+        amount: float,
+        price: float,
+        reduce_only: bool = False
+    ) -> dict:
+        """
+        Place a limit order.
+        
+        Args:
+            symbol: Trading pair symbol
+            side: "buy" or "sell"
+            amount: Order amount in base currency
+            price: Limit price
+            reduce_only: If True, only reduce existing position
+            
+        Returns:
+            Order result dictionary
+        """
+        params = {
+            'tdMode': self.trading_config.margin_mode,
+        }
+        if reduce_only:
+            params['reduceOnly'] = True
+        
+        order = self.exchange.create_limit_order(
+            symbol, side, amount, price, params=params
+        )
+        logger.info(
+            f"Limit {side.upper()} order placed: {amount} {symbol} "
+            f"@ {price}, order_id={order['id']}"
+        )
+        return order
+    
+    def set_stop_loss_take_profit(
+        self,
+        symbol: str,
+        side: str,
+        amount: float,
+        stop_loss_price: float,
+        take_profit_price: float
+    ) -> tuple:
+        """
+        Set stop-loss and take-profit orders.
+        
+        Args:
+            symbol: Trading pair symbol
+            side: Position side ("long" or "short")
+            amount: Position size
+            stop_loss_price: Stop-loss trigger price
+            take_profit_price: Take-profit trigger price
+            
+        Returns:
+            Tuple of (sl_order, tp_order)
+        """
+        # For long position: SL sells, TP sells
+        # For short position: SL buys, TP buys
+        close_side = "sell" if side == "long" else "buy"
+        
+        # Stop-loss order
+        sl_params = {
+            'tdMode': self.trading_config.margin_mode,
+            'reduceOnly': True,
+            'stopLossPrice': stop_loss_price,
+        }
+        
+        try:
+            sl_order = self.exchange.create_order(
+                symbol, 'market', close_side, amount,
+                params={
+                    'tdMode': self.trading_config.margin_mode,
+                    'reduceOnly': True,
+                    'slTriggerPx': str(stop_loss_price),
+                    'slOrdPx': '-1',  # Market price
+                }
+            )
+            logger.info(f"Stop-loss set at {stop_loss_price}")
+        except Exception as e:
+            logger.warning(f"Could not set stop-loss: {e}")
+            sl_order = None
+        
+        # Take-profit order
+        try:
+            tp_order = self.exchange.create_order(
+                symbol, 'market', close_side, amount,
+                params={
+                    'tdMode': self.trading_config.margin_mode,
+                    'reduceOnly': True,
+                    'tpTriggerPx': str(take_profit_price),
+                    'tpOrdPx': '-1',  # Market price
+                }
+            )
+            logger.info(f"Take-profit set at {take_profit_price}")
+        except Exception as e:
+            logger.warning(f"Could not set take-profit: {e}")
+            tp_order = None
+        
+        return sl_order, tp_order
+    
+    def close_position(self, symbol: str) -> Optional[dict]:
+        """
+        Close an open position.
+        
+        Args:
+            symbol: Trading pair symbol
+            
+        Returns:
+            Order result or None if no position
+        """
+        position = self.get_position(symbol)
+        if not position:
+            logger.info(f"No open position for {symbol}")
+            return None
+        
+        contracts = abs(float(position.get('contracts', 0)))
+        if contracts == 0:
+            return None
+        
+        side = position.get('side', 'long')
+        close_side = "sell" if side == "long" else "buy"
+        
+        order = self.place_market_order(
+            symbol, close_side, contracts, reduce_only=True
+        )
+        logger.info(f"Position closed for {symbol}")
+        return order
+    
+    def get_ticker(self, symbol: str) -> dict:
+        """
+        Get current ticker/price for a symbol.
+        
+        Args:
+            symbol: Trading pair symbol
+            
+        Returns:
+            Ticker dictionary with 'last', 'bid', 'ask' prices
+        """
+        return self.exchange.fetch_ticker(symbol)
+    
+    def get_funding_rate(self, symbol: str) -> float:
+        """
+        Get current funding rate for a perpetual symbol.
+        
+        Args:
+            symbol: Trading pair symbol
+            
+        Returns:
+            Current funding rate as decimal
+        """
+        try:
+            funding = self.exchange.fetch_funding_rate(symbol)
+            return float(funding.get('fundingRate', 0))
+        except Exception as e:
+            logger.warning(f"Could not fetch funding rate: {e}")
+            return 0.0

live_trading/position_manager.py

@@ -0,0 +1,369 @@
+"""
+Position Manager for Live Trading.
+
+Tracks open positions, manages risk, and handles SL/TP logic.
+"""
+import json
+import logging
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Optional
+from dataclasses import dataclass, field, asdict
+
+from .okx_client import OKXClient
+from .config import TradingConfig, PathConfig
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class Position:
+    """Represents an open trading position."""
+    trade_id: str
+    symbol: str
+    side: str  # "long" or "short"
+    entry_price: float
+    entry_time: str  # ISO format
+    size: float  # Amount in base currency (e.g., ETH)
+    size_usdt: float  # Notional value in USDT
+    stop_loss_price: float
+    take_profit_price: float
+    current_price: float = 0.0
+    unrealized_pnl: float = 0.0
+    unrealized_pnl_pct: float = 0.0
+    order_id: str = ""  # Entry order ID from exchange
+    
+    def update_pnl(self, current_price: float) -> None:
+        """Update unrealized PnL based on current price."""
+        self.current_price = current_price
+        
+        if self.side == "long":
+            self.unrealized_pnl = (current_price - self.entry_price) * self.size
+            self.unrealized_pnl_pct = (current_price / self.entry_price - 1) * 100
+        else:  # short
+            self.unrealized_pnl = (self.entry_price - current_price) * self.size
+            self.unrealized_pnl_pct = (1 - current_price / self.entry_price) * 100
+    
+    def should_stop_loss(self, current_price: float) -> bool:
+        """Check if stop-loss should trigger."""
+        if self.side == "long":
+            return current_price <= self.stop_loss_price
+        return current_price >= self.stop_loss_price
+    
+    def should_take_profit(self, current_price: float) -> bool:
+        """Check if take-profit should trigger."""
+        if self.side == "long":
+            return current_price >= self.take_profit_price
+        return current_price <= self.take_profit_price
+    
+    def to_dict(self) -> dict:
+        """Convert to dictionary for JSON serialization."""
+        return asdict(self)
+    
+    @classmethod
+    def from_dict(cls, data: dict) -> 'Position':
+        """Create Position from dictionary."""
+        return cls(**data)
+
+
+class PositionManager:
+    """
+    Manages trading positions with persistence.
+    
+    Tracks open positions, enforces risk limits, and handles
+    position lifecycle (open, update, close).
+    """
+    
+    def __init__(
+        self,
+        okx_client: OKXClient,
+        trading_config: TradingConfig,
+        path_config: PathConfig
+    ):
+        self.client = okx_client
+        self.config = trading_config
+        self.paths = path_config
+        self.positions: dict[str, Position] = {}
+        self.trade_log: list[dict] = []
+        self._load_positions()
+    
+    def _load_positions(self) -> None:
+        """Load positions from file."""
+        if self.paths.positions_file.exists():
+            try:
+                with open(self.paths.positions_file, 'r') as f:
+                    data = json.load(f)
+                    for trade_id, pos_data in data.items():
+                        self.positions[trade_id] = Position.from_dict(pos_data)
+                logger.info(f"Loaded {len(self.positions)} positions from file")
+            except Exception as e:
+                logger.warning(f"Could not load positions: {e}")
+    
+    def save_positions(self) -> None:
+        """Save positions to file."""
+        try:
+            data = {
+                trade_id: pos.to_dict() 
+                for trade_id, pos in self.positions.items()
+            }
+            with open(self.paths.positions_file, 'w') as f:
+                json.dump(data, f, indent=2)
+            logger.debug(f"Saved {len(self.positions)} positions")
+        except Exception as e:
+            logger.error(f"Could not save positions: {e}")
+    
+    def can_open_position(self) -> bool:
+        """Check if we can open a new position."""
+        return len(self.positions) < self.config.max_concurrent_positions
+    
+    def get_position_for_symbol(self, symbol: str) -> Optional[Position]:
+        """Get position for a specific symbol."""
+        for pos in self.positions.values():
+            if pos.symbol == symbol:
+                return pos
+        return None
+    
+    def open_position(
+        self,
+        symbol: str,
+        side: str,
+        entry_price: float,
+        size: float,
+        stop_loss_price: float,
+        take_profit_price: float,
+        order_id: str = ""
+    ) -> Optional[Position]:
+        """
+        Open a new position.
+        
+        Args:
+            symbol: Trading pair symbol
+            side: "long" or "short"
+            entry_price: Entry price
+            size: Position size in base currency
+            stop_loss_price: Stop-loss price
+            take_profit_price: Take-profit price
+            order_id: Entry order ID from exchange
+            
+        Returns:
+            Position object or None if failed
+        """
+        if not self.can_open_position():
+            logger.warning("Cannot open position: max concurrent positions reached")
+            return None
+        
+        # Check if already have position for this symbol
+        existing = self.get_position_for_symbol(symbol)
+        if existing:
+            logger.warning(f"Already have position for {symbol}")
+            return None
+        
+        # Generate trade ID
+        now = datetime.now(timezone.utc)
+        trade_id = f"{symbol}_{now.strftime('%Y%m%d_%H%M%S')}"
+        
+        position = Position(
+            trade_id=trade_id,
+            symbol=symbol,
+            side=side,
+            entry_price=entry_price,
+            entry_time=now.isoformat(),
+            size=size,
+            size_usdt=entry_price * size,
+            stop_loss_price=stop_loss_price,
+            take_profit_price=take_profit_price,
+            current_price=entry_price,
+            order_id=order_id,
+        )
+        
+        self.positions[trade_id] = position
+        self.save_positions()
+        
+        logger.info(
+            f"Opened {side.upper()} position: {size} {symbol} @ {entry_price}, "
+            f"SL={stop_loss_price}, TP={take_profit_price}"
+        )
+        
+        return position
+    
+    def close_position(
+        self,
+        trade_id: str,
+        exit_price: float,
+        reason: str = "manual",
+        exit_order_id: str = ""
+    ) -> Optional[dict]:
+        """
+        Close a position and record the trade.
+        
+        Args:
+            trade_id: Position trade ID
+            exit_price: Exit price
+            reason: Reason for closing (e.g., "stop_loss", "take_profit", "signal")
+            exit_order_id: Exit order ID from exchange
+            
+        Returns:
+            Trade record dictionary
+        """
+        if trade_id not in self.positions:
+            logger.warning(f"Position {trade_id} not found")
+            return None
+        
+        position = self.positions[trade_id]
+        position.update_pnl(exit_price)
+        
+        # Calculate final PnL
+        entry_time = datetime.fromisoformat(position.entry_time)
+        exit_time = datetime.now(timezone.utc)
+        hold_duration = (exit_time - entry_time).total_seconds() / 3600  # hours
+        
+        trade_record = {
+            'trade_id': trade_id,
+            'symbol': position.symbol,
+            'side': position.side,
+            'entry_price': position.entry_price,
+            'exit_price': exit_price,
+            'size': position.size,
+            'size_usdt': position.size_usdt,
+            'pnl_usd': position.unrealized_pnl,
+            'pnl_pct': position.unrealized_pnl_pct,
+            'entry_time': position.entry_time,
+            'exit_time': exit_time.isoformat(),
+            'hold_duration_hours': hold_duration,
+            'reason': reason,
+            'order_id_entry': position.order_id,
+            'order_id_exit': exit_order_id,
+        }
+        
+        self.trade_log.append(trade_record)
+        del self.positions[trade_id]
+        self.save_positions()
+        self._append_trade_log(trade_record)
+        
+        logger.info(
+            f"Closed {position.side.upper()} position: {position.size} {position.symbol} "
+            f"@ {exit_price}, PnL=${position.unrealized_pnl:.2f} ({position.unrealized_pnl_pct:.2f}%), "
+            f"reason={reason}"
+        )
+        
+        return trade_record
+    
+    def _append_trade_log(self, trade_record: dict) -> None:
+        """Append trade record to CSV log file."""
+        import csv
+        
+        file_exists = self.paths.trade_log_file.exists()
+        
+        with open(self.paths.trade_log_file, 'a', newline='') as f:
+            writer = csv.DictWriter(f, fieldnames=trade_record.keys())
+            if not file_exists:
+                writer.writeheader()
+            writer.writerow(trade_record)
+    
+    def update_positions(self, current_prices: dict[str, float]) -> list[dict]:
+        """
+        Update all positions with current prices and check SL/TP.
+        
+        Args:
+            current_prices: Dictionary of symbol -> current price
+            
+        Returns:
+            List of closed trade records
+        """
+        closed_trades = []
+        
+        for trade_id in list(self.positions.keys()):
+            position = self.positions[trade_id]
+            
+            if position.symbol not in current_prices:
+                continue
+            
+            current_price = current_prices[position.symbol]
+            position.update_pnl(current_price)
+            
+            # Check stop-loss
+            if position.should_stop_loss(current_price):
+                logger.warning(
+                    f"Stop-loss triggered for {trade_id} at {current_price}"
+                )
+                # Close position on exchange
+                exit_order_id = ""
+                try:
+                    exit_order = self.client.close_position(position.symbol)
+                    exit_order_id = exit_order.get('id', '') if exit_order else ''
+                except Exception as e:
+                    logger.error(f"Failed to close position on exchange: {e}")
+                
+                record = self.close_position(trade_id, current_price, "stop_loss", exit_order_id)
+                if record:
+                    closed_trades.append(record)
+                continue
+            
+            # Check take-profit
+            if position.should_take_profit(current_price):
+                logger.info(
+                    f"Take-profit triggered for {trade_id} at {current_price}"
+                )
+                # Close position on exchange
+                exit_order_id = ""
+                try:
+                    exit_order = self.client.close_position(position.symbol)
+                    exit_order_id = exit_order.get('id', '') if exit_order else ''
+                except Exception as e:
+                    logger.error(f"Failed to close position on exchange: {e}")
+                
+                record = self.close_position(trade_id, current_price, "take_profit", exit_order_id)
+                if record:
+                    closed_trades.append(record)
+        
+        self.save_positions()
+        return closed_trades
+    
+    def sync_with_exchange(self) -> None:
+        """
+        Sync local positions with exchange positions.
+        
+        Reconciles any discrepancies between local tracking
+        and actual exchange positions.
+        """
+        try:
+            exchange_positions = self.client.get_positions()
+            exchange_symbols = {p['symbol'] for p in exchange_positions}
+            
+            # Check for positions we have locally but not on exchange
+            for trade_id in list(self.positions.keys()):
+                pos = self.positions[trade_id]
+                if pos.symbol not in exchange_symbols:
+                    logger.warning(
+                        f"Position {trade_id} not found on exchange, removing"
+                    )
+                    # Get last price and close
+                    try:
+                        ticker = self.client.get_ticker(pos.symbol)
+                        exit_price = ticker['last']
+                    except Exception:
+                        exit_price = pos.current_price
+                    
+                    self.close_position(trade_id, exit_price, "sync_removed")
+            
+            logger.info(f"Position sync complete: {len(self.positions)} local positions")
+            
+        except Exception as e:
+            logger.error(f"Position sync failed: {e}")
+    
+    def get_portfolio_summary(self) -> dict:
+        """
+        Get portfolio summary.
+        
+        Returns:
+            Dictionary with portfolio statistics
+        """
+        total_exposure = sum(p.size_usdt for p in self.positions.values())
+        total_unrealized_pnl = sum(p.unrealized_pnl for p in self.positions.values())
+        
+        return {
+            'open_positions': len(self.positions),
+            'total_exposure_usdt': total_exposure,
+            'total_unrealized_pnl': total_unrealized_pnl,
+            'positions': [p.to_dict() for p in self.positions.values()],
+        }

pyproject.toml

@@ -15,6 +15,10 @@ dependencies = [
     "plotly>=5.24.0",
     "requests>=2.32.5",
     "python-dotenv>=1.2.1",
+    # API dependencies
+    "fastapi>=0.115.0",
+    "uvicorn[standard]>=0.34.0",
+    "sqlalchemy>=2.0.0",
 ]
 
 [project.optional-dependencies]

research/regime_detection.py

@@ -1,384 +1,342 @@
+"""
+Regime Detection Research Script with Walk-Forward Training.
+
+Tests multiple holding horizons to find optimal parameters
+without look-ahead bias.
+"""
 import sys
 import os
-from pathlib import Path
-
-# Add project root to path
 sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 import pandas as pd
 import numpy as np
 import ta
 from sklearn.ensemble import RandomForestClassifier
-from sklearn.model_selection import train_test_split
+from sklearn.metrics import classification_report, f1_score
-from sklearn.metrics import classification_report, confusion_matrix
-import plotly.graph_objects as go
-from plotly.subplots import make_subplots
 
 from engine.data_manager import DataManager
 from engine.market import MarketType
+from engine.logging_config import get_logger
 
-def prepare_data(symbol_a="BTC-USDT", symbol_b="ETH-USDT", timeframe="1h", limit=None, start_date=None, end_date=None):
+logger = get_logger(__name__)
-    """
+
-    Load and align data for two assets to create a pair.
+# Configuration
-    """
+TRAIN_RATIO = 0.7  # 70% train, 30% test
+PROFIT_THRESHOLD = 0.005  # 0.5% profit target
+Z_WINDOW = 24
+FEE_RATE = 0.001  # 0.1% round-trip fee
+
+
+def load_data():
+    """Load and align BTC/ETH data."""
     dm = DataManager()
     
-    print(f"Loading data for {symbol_a} and {symbol_b}...")
+    df_btc = dm.load_data("okx", "BTC-USDT", "1h", MarketType.SPOT)
+    df_eth = dm.load_data("okx", "ETH-USDT", "1h", MarketType.SPOT)
     
-    # Helper to load or download
+    # Filter to Oct-Dec 2025
-    def get_df(symbol):
+    start = pd.Timestamp("2025-10-01", tz="UTC")
+    end = pd.Timestamp("2025-12-31", tz="UTC")
+    
+    df_btc = df_btc[(df_btc.index >= start) & (df_btc.index <= end)]
+    df_eth = df_eth[(df_eth.index >= start) & (df_eth.index <= end)]
+    
+    # Align indices
+    common = df_btc.index.intersection(df_eth.index)
+    df_btc = df_btc.loc[common]
+    df_eth = df_eth.loc[common]
+    
+    logger.info(f"Loaded {len(common)} aligned hourly bars")
+    return df_btc, df_eth
+
+
+def load_cryptoquant_data():
+    """Load CryptoQuant on-chain data if available."""
     try:
-            # Try load first
+        cq_path = "data/cq_training_data.csv"
-            df = dm.load_data("okx", symbol, timeframe, MarketType.SPOT)
+        cq_df = pd.read_csv(cq_path, index_col='timestamp', parse_dates=True)
-        except Exception:
+        if cq_df.index.tz is None:
-            df = dm.download_data("okx", symbol, timeframe, market_type=MarketType.SPOT)
+            cq_df.index = cq_df.index.tz_localize('UTC')
-            
+        logger.info(f"Loaded CryptoQuant data: {len(cq_df)} rows")
-        # If we have start/end dates, ensure we have enough data or re-download
+        return cq_df
-        if start_date:
+    except Exception as e:
-            mask_start = pd.Timestamp(start_date, tz='UTC')
+        logger.warning(f"CryptoQuant data not available: {e}")
-            if df.index.min() > mask_start:
-                 print(f"Local data starts {df.index.min()}, need {mask_start}. Downloading...")
-                 df = dm.download_data("okx", symbol, timeframe, start_date=start_date, end_date=end_date, market_type=MarketType.SPOT)
-        return df
-
-    df_a = get_df(symbol_a)
-    df_b = get_df(symbol_b)
-
-    # Filter by date if provided (to match CQ data range)
-    if start_date:
-        df_a = df_a[df_a.index >= pd.Timestamp(start_date, tz='UTC')]
-        df_b = df_b[df_b.index >= pd.Timestamp(start_date, tz='UTC')]
-    
-    if end_date:
-        df_a = df_a[df_a.index <= pd.Timestamp(end_date, tz='UTC')]
-        df_b = df_b[df_b.index <= pd.Timestamp(end_date, tz='UTC')]
-
-    # Align DataFrames
-    print("Aligning data...")
-    common_index = df_a.index.intersection(df_b.index)
-    df_a = df_a.loc[common_index].copy()
-    df_b = df_b.loc[common_index].copy()
-    
-    if limit:
-        df_a = df_a.tail(limit)
-        df_b = df_b.tail(limit)
-
-    return df_a, df_b
-
-def load_cryptoquant_data(file_path: str) -> pd.DataFrame | None:
-    """
-    Load CryptoQuant data and prepare it for merging.
-    """
-    if not os.path.exists(file_path):
-        print(f"Warning: CQ data file {file_path} not found.")
         return None
 
-    print(f"Loading CryptoQuant data from {file_path}...")
-    df = pd.read_csv(file_path, index_col='timestamp', parse_dates=True)
 
-    # CQ data is usually daily (UTC 00:00). 
+def calculate_features(df_btc, df_eth, cq_df=None):
-    # Ensure index is timezone aware to match market data
+    """Calculate all features for the model."""
-    if df.index.tz is None:
+    spread = df_eth['close'] / df_btc['close']
-        df.index = df.index.tz_localize('UTC')
     
-    return df
+    # Z-Score
-
+    rolling_mean = spread.rolling(window=Z_WINDOW).mean()
-def calculate_features(df_a, df_b, cq_df=None, window=24):
+    rolling_std = spread.rolling(window=Z_WINDOW).std()
-    """
-    Calculate spread, z-score, and advanced regime features including CQ data.
-    """
-    # 1. Price Ratio (Spread)
-    spread = df_b['close'] / df_a['close']
-    
-    # 2. Rolling Statistics for Z-Score
-    rolling_mean = spread.rolling(window=window).mean()
-    rolling_std = spread.rolling(window=window).std()
     z_score = (spread - rolling_mean) / rolling_std
     
-    # 3. Spread Momentum / Technicals
+    # Technicals
     spread_rsi = ta.momentum.RSIIndicator(spread, window=14).rsi()
     spread_roc = spread.pct_change(periods=5) * 100
+    spread_change_1h = spread.pct_change(periods=1)
     
-    # 4. Volume Dynamics
+    # Volume
-    vol_ratio = df_b['volume'] / df_a['volume']
+    vol_ratio = df_eth['volume'] / df_btc['volume']
     vol_ratio_ma = vol_ratio.rolling(window=12).mean()
     
-    # 5. Volatility Regime
+    # Volatility
-    ret_a = df_a['close'].pct_change()
+    ret_btc = df_btc['close'].pct_change()
-    ret_b = df_b['close'].pct_change()
+    ret_eth = df_eth['close'].pct_change()
-    vol_a = ret_a.rolling(window=window).std()
+    vol_btc = ret_btc.rolling(window=Z_WINDOW).std()
-    vol_b = ret_b.rolling(window=window).std()
+    vol_eth = ret_eth.rolling(window=Z_WINDOW).std()
-    vol_spread_ratio = vol_b / vol_a  
+    vol_spread_ratio = vol_eth / vol_btc
     
-    # Create feature DataFrame
     features = pd.DataFrame(index=spread.index)
     features['spread'] = spread
     features['z_score'] = z_score
     features['spread_rsi'] = spread_rsi
     features['spread_roc'] = spread_roc
+    features['spread_change_1h'] = spread_change_1h
     features['vol_ratio'] = vol_ratio
     features['vol_ratio_rel'] = vol_ratio / vol_ratio_ma
     features['vol_diff_ratio'] = vol_spread_ratio
     
-    # 6. Merge CryptoQuant Data
+    # Add CQ features if available
     if cq_df is not None:
-        print("Merging CryptoQuant features...")
-        # Forward fill daily data to hourly timestamps
-        # reindex features to match cq_df range or join
-        
-        # Resample CQ to hourly (ffill)
-        # But easier: join features with cq_df using asof or reindex
         cq_aligned = cq_df.reindex(features.index, method='ffill')
-        
-        # Add derived CQ features
-        # Funding Diff: If ETH funding > BTC funding => ETH overheated
         if 'btc_funding' in cq_aligned.columns and 'eth_funding' in cq_aligned.columns:
             cq_aligned['funding_diff'] = cq_aligned['eth_funding'] - cq_aligned['btc_funding']
-            
-        # Inflow Ratio: If ETH inflow >> BTC inflow => ETH dump incoming?
         if 'btc_inflow' in cq_aligned.columns and 'eth_inflow' in cq_aligned.columns:
-            # Add small epsilon to avoid div by zero
             cq_aligned['inflow_ratio'] = cq_aligned['eth_inflow'] / (cq_aligned['btc_inflow'] + 1)
-            
         features = features.join(cq_aligned)
     
-    # --- Refined Target Definition (Anytime Profit) ---
-    horizon = 6
-    threshold = 0.005  # 0.5% profit target
-    z_threshold = 1.0
-
-    # For Short Spread (Z > 1): Did it drop below target?
-    # We look for the MINIMUM spread in the next 'horizon' periods
-    future_min = features['spread'].rolling(window=horizon).min().shift(-horizon)
-    target_short = features['spread'] * (1 - threshold)
-    success_short = (features['z_score'] > z_threshold) & (future_min < target_short)
-
-    # For Long Spread (Z < -1): Did it rise above target?
-    # We look for the MAXIMUM spread in the next 'horizon' periods
-    future_max = features['spread'].rolling(window=horizon).max().shift(-horizon)
-    target_long = features['spread'] * (1 + threshold)
-    success_long = (features['z_score'] < -z_threshold) & (future_max > target_long)
-    
-    conditions = [success_short, success_long]
-    
-    features['target'] = np.select(conditions, [1, 1], default=0)
-    
     return features.dropna()
 
-def train_regime_model(features):
-    """
-    Train a Random Forest to predict mean reversion success.
-    """
-    # Define excluded columns (targets, raw prices, intermediates)
-    exclude_cols = ['spread', 'horizon_ret', 'target', 'rolling_mean', 'rolling_std']
 
-    # Auto-select all other numeric columns as features
+def calculate_targets(features, horizon):
-    feature_cols = [c for c in features.columns if c not in exclude_cols]
+    """Calculate target labels for a given horizon."""
+    spread = features['spread']
+    z_score = features['z_score']
     
-    # Handle NaN/Inf if any slipped through
+    # For Short (Z > 1): Did spread drop below target?
-    X = features[feature_cols].replace([np.inf, -np.inf], np.nan).fillna(0)
+    future_min = spread.rolling(window=horizon).min().shift(-horizon)
-    y = features['target']
+    target_short = spread * (1 - PROFIT_THRESHOLD)
+    success_short = (z_score > 1.0) & (future_min < target_short)
     
-    # Split Data
+    # For Long (Z < -1): Did spread rise above target?
-    X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.3, shuffle=False)
+    future_max = spread.rolling(window=horizon).max().shift(-horizon)
+    target_long = spread * (1 + PROFIT_THRESHOLD)
+    success_long = (z_score < -1.0) & (future_max > target_long)
     
-    print(f"\nTraining on {len(X_train)} samples, Testing on {len(X_test)} samples...")
+    targets = np.select([success_short, success_long], [1, 1], default=0)
-    print(f"Features used: {feature_cols}")
-    print(f"Class Balance (Target=1): {y.mean():.2%}")
     
-    # Model
+    # Create valid mask (rows with complete future data)
+    valid_mask = future_min.notna() & future_max.notna()
+    
+    return targets, valid_mask, future_min, future_max
+
+
+def calculate_mae(features, predictions, test_idx, horizon):
+    """Calculate Maximum Adverse Excursion for predicted trades."""
+    test_features = features.loc[test_idx]
+    spread = test_features['spread']
+    z_score = test_features['z_score']
+    
+    mae_values = []
+    
+    for i, (idx, pred) in enumerate(zip(test_idx, predictions)):
+        if pred != 1:
+            continue
+            
+        entry_spread = spread.loc[idx]
+        z = z_score.loc[idx]
+        
+        # Get future spread values
+        future_idx = features.index.get_loc(idx)
+        future_end = min(future_idx + horizon, len(features))
+        future_spreads = features['spread'].iloc[future_idx:future_end]
+        
+        if len(future_spreads) < 2:
+            continue
+        
+        if z > 1.0:  # Short trade
+            max_adverse = (future_spreads.max() - entry_spread) / entry_spread
+        else:  # Long trade
+            max_adverse = (entry_spread - future_spreads.min()) / entry_spread
+        
+        mae_values.append(max_adverse * 100)  # As percentage
+    
+    return np.mean(mae_values) if mae_values else 0.0
+
+
+def calculate_net_profit(features, predictions, test_idx, horizon):
+    """Calculate estimated net profit including fees."""
+    test_features = features.loc[test_idx]
+    spread = test_features['spread']
+    z_score = test_features['z_score']
+    
+    total_pnl = 0.0
+    n_trades = 0
+    
+    for i, (idx, pred) in enumerate(zip(test_idx, predictions)):
+        if pred != 1:
+            continue
+        
+        entry_spread = spread.loc[idx]
+        z = z_score.loc[idx]
+        
+        # Get future spread values
+        future_idx = features.index.get_loc(idx)
+        future_end = min(future_idx + horizon, len(features))
+        future_spreads = features['spread'].iloc[future_idx:future_end]
+        
+        if len(future_spreads) < 2:
+            continue
+        
+        # Calculate PnL based on direction
+        if z > 1.0:  # Short trade - profit if spread drops
+            exit_spread = future_spreads.iloc[-1]  # Exit at horizon
+            pnl = (entry_spread - exit_spread) / entry_spread
+        else:  # Long trade - profit if spread rises
+            exit_spread = future_spreads.iloc[-1]
+            pnl = (exit_spread - entry_spread) / entry_spread
+        
+        # Subtract fees
+        net_pnl = pnl - FEE_RATE
+        total_pnl += net_pnl
+        n_trades += 1
+    
+    return total_pnl, n_trades
+
+
+def test_horizon(features, horizon):
+    """Test a single horizon with walk-forward training."""
+    # Calculate targets
+    targets, valid_mask, _, _ = calculate_targets(features, horizon)
+    
+    # Walk-forward split
+    n_samples = len(features)
+    train_size = int(n_samples * TRAIN_RATIO)
+    
+    train_features = features.iloc[:train_size]
+    test_features = features.iloc[train_size:]
+    
+    train_targets = targets[:train_size]
+    test_targets = targets[train_size:]
+    
+    train_valid = valid_mask.iloc[:train_size]
+    test_valid = valid_mask.iloc[train_size:]
+    
+    # Prepare training data (only valid rows)
+    exclude = ['spread']
+    cols = [c for c in features.columns if c not in exclude]
+    
+    X_train = train_features[cols].fillna(0).replace([np.inf, -np.inf], 0)
+    X_train_valid = X_train[train_valid]
+    y_train_valid = train_targets[train_valid]
+    
+    if len(X_train_valid) < 50:
+        return None  # Not enough training data
+    
+    # Train model
     model = RandomForestClassifier(
-        n_estimators=200, 
+        n_estimators=300, max_depth=5, min_samples_leaf=30,
-        max_depth=6, 
+        class_weight={0: 1, 1: 3}, random_state=42
-        min_samples_leaf=20, 
-        class_weight='balanced_subsample',
-        random_state=42
     )
-    model.fit(X_train, y_train)
+    model.fit(X_train_valid, y_train_valid)
     
-    # Evaluation
+    # Predict on test set
-    y_pred = model.predict(X_test)
+    X_test = test_features[cols].fillna(0).replace([np.inf, -np.inf], 0)
-    y_prob = model.predict_proba(X_test)[:, 1]
+    predictions = model.predict(X_test)
     
-    print("\n--- Model Evaluation ---")
+    # Only evaluate on valid test rows (those with complete future data)
-    print(classification_report(y_test, y_pred))
+    test_valid_mask = test_valid.values
+    y_test_valid = test_targets[test_valid_mask]
+    pred_valid = predictions[test_valid_mask]
     
-    # Feature Importance
+    if len(y_test_valid) < 10:
-    importances = pd.Series(model.feature_importances_, index=feature_cols).sort_values(ascending=False)
+        return None
-    print("\n--- Feature Importance ---")
-    print(importances)
     
-    return model, X_test, y_test, y_pred, y_prob
+    # Calculate metrics
+    f1 = f1_score(y_test_valid, pred_valid, zero_division=0)
     
-def plot_interactive_results(features, y_test, y_pred, y_prob):
+    # Calculate MAE and Net Profit on ALL test predictions (not just valid targets)
-    """
+    test_idx = test_features.index
-    Create an interactive HTML plot using Plotly.
+    avg_mae = calculate_mae(features, predictions, test_idx, horizon)
-    """
+    net_pnl, n_trades = calculate_net_profit(features, predictions, test_idx, horizon)
-    print("\nGenerating interactive plot...")
     
-    test_idx = y_test.index
+    return {
-    test_data = features.loc[test_idx].copy()
+        'horizon': horizon,
-    test_data['prob'] = y_prob
+        'f1_score': f1,
-    test_data['prediction'] = y_pred
+        'avg_mae': avg_mae,
-    test_data['actual'] = y_test
+        'net_pnl': net_pnl,
+        'n_trades': n_trades,
+        'train_samples': len(X_train_valid),
+        'test_samples': len(X_test)
+    }
 
-    # Create Subplots
-    fig = make_subplots(
-        rows=3, cols=1,
-        shared_xaxes=True,
-        vertical_spacing=0.05,
-        row_heights=[0.5, 0.25, 0.25],
-        subplot_titles=('Spread & Signals', 'Exchange Inflows', 'Z-Score & Probability')
-    )
 
-    # Top: Spread
+def test_horizons(features, horizons):
-    fig.add_trace(
+    """Test multiple horizons and return comparison."""
-        go.Scatter(x=test_data.index, y=test_data['spread'], mode='lines', name='Spread', line=dict(color='gray')),
+    results = []
-        row=1, col=1
-    )
     
-    # Signals
+    print("\n" + "=" * 80)
-    # Separate Long and Short signals for clarity
+    print("WALK-FORWARD HORIZON OPTIMIZATION")
-    # Logic: If Z-Score was High (>1), we were betting on a SHORT Spread (Reversion Down)
+    print(f"Train Ratio: {TRAIN_RATIO*100:.0f}% | Profit Target: {PROFIT_THRESHOLD*100:.1f}% | Fee Rate: {FEE_RATE*100:.2f}%")
-    #        If Z-Score was Low (< -1), we were betting on a LONG Spread (Reversion Up)
+    print("=" * 80)
     
-    # Correct Short Signals (Green Triangle Down)
+    for h in horizons:
-    tp_short = test_data[(test_data['prediction'] == 1) & (test_data['actual'] == 1) & (test_data['z_score'] > 0)]
+        result = test_horizon(features, h)
-    fig.add_trace(
+        if result:
-        go.Scatter(x=tp_short.index, y=tp_short['spread'], mode='markers', name='Win: Short Spread', 
+            results.append(result)
-                   marker=dict(symbol='triangle-down', size=12, color='green')),
+            print(f"Horizon {h:3d}h: F1={result['f1_score']:.3f}, "
-        row=1, col=1
+                  f"MAE={result['avg_mae']:.2f}%, "
-    )
+                  f"Net PnL={result['net_pnl']*100:.2f}%, "
+                  f"Trades={result['n_trades']}")
     
-    # Correct Long Signals (Green Triangle Up)
+    return results
-    tp_long = test_data[(test_data['prediction'] == 1) & (test_data['actual'] == 1) & (test_data['z_score'] < 0)]
-    fig.add_trace(
-        go.Scatter(x=tp_long.index, y=tp_long['spread'], mode='markers', name='Win: Long Spread', 
-                   marker=dict(symbol='triangle-up', size=12, color='green')),
-        row=1, col=1
-    )
 
-    # False Short Signals (Red Triangle Down)
-    fp_short = test_data[(test_data['prediction'] == 1) & (test_data['actual'] == 0) & (test_data['z_score'] > 0)]
-    fig.add_trace(
-        go.Scatter(x=fp_short.index, y=fp_short['spread'], mode='markers', name='Loss: Short Spread', 
-                   marker=dict(symbol='triangle-down', size=10, color='red')),
-        row=1, col=1
-    )
-    
-    # False Long Signals (Red Triangle Up)
-    fp_long = test_data[(test_data['prediction'] == 1) & (test_data['actual'] == 0) & (test_data['z_score'] < 0)]
-    fig.add_trace(
-        go.Scatter(x=fp_long.index, y=fp_long['spread'], mode='markers', name='Loss: Long Spread', 
-                   marker=dict(symbol='triangle-up', size=10, color='red')),
-        row=1, col=1
-    )
-
-    # Middle: Inflows (BTC vs ETH)
-    if 'btc_inflow' in test_data.columns:
-        fig.add_trace(
-            go.Bar(x=test_data.index, y=test_data['btc_inflow'], name='BTC Inflow', marker_color='orange', opacity=0.6),
-            row=2, col=1
-        )
-    if 'eth_inflow' in test_data.columns:
-        fig.add_trace(
-            go.Bar(x=test_data.index, y=test_data['eth_inflow'], name='ETH Inflow', marker_color='purple', opacity=0.6),
-            row=2, col=1
-        )
-
-    # Bottom: Z-Score
-    fig.add_trace(
-        go.Scatter(x=test_data.index, y=test_data['z_score'], mode='lines', name='Z-Score', line=dict(color='blue'), opacity=0.5),
-        row=3, col=1
-    )
-    fig.add_hline(y=2, line_dash="dash", line_color="red", row=3, col=1)
-    fig.add_hline(y=-2, line_dash="dash", line_color="green", row=3, col=1)
-
-    # Probability (Secondary Y for Row 3)
-    fig.add_trace(
-        go.Scatter(x=test_data.index, y=test_data['prob'], mode='lines', name='Prob', line=dict(color='cyan', width=1.5), yaxis='y4'),
-        row=3, col=1
-    )
-
-    fig.update_layout(
-        title='Regime Detection Analysis (with CryptoQuant)',
-        autosize=True,
-        height=None,
-        hovermode='x unified',
-        yaxis4=dict(title='Probability', overlaying='y3', side='right', range=[0, 1], showgrid=False),
-        template="plotly_dark",
-        margin=dict(l=10, r=10, t=40, b=10),
-        barmode='group'
-    )
-
-    # Update all x-axes to ensure spikes are visible everywhere
-    fig.update_xaxes(
-        showspikes=True,
-        spikemode='across',
-        spikesnap='cursor',
-        showline=False,
-        showgrid=True,
-        spikedash='dot',
-        spikecolor='white',  # Make it bright to see
-        spikethickness=1,
-    )
-    
-    fig.update_layout(
-        title='Regime Detection Analysis (with CryptoQuant)',
-        autosize=True,
-        height=None,
-        hovermode='x unified', # Keep unified hover for data reading
-        yaxis4=dict(title='Probability', overlaying='y3', side='right', range=[0, 1], showgrid=False),
-        template="plotly_dark",
-        margin=dict(l=10, r=10, t=40, b=10),
-        barmode='group'
-    )
-
-    output_path = "research/regime_results.html"
-    fig.write_html(
-        output_path, 
-        config={'responsive': True, 'scrollZoom': True},
-        include_plotlyjs='cdn',
-        full_html=True,
-        default_height='100vh',
-        default_width='100%'
-    )
-    print(f"Interactive plot saved to {output_path}")
 
 def main():
-    # 1. Load CQ Data first to determine valid date range
+    """Main research function."""
-    cq_path = "data/cq_training_data.csv"
+    # Load data
-    cq_df = load_cryptoquant_data(cq_path)
+    df_btc, df_eth = load_data()
+    cq_df = load_cryptoquant_data()
     
-    start_date = None
+    # Calculate features
-    end_date = None
+    features = calculate_features(df_btc, df_eth, cq_df)
+    logger.info(f"Calculated {len(features)} feature rows with {len(features.columns)} columns")
     
-    if cq_df is not None and not cq_df.empty:
+    # Test horizons from 6h to 150h
-        start_date = cq_df.index.min().strftime('%Y-%m-%d')
+    horizons = list(range(6, 151, 6))  # 6, 12, 18, ..., 150
-        end_date = cq_df.index.max().strftime('%Y-%m-%d')
-        print(f"CryptoQuant Data Range: {start_date} to {end_date}")
     
-    # 2. Get Market Data (Aligned to CQ range)
+    results = test_horizons(features, horizons)
-    df_btc, df_eth = prepare_data(
-        "BTC-USDT", "ETH-USDT", 
-        timeframe="1h", 
-        start_date=start_date, 
-        end_date=end_date
-    )
     
-    # 3. Calculate Features
+    if not results:
-    print("Calculating advanced regime features...")
+        print("No valid results!")
-    data = calculate_features(df_btc, df_eth, cq_df=cq_df, window=24)
-    
-    if data.empty:
-        print("Error: No overlapping data found between Price and CryptoQuant data.")
         return
     
-    # 4. Train & Evaluate
+    # Find best by different metrics
-    model, X_test, y_test, y_pred, y_prob = train_regime_model(data)
+    results_df = pd.DataFrame(results)
+    
+    print("\n" + "=" * 80)
+    print("BEST HORIZONS BY METRIC")
+    print("=" * 80)
+    
+    best_f1 = results_df.loc[results_df['f1_score'].idxmax()]
+    print(f"Best F1 Score:  {best_f1['horizon']:.0f}h (F1={best_f1['f1_score']:.3f})")
+    
+    best_pnl = results_df.loc[results_df['net_pnl'].idxmax()]
+    print(f"Best Net PnL:   {best_pnl['horizon']:.0f}h (PnL={best_pnl['net_pnl']*100:.2f}%)")
+    
+    lowest_mae = results_df.loc[results_df['avg_mae'].idxmin()]
+    print(f"Lowest MAE:     {lowest_mae['horizon']:.0f}h (MAE={lowest_mae['avg_mae']:.2f}%)")
+    
+    # Save results
+    output_path = "research/horizon_optimization_results.csv"
+    results_df.to_csv(output_path, index=False)
+    print(f"\nResults saved to {output_path}")
+    
+    return results_df
 
-    # 5. Plot
-    plot_interactive_results(data, y_test, y_pred, y_prob)
 
 if __name__ == "__main__":
     main()

scripts/download_multi_pair_data.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+"""
+Download historical data for Multi-Pair Divergence Strategy.
+
+Downloads 1h OHLCV data for top 10 cryptocurrencies from OKX.
+"""
+import sys
+sys.path.insert(0, '.')
+
+from engine.data_manager import DataManager
+from engine.market import MarketType
+from engine.logging_config import setup_logging, get_logger
+from strategies.multi_pair import MultiPairConfig
+
+logger = get_logger(__name__)
+
+
+def main():
+    """Download data for all configured assets."""
+    setup_logging()
+    
+    config = MultiPairConfig()
+    dm = DataManager()
+    
+    logger.info("Downloading data for %d assets...", len(config.assets))
+    
+    for symbol in config.assets:
+        logger.info("Downloading %s perpetual 1h data...", symbol)
+        try:
+            df = dm.download_data(
+                exchange_id=config.exchange_id,
+                symbol=symbol,
+                timeframe=config.timeframe,
+                market_type=MarketType.PERPETUAL
+            )
+            if df is not None:
+                logger.info("Downloaded %d candles for %s", len(df), symbol)
+            else:
+                logger.warning("No data downloaded for %s", symbol)
+        except Exception as e:
+            logger.error("Failed to download %s: %s", symbol, e)
+    
+    logger.info("Download complete!")
+
+
+if __name__ == "__main__":
+    main()

scripts/run_multi_pair_backtest.py

@@ -0,0 +1,156 @@
+#!/usr/bin/env python3
+"""
+Run Multi-Pair Divergence Strategy backtest and compare with baseline.
+
+Compares the multi-pair strategy against the single-pair BTC/ETH regime strategy.
+"""
+import sys
+sys.path.insert(0, '.')
+
+from engine.backtester import Backtester
+from engine.data_manager import DataManager
+from engine.logging_config import setup_logging, get_logger
+from engine.reporting import Reporter
+from strategies.multi_pair import MultiPairDivergenceStrategy, MultiPairConfig
+from strategies.regime_strategy import RegimeReversionStrategy
+from engine.market import MarketType
+
+logger = get_logger(__name__)
+
+
+def run_baseline():
+    """Run baseline BTC/ETH regime strategy."""
+    logger.info("=" * 60)
+    logger.info("BASELINE: BTC/ETH Regime Reversion Strategy")
+    logger.info("=" * 60)
+    
+    dm = DataManager()
+    bt = Backtester(dm)
+    
+    strategy = RegimeReversionStrategy()
+    
+    result = bt.run_strategy(
+        strategy,
+        'okx',
+        'ETH-USDT',
+        timeframe='1h',
+        init_cash=10000
+    )
+    
+    logger.info("Baseline Results:")
+    logger.info("  Total Return: %.2f%%", result.portfolio.total_return() * 100)
+    logger.info("  Total Trades: %d", result.portfolio.trades.count())
+    logger.info("  Win Rate: %.1f%%", result.portfolio.trades.win_rate() * 100)
+    
+    return result
+
+
+def run_multi_pair(assets: list[str] | None = None):
+    """Run multi-pair divergence strategy."""
+    logger.info("=" * 60)
+    logger.info("MULTI-PAIR: Divergence Selection Strategy")
+    logger.info("=" * 60)
+    
+    dm = DataManager()
+    bt = Backtester(dm)
+    
+    # Use provided assets or default
+    if assets:
+        config = MultiPairConfig(assets=assets)
+    else:
+        config = MultiPairConfig()
+    
+    logger.info("Configured %d assets, %d pairs", len(config.assets), config.get_pair_count())
+    
+    strategy = MultiPairDivergenceStrategy(config=config)
+    
+    result = bt.run_strategy(
+        strategy,
+        'okx',
+        'ETH-USDT',  # Reference asset (not used for trading, just index alignment)
+        timeframe='1h',
+        init_cash=10000
+    )
+    
+    logger.info("Multi-Pair Results:")
+    logger.info("  Total Return: %.2f%%", result.portfolio.total_return() * 100)
+    logger.info("  Total Trades: %d", result.portfolio.trades.count())
+    logger.info("  Win Rate: %.1f%%", result.portfolio.trades.win_rate() * 100)
+    
+    return result
+
+
+def compare_results(baseline, multi_pair):
+    """Compare and display results."""
+    logger.info("=" * 60)
+    logger.info("COMPARISON")
+    logger.info("=" * 60)
+    
+    baseline_return = baseline.portfolio.total_return() * 100
+    multi_return = multi_pair.portfolio.total_return() * 100
+    
+    improvement = multi_return - baseline_return
+    
+    logger.info("Baseline Return:    %.2f%%", baseline_return)
+    logger.info("Multi-Pair Return:  %.2f%%", multi_return)
+    logger.info("Improvement:        %.2f%% (%.1fx)", 
+                improvement, 
+                multi_return / baseline_return if baseline_return != 0 else 0)
+    
+    baseline_trades = baseline.portfolio.trades.count()
+    multi_trades = multi_pair.portfolio.trades.count()
+    
+    logger.info("Baseline Trades:    %d", baseline_trades)
+    logger.info("Multi-Pair Trades:  %d", multi_trades)
+    
+    return {
+        'baseline_return': baseline_return,
+        'multi_pair_return': multi_return,
+        'improvement': improvement,
+        'baseline_trades': baseline_trades,
+        'multi_pair_trades': multi_trades
+    }
+
+
+def main():
+    """Main entry point."""
+    setup_logging()
+    
+    # Check available assets
+    dm = DataManager()
+    available = []
+    
+    for symbol in MultiPairConfig().assets:
+        try:
+            dm.load_data('okx', symbol, '1h', market_type=MarketType.PERPETUAL)
+            available.append(symbol)
+        except FileNotFoundError:
+            pass
+    
+    if len(available) < 2:
+        logger.error(
+            "Need at least 2 assets to run multi-pair strategy. "
+            "Run: uv run python scripts/download_multi_pair_data.py"
+        )
+        return
+    
+    logger.info("Found data for %d assets: %s", len(available), available)
+    
+    # Run baseline
+    baseline_result = run_baseline()
+    
+    # Run multi-pair
+    multi_result = run_multi_pair(available)
+    
+    # Compare
+    comparison = compare_results(baseline_result, multi_result)
+    
+    # Save reports
+    reporter = Reporter()
+    reporter.save_reports(multi_result, "multi_pair_divergence")
+    
+    logger.info("Reports saved to backtest_logs/")
+
+
+if __name__ == "__main__":
+    main()

strategies/factory.py

@@ -36,6 +36,8 @@ def _build_registry() -> dict[str, StrategyConfig]:
     # Import here to avoid circular imports
     from strategies.examples import MaCrossStrategy, RsiStrategy
     from strategies.supertrend import MetaSupertrendStrategy
+    from strategies.regime_strategy import RegimeReversionStrategy
+    from strategies.multi_pair import MultiPairDivergenceStrategy, MultiPairConfig
     
     return {
         "rsi": StrategyConfig(
@@ -76,6 +78,40 @@ def _build_registry() -> dict[str, StrategyConfig]:
                 'period3': 12, 'multiplier3': 1.0
             }
         ),
+        "regime": StrategyConfig(
+            strategy_class=RegimeReversionStrategy,
+            default_params={
+                # Optimal from walk-forward research (research/horizon_optimization_results.csv)
+                'horizon': 102,           # 4.25 days - best Net PnL
+                'z_window': 24,           # 24h rolling Z-score window
+                'z_entry_threshold': 1.0, # Enter when |Z| > 1.0
+                'profit_target': 0.005,   # 0.5% target for ML labels
+                'stop_loss': 0.06,        # 6% stop loss
+                'take_profit': 0.05,      # 5% take profit
+                'train_ratio': 0.7,       # 70% train / 30% test
+                'trend_window': 0,        # Disabled SMA filter
+                'use_funding_filter': True, # Enabled Funding filter
+                'funding_threshold': 0.005  # 0.005% threshold (Proven profitable)
+            },
+            grid_params={
+                'horizon': [84, 96, 102, 108, 120],
+                'z_entry_threshold': [0.8, 1.0, 1.2],
+                'stop_loss': [0.04, 0.06, 0.08],
+                'funding_threshold': [0.005, 0.01, 0.02]
+            }
+        ),
+        "multi_pair": StrategyConfig(
+            strategy_class=MultiPairDivergenceStrategy,
+            default_params={
+                # Multi-pair divergence strategy uses config object
+                # Parameters passed here will override MultiPairConfig defaults
+            },
+            grid_params={
+                'z_entry_threshold': [0.8, 1.0, 1.2],
+                'prob_threshold': [0.4, 0.5, 0.6],
+                'correlation_threshold': [0.75, 0.85, 0.95]
+            }
+        )
     }
 
 

strategies/multi_pair/__init__.py

@@ -0,0 +1,24 @@
+"""
+Multi-Pair Divergence Selection Strategy.
+
+Extends regime detection to multiple cryptocurrency pairs and dynamically
+selects the most divergent pair for trading.
+"""
+from .config import MultiPairConfig
+from .pair_scanner import PairScanner, TradingPair
+from .correlation import CorrelationFilter
+from .feature_engine import MultiPairFeatureEngine
+from .divergence_scorer import DivergenceScorer
+from .strategy import MultiPairDivergenceStrategy
+from .funding import FundingRateFetcher
+
+__all__ = [
+    "MultiPairConfig",
+    "PairScanner",
+    "TradingPair",
+    "CorrelationFilter",
+    "MultiPairFeatureEngine",
+    "DivergenceScorer",
+    "MultiPairDivergenceStrategy",
+    "FundingRateFetcher",
+]

strategies/multi_pair/config.py

@@ -0,0 +1,88 @@
+"""
+Configuration for Multi-Pair Divergence Strategy.
+"""
+from dataclasses import dataclass, field
+
+
+@dataclass
+class MultiPairConfig:
+    """
+    Configuration parameters for multi-pair divergence strategy.
+    
+    Attributes:
+        assets: List of asset symbols to analyze (top 10 by market cap)
+        z_window: Rolling window for Z-Score calculation (hours)
+        z_entry_threshold: Minimum |Z-Score| to consider for entry
+        prob_threshold: Minimum ML probability to consider for entry
+        correlation_threshold: Max correlation to allow between pairs
+        correlation_window: Rolling window for correlation (hours)
+        atr_period: ATR lookback period for dynamic stops
+        sl_atr_multiplier: Stop-loss as multiple of ATR
+        tp_atr_multiplier: Take-profit as multiple of ATR
+        train_ratio: Walk-forward train/test split ratio
+        horizon: Look-ahead horizon for target calculation (hours)
+        profit_target: Minimum profit threshold for target labels
+        funding_threshold: Funding rate threshold for filtering
+    """
+    # Asset Universe
+    assets: list[str] = field(default_factory=lambda: [
+        "BTC-USDT", "ETH-USDT", "SOL-USDT", "XRP-USDT", "BNB-USDT",
+        "DOGE-USDT", "ADA-USDT", "AVAX-USDT", "LINK-USDT", "DOT-USDT"
+    ])
+    
+    # Z-Score Thresholds
+    z_window: int = 24
+    z_entry_threshold: float = 1.0
+    
+    # ML Thresholds
+    prob_threshold: float = 0.5
+    train_ratio: float = 0.7
+    horizon: int = 102
+    profit_target: float = 0.005
+    
+    # Correlation Filtering
+    correlation_threshold: float = 0.85
+    correlation_window: int = 168  # 7 days in hours
+    
+    # Risk Management - ATR-Based Stops
+    # SL/TP are calculated as multiples of ATR
+    # Mean ATR for crypto is ~0.6% per hour, so:
+    # - 10x ATR = ~6% SL (matches previous fixed 6%)
+    # - 8x ATR = ~5% TP (matches previous fixed 5%)
+    atr_period: int = 14  # ATR lookback period (hours for 1h timeframe)
+    sl_atr_multiplier: float = 10.0  # Stop-loss = entry +/- (ATR * multiplier)
+    tp_atr_multiplier: float = 8.0  # Take-profit = entry +/- (ATR * multiplier)
+    
+    # Fallback fixed percentages (used if ATR is unavailable)
+    base_sl_pct: float = 0.06
+    base_tp_pct: float = 0.05
+    
+    # ATR bounds to prevent extreme stops
+    min_sl_pct: float = 0.02  # Minimum 2% stop-loss
+    max_sl_pct: float = 0.10  # Maximum 10% stop-loss
+    min_tp_pct: float = 0.02  # Minimum 2% take-profit
+    max_tp_pct: float = 0.15  # Maximum 15% take-profit
+    
+    volatility_window: int = 24
+    
+    # Funding Rate Filter
+    # OKX funding rates are typically 0.0001 (0.01%) per 8h
+    # Extreme funding is > 0.0005 (0.05%) which indicates crowded trade
+    funding_threshold: float = 0.0005  # 0.05% - filter extreme funding
+    
+    # Trade Management
+    # Note: Setting min_hold_bars=0 and z_exit_threshold=0 gives best results
+    # The mean-reversion exit at Z=0 is the primary profit driver
+    min_hold_bars: int = 0  # Disabled - let mean reversion drive exits
+    switch_threshold: float = 999.0  # Disabled - don't switch mid-trade
+    cooldown_bars: int = 0  # Disabled - enter when signal appears
+    z_exit_threshold: float = 0.0  # Exit at Z=0 (mean reversion complete)
+    
+    # Exchange
+    exchange_id: str = "okx"
+    timeframe: str = "1h"
+    
+    def get_pair_count(self) -> int:
+        """Calculate number of unique pairs from asset list."""
+        n = len(self.assets)
+        return n * (n - 1) // 2

strategies/multi_pair/correlation.py

@@ -0,0 +1,173 @@
+"""
+Correlation Filter for Multi-Pair Divergence Strategy.
+
+Calculates rolling correlation matrix and filters pairs
+to avoid highly correlated positions.
+"""
+import pandas as pd
+import numpy as np
+
+from engine.logging_config import get_logger
+from .config import MultiPairConfig
+from .pair_scanner import TradingPair
+
+logger = get_logger(__name__)
+
+
+class CorrelationFilter:
+    """
+    Calculates and filters based on asset correlations.
+    
+    Uses rolling correlation of returns to identify assets
+    moving together, avoiding redundant positions.
+    """
+    
+    def __init__(self, config: MultiPairConfig):
+        self.config = config
+        self._correlation_matrix: pd.DataFrame | None = None
+        self._last_update_idx: int = -1
+    
+    def calculate_correlation_matrix(
+        self, 
+        price_data: dict[str, pd.Series],
+        current_idx: int | None = None
+    ) -> pd.DataFrame:
+        """
+        Calculate rolling correlation matrix between all assets.
+        
+        Args:
+            price_data: Dictionary mapping asset symbols to price series
+            current_idx: Current bar index (for caching)
+            
+        Returns:
+            Correlation matrix DataFrame
+        """
+        # Use cached if recent
+        if (
+            current_idx is not None 
+            and self._correlation_matrix is not None
+            and current_idx - self._last_update_idx < 24  # Update every 24 bars
+        ):
+            return self._correlation_matrix
+        
+        # Calculate returns
+        returns = {}
+        for symbol, prices in price_data.items():
+            returns[symbol] = prices.pct_change()
+        
+        returns_df = pd.DataFrame(returns)
+        
+        # Rolling correlation
+        window = self.config.correlation_window
+        
+        # Get latest correlation (last row of rolling correlation)
+        if len(returns_df) >= window:
+            rolling_corr = returns_df.rolling(window=window).corr()
+            # Extract last timestamp correlation matrix
+            last_idx = returns_df.index[-1]
+            corr_matrix = rolling_corr.loc[last_idx]
+        else:
+            # Fallback to full-period correlation if not enough data
+            corr_matrix = returns_df.corr()
+        
+        self._correlation_matrix = corr_matrix
+        if current_idx is not None:
+            self._last_update_idx = current_idx
+        
+        return corr_matrix
+    
+    def filter_pairs(
+        self,
+        pairs: list[TradingPair],
+        current_position_asset: str | None,
+        price_data: dict[str, pd.Series],
+        current_idx: int | None = None
+    ) -> list[TradingPair]:
+        """
+        Filter pairs based on correlation with current position.
+        
+        If we have an open position in an asset, exclude pairs where
+        either asset is highly correlated with the held asset.
+        
+        Args:
+            pairs: List of candidate pairs
+            current_position_asset: Currently held asset (or None)
+            price_data: Dictionary of price series by symbol
+            current_idx: Current bar index for caching
+            
+        Returns:
+            Filtered list of pairs
+        """
+        if current_position_asset is None:
+            return pairs
+        
+        corr_matrix = self.calculate_correlation_matrix(price_data, current_idx)
+        threshold = self.config.correlation_threshold
+        
+        filtered = []
+        for pair in pairs:
+            # Check correlation of base and quote with held asset
+            base_corr = self._get_correlation(
+                corr_matrix, pair.base_asset, current_position_asset
+            )
+            quote_corr = self._get_correlation(
+                corr_matrix, pair.quote_asset, current_position_asset
+            )
+            
+            # Filter if either asset highly correlated with position
+            if abs(base_corr) > threshold or abs(quote_corr) > threshold:
+                logger.debug(
+                    "Filtered %s: base_corr=%.2f, quote_corr=%.2f (held: %s)",
+                    pair.name, base_corr, quote_corr, current_position_asset
+                )
+                continue
+            
+            filtered.append(pair)
+        
+        if len(filtered) < len(pairs):
+            logger.info(
+                "Correlation filter: %d/%d pairs remaining (held: %s)",
+                len(filtered), len(pairs), current_position_asset
+            )
+        
+        return filtered
+    
+    def _get_correlation(
+        self, 
+        corr_matrix: pd.DataFrame, 
+        asset1: str, 
+        asset2: str
+    ) -> float:
+        """
+        Get correlation between two assets from matrix.
+        
+        Args:
+            corr_matrix: Correlation matrix
+            asset1: First asset symbol
+            asset2: Second asset symbol
+            
+        Returns:
+            Correlation coefficient (-1 to 1), or 0 if not found
+        """
+        if asset1 == asset2:
+            return 1.0
+        
+        try:
+            return corr_matrix.loc[asset1, asset2]
+        except KeyError:
+            return 0.0
+    
+    def get_correlation_report(
+        self, 
+        price_data: dict[str, pd.Series]
+    ) -> pd.DataFrame:
+        """
+        Generate a readable correlation report.
+        
+        Args:
+            price_data: Dictionary of price series
+            
+        Returns:
+            Correlation matrix as DataFrame
+        """
+        return self.calculate_correlation_matrix(price_data)

strategies/multi_pair/divergence_scorer.py

@@ -0,0 +1,311 @@
+"""
+Divergence Scorer for Multi-Pair Strategy.
+
+Ranks pairs by divergence score and selects the best candidate.
+"""
+from dataclasses import dataclass
+from typing import Optional
+
+import pandas as pd
+import numpy as np
+from sklearn.ensemble import RandomForestClassifier
+import pickle
+from pathlib import Path
+
+from engine.logging_config import get_logger
+from .config import MultiPairConfig
+from .pair_scanner import TradingPair
+
+logger = get_logger(__name__)
+
+
+@dataclass
+class DivergenceSignal:
+    """
+    Signal for a divergent pair.
+    
+    Attributes:
+        pair: Trading pair
+        z_score: Current Z-Score of the spread
+        probability: ML model probability of profitable reversion
+        divergence_score: Combined score (|z_score| * probability)
+        direction: 'long' or 'short' (relative to base asset)
+        base_price: Current price of base asset
+        quote_price: Current price of quote asset
+        atr: Average True Range in price units
+        atr_pct: ATR as percentage of price
+    """
+    pair: TradingPair
+    z_score: float
+    probability: float
+    divergence_score: float
+    direction: str
+    base_price: float
+    quote_price: float
+    atr: float
+    atr_pct: float
+    timestamp: pd.Timestamp
+
+
+class DivergenceScorer:
+    """
+    Scores and ranks pairs by divergence potential.
+    
+    Uses ML model predictions combined with Z-Score magnitude
+    to identify the most promising mean-reversion opportunity.
+    """
+    
+    def __init__(self, config: MultiPairConfig, model_path: str = "data/multi_pair_model.pkl"):
+        self.config = config
+        self.model_path = Path(model_path)
+        self.model: RandomForestClassifier | None = None
+        self.feature_cols: list[str] | None = None
+        self._load_model()
+    
+    def _load_model(self) -> None:
+        """Load pre-trained model if available."""
+        if self.model_path.exists():
+            try:
+                with open(self.model_path, 'rb') as f:
+                    saved = pickle.load(f)
+                    self.model = saved['model']
+                    self.feature_cols = saved['feature_cols']
+                logger.info("Loaded model from %s", self.model_path)
+            except Exception as e:
+                logger.warning("Could not load model: %s", e)
+    
+    def save_model(self) -> None:
+        """Save trained model."""
+        if self.model is None:
+            return
+        
+        self.model_path.parent.mkdir(parents=True, exist_ok=True)
+        with open(self.model_path, 'wb') as f:
+            pickle.dump({
+                'model': self.model,
+                'feature_cols': self.feature_cols,
+            }, f)
+        logger.info("Saved model to %s", self.model_path)
+    
+    def train_model(
+        self,
+        combined_features: pd.DataFrame,
+        pair_features: dict[str, pd.DataFrame]
+    ) -> None:
+        """
+        Train universal model on all pairs.
+        
+        Args:
+            combined_features: Combined feature DataFrame from all pairs
+            pair_features: Individual pair feature DataFrames (for target calculation)
+        """
+        logger.info("Training universal model on %d samples...", len(combined_features))
+        
+        z_thresh = self.config.z_entry_threshold
+        horizon = self.config.horizon
+        profit_target = self.config.profit_target
+        
+        # Calculate targets for each pair
+        all_targets = []
+        all_features = []
+        
+        for pair_id, features in pair_features.items():
+            if len(features) < horizon + 50:
+                continue
+            
+            spread = features['spread']
+            z_score = features['z_score']
+            
+            # Future price movements
+            future_min = spread.rolling(window=horizon).min().shift(-horizon)
+            future_max = spread.rolling(window=horizon).max().shift(-horizon)
+            
+            # Target labels
+            target_short = spread * (1 - profit_target)
+            target_long = spread * (1 + profit_target)
+            
+            success_short = (z_score > z_thresh) & (future_min < target_short)
+            success_long = (z_score < -z_thresh) & (future_max > target_long)
+            
+            targets = np.select([success_short, success_long], [1, 1], default=0)
+            
+            # Valid mask (exclude rows without complete future data)
+            valid_mask = future_min.notna() & future_max.notna()
+            
+            # Collect valid samples
+            valid_features = features[valid_mask]
+            valid_targets = targets[valid_mask.values]
+            
+            if len(valid_features) > 0:
+                all_features.append(valid_features)
+                all_targets.extend(valid_targets)
+        
+        if not all_features:
+            logger.warning("No valid training samples")
+            return
+        
+        # Combine all training data
+        X_df = pd.concat(all_features, ignore_index=True)
+        y = np.array(all_targets)
+        
+        # Get feature columns
+        exclude_cols = [
+            'pair_id', 'base_asset', 'quote_asset',
+            'spread', 'base_close', 'quote_close', 'base_volume'
+        ]
+        self.feature_cols = [c for c in X_df.columns if c not in exclude_cols]
+        
+        # Prepare features
+        X = X_df[self.feature_cols].fillna(0)
+        X = X.replace([np.inf, -np.inf], 0)
+        
+        # Train model
+        self.model = RandomForestClassifier(
+            n_estimators=300,
+            max_depth=5,
+            min_samples_leaf=30,
+            class_weight={0: 1, 1: 3},
+            random_state=42
+        )
+        self.model.fit(X, y)
+        
+        logger.info(
+            "Model trained on %d samples, %d features, %.1f%% positive class",
+            len(X), len(self.feature_cols), y.mean() * 100
+        )
+        self.save_model()
+    
+    def score_pairs(
+        self,
+        pair_features: dict[str, pd.DataFrame],
+        pairs: list[TradingPair],
+        timestamp: pd.Timestamp | None = None
+    ) -> list[DivergenceSignal]:
+        """
+        Score all pairs and return ranked signals.
+        
+        Args:
+            pair_features: Feature DataFrames by pair_id
+            pairs: List of TradingPair objects
+            timestamp: Current timestamp for feature extraction
+            
+        Returns:
+            List of DivergenceSignal sorted by score (descending)
+        """
+        if self.model is None:
+            logger.warning("Model not trained, returning empty signals")
+            return []
+        
+        signals = []
+        pair_map = {p.pair_id: p for p in pairs}
+        
+        for pair_id, features in pair_features.items():
+            if pair_id not in pair_map:
+                continue
+            
+            pair = pair_map[pair_id]
+            
+            # Get latest features
+            if timestamp is not None:
+                valid = features[features.index <= timestamp]
+                if len(valid) == 0:
+                    continue
+                latest = valid.iloc[-1]
+                ts = valid.index[-1]
+            else:
+                latest = features.iloc[-1]
+                ts = features.index[-1]
+            
+            z_score = latest['z_score']
+            
+            # Skip if Z-score below threshold
+            if abs(z_score) < self.config.z_entry_threshold:
+                continue
+            
+            # Prepare features for prediction
+            feature_row = latest[self.feature_cols].fillna(0).infer_objects(copy=False)
+            feature_row = feature_row.replace([np.inf, -np.inf], 0)
+            X = pd.DataFrame([feature_row.values], columns=self.feature_cols)
+            
+            # Predict probability
+            prob = self.model.predict_proba(X)[0, 1]
+            
+            # Skip if probability below threshold
+            if prob < self.config.prob_threshold:
+                continue
+            
+            # Apply funding rate filter
+            # Block trades where funding opposes our direction
+            base_funding = latest.get('base_funding', 0) or 0
+            funding_thresh = self.config.funding_threshold
+            
+            if z_score > 0:  # Short signal
+                # High negative funding = shorts are paying -> skip
+                if base_funding < -funding_thresh:
+                    logger.debug(
+                        "Skipping %s short: funding too negative (%.4f)",
+                        pair.name, base_funding
+                    )
+                    continue
+            else:  # Long signal
+                # High positive funding = longs are paying -> skip
+                if base_funding > funding_thresh:
+                    logger.debug(
+                        "Skipping %s long: funding too positive (%.4f)",
+                        pair.name, base_funding
+                    )
+                    continue
+            
+            # Calculate divergence score
+            divergence_score = abs(z_score) * prob
+            
+            # Determine direction
+            # Z > 0: Spread high (base expensive vs quote) -> Short base
+            # Z < 0: Spread low (base cheap vs quote) -> Long base
+            direction = 'short' if z_score > 0 else 'long'
+            
+            signal = DivergenceSignal(
+                pair=pair,
+                z_score=z_score,
+                probability=prob,
+                divergence_score=divergence_score,
+                direction=direction,
+                base_price=latest['base_close'],
+                quote_price=latest['quote_close'],
+                atr=latest.get('atr_base', 0),
+                atr_pct=latest.get('atr_pct_base', 0.02),
+                timestamp=ts
+            )
+            signals.append(signal)
+        
+        # Sort by divergence score (highest first)
+        signals.sort(key=lambda s: s.divergence_score, reverse=True)
+        
+        if signals:
+            logger.debug(
+                "Scored %d pairs, top: %s (score=%.3f, z=%.2f, p=%.2f)",
+                len(signals),
+                signals[0].pair.name,
+                signals[0].divergence_score,
+                signals[0].z_score,
+                signals[0].probability
+            )
+        
+        return signals
+    
+    def select_best_pair(
+        self,
+        signals: list[DivergenceSignal]
+    ) -> DivergenceSignal | None:
+        """
+        Select the best pair from scored signals.
+        
+        Args:
+            signals: List of DivergenceSignal (pre-sorted by score)
+            
+        Returns:
+            Best signal or None if no valid candidates
+        """
+        if not signals:
+            return None
+        return signals[0]

strategies/multi_pair/feature_engine.py

@@ -0,0 +1,433 @@
+"""
+Feature Engineering for Multi-Pair Divergence Strategy.
+
+Calculates features for all pairs in the universe, including
+spread technicals, volatility, and on-chain data.
+"""
+import pandas as pd
+import numpy as np
+import ta
+
+from engine.logging_config import get_logger
+from engine.data_manager import DataManager
+from engine.market import MarketType
+from .config import MultiPairConfig
+from .pair_scanner import TradingPair
+from .funding import FundingRateFetcher
+
+logger = get_logger(__name__)
+
+
+class MultiPairFeatureEngine:
+    """
+    Calculates features for multiple trading pairs.
+    
+    Generates consistent feature sets across all pairs for
+    the universal ML model.
+    """
+    
+    def __init__(self, config: MultiPairConfig):
+        self.config = config
+        self.dm = DataManager()
+        self.funding_fetcher = FundingRateFetcher()
+        self._funding_data: pd.DataFrame | None = None
+    
+    def load_all_assets(
+        self,
+        start_date: str | None = None,
+        end_date: str | None = None
+    ) -> dict[str, pd.DataFrame]:
+        """
+        Load OHLCV data for all assets in the universe.
+        
+        Args:
+            start_date: Start date filter (YYYY-MM-DD)
+            end_date: End date filter (YYYY-MM-DD)
+            
+        Returns:
+            Dictionary mapping symbol to OHLCV DataFrame
+        """
+        data = {}
+        market_type = MarketType.PERPETUAL
+        
+        for symbol in self.config.assets:
+            try:
+                df = self.dm.load_data(
+                    self.config.exchange_id,
+                    symbol,
+                    self.config.timeframe,
+                    market_type
+                )
+                
+                # Apply date filters
+                if start_date:
+                    df = df[df.index >= pd.Timestamp(start_date, tz="UTC")]
+                if end_date:
+                    df = df[df.index <= pd.Timestamp(end_date, tz="UTC")]
+                
+                if len(df) >= 200:  # Minimum data requirement
+                    data[symbol] = df
+                    logger.debug("Loaded %s: %d bars", symbol, len(df))
+                else:
+                    logger.warning(
+                        "Skipping %s: insufficient data (%d bars)",
+                        symbol, len(df)
+                    )
+            except FileNotFoundError:
+                logger.warning("Data not found for %s", symbol)
+            except Exception as e:
+                logger.error("Error loading %s: %s", symbol, e)
+        
+        logger.info("Loaded %d/%d assets", len(data), len(self.config.assets))
+        return data
+    
+    def load_funding_data(
+        self,
+        start_date: str | None = None,
+        end_date: str | None = None,
+        use_cache: bool = True
+    ) -> pd.DataFrame:
+        """
+        Load funding rate data for all assets.
+        
+        Args:
+            start_date: Start date filter
+            end_date: End date filter
+            use_cache: Whether to use cached data
+            
+        Returns:
+            DataFrame with funding rates for all assets
+        """
+        self._funding_data = self.funding_fetcher.get_funding_data(
+            self.config.assets,
+            start_date=start_date,
+            end_date=end_date,
+            use_cache=use_cache
+        )
+        
+        if self._funding_data is not None and not self._funding_data.empty:
+            logger.info(
+                "Loaded funding data: %d rows, %d assets",
+                len(self._funding_data),
+                len(self._funding_data.columns)
+            )
+        else:
+            logger.warning("No funding data available")
+        
+        return self._funding_data
+    
+    def calculate_pair_features(
+        self,
+        pair: TradingPair,
+        asset_data: dict[str, pd.DataFrame],
+        on_chain_data: pd.DataFrame | None = None
+    ) -> pd.DataFrame | None:
+        """
+        Calculate features for a single pair.
+        
+        Args:
+            pair: Trading pair
+            asset_data: Dictionary of OHLCV DataFrames by symbol
+            on_chain_data: Optional on-chain data (funding, inflows)
+            
+        Returns:
+            DataFrame with features, or None if insufficient data
+        """
+        base = pair.base_asset
+        quote = pair.quote_asset
+        
+        if base not in asset_data or quote not in asset_data:
+            return None
+        
+        df_base = asset_data[base]
+        df_quote = asset_data[quote]
+        
+        # Align indices
+        common_idx = df_base.index.intersection(df_quote.index)
+        if len(common_idx) < 200:
+            logger.debug("Pair %s: insufficient aligned data", pair.name)
+            return None
+        
+        df_a = df_base.loc[common_idx]
+        df_b = df_quote.loc[common_idx]
+        
+        # Calculate spread (base / quote)
+        spread = df_a['close'] / df_b['close']
+        
+        # Z-Score
+        z_window = self.config.z_window
+        rolling_mean = spread.rolling(window=z_window).mean()
+        rolling_std = spread.rolling(window=z_window).std()
+        z_score = (spread - rolling_mean) / rolling_std
+        
+        # Spread Technicals
+        spread_rsi = ta.momentum.RSIIndicator(spread, window=14).rsi()
+        spread_roc = spread.pct_change(periods=5) * 100
+        spread_change_1h = spread.pct_change(periods=1)
+        
+        # Volume Analysis
+        vol_ratio = df_a['volume'] / (df_b['volume'] + 1e-10)
+        vol_ratio_ma = vol_ratio.rolling(window=12).mean()
+        vol_ratio_rel = vol_ratio / (vol_ratio_ma + 1e-10)
+        
+        # Volatility
+        ret_a = df_a['close'].pct_change()
+        ret_b = df_b['close'].pct_change()
+        vol_a = ret_a.rolling(window=z_window).std()
+        vol_b = ret_b.rolling(window=z_window).std()
+        vol_spread_ratio = vol_a / (vol_b + 1e-10)
+        
+        # Realized Volatility (for dynamic SL/TP)
+        realized_vol_a = ret_a.rolling(window=self.config.volatility_window).std()
+        realized_vol_b = ret_b.rolling(window=self.config.volatility_window).std()
+        
+        # ATR (Average True Range) for dynamic stops
+        # ATR = average of max(high-low, |high-prev_close|, |low-prev_close|)
+        high_a, low_a, close_a = df_a['high'], df_a['low'], df_a['close']
+        high_b, low_b, close_b = df_b['high'], df_b['low'], df_b['close']
+        
+        # True Range for base asset
+        tr_a = pd.concat([
+            high_a - low_a,
+            (high_a - close_a.shift(1)).abs(),
+            (low_a - close_a.shift(1)).abs()
+        ], axis=1).max(axis=1)
+        atr_a = tr_a.rolling(window=self.config.atr_period).mean()
+        
+        # True Range for quote asset
+        tr_b = pd.concat([
+            high_b - low_b,
+            (high_b - close_b.shift(1)).abs(),
+            (low_b - close_b.shift(1)).abs()
+        ], axis=1).max(axis=1)
+        atr_b = tr_b.rolling(window=self.config.atr_period).mean()
+        
+        # ATR as percentage of price (normalized)
+        atr_pct_a = atr_a / close_a
+        atr_pct_b = atr_b / close_b
+        
+        # Build feature DataFrame
+        features = pd.DataFrame(index=common_idx)
+        features['pair_id'] = pair.pair_id
+        features['base_asset'] = base
+        features['quote_asset'] = quote
+        
+        # Price data (for reference, not features)
+        features['spread'] = spread
+        features['base_close'] = df_a['close']
+        features['quote_close'] = df_b['close']
+        features['base_volume'] = df_a['volume']
+        
+        # Core Features
+        features['z_score'] = z_score
+        features['spread_rsi'] = spread_rsi
+        features['spread_roc'] = spread_roc
+        features['spread_change_1h'] = spread_change_1h
+        features['vol_ratio'] = vol_ratio
+        features['vol_ratio_rel'] = vol_ratio_rel
+        features['vol_diff_ratio'] = vol_spread_ratio
+        
+        # Volatility for SL/TP
+        features['realized_vol_base'] = realized_vol_a
+        features['realized_vol_quote'] = realized_vol_b
+        features['realized_vol_avg'] = (realized_vol_a + realized_vol_b) / 2
+        
+        # ATR for dynamic stops (in price units and as percentage)
+        features['atr_base'] = atr_a
+        features['atr_quote'] = atr_b
+        features['atr_pct_base'] = atr_pct_a
+        features['atr_pct_quote'] = atr_pct_b
+        features['atr_pct_avg'] = (atr_pct_a + atr_pct_b) / 2
+        
+        # Pair encoding (for universal model)
+        # Using base and quote indices for hierarchical encoding
+        assets = self.config.assets
+        features['base_idx'] = assets.index(base) if base in assets else -1
+        features['quote_idx'] = assets.index(quote) if quote in assets else -1
+        
+        # Add funding and on-chain features
+        # Funding data is always added from self._funding_data (OKX, all 10 assets)
+        # On-chain data is optional (CryptoQuant, BTC/ETH only)
+        features = self._add_on_chain_features(
+            features, on_chain_data, base, quote
+        )
+        
+        # Drop rows with NaN in core features only (not funding/on-chain)
+        core_cols = [
+            'z_score', 'spread_rsi', 'spread_roc', 'spread_change_1h',
+            'vol_ratio', 'vol_ratio_rel', 'vol_diff_ratio',
+            'realized_vol_base', 'realized_vol_quote', 'realized_vol_avg',
+            'atr_base', 'atr_pct_base'  # ATR is core for SL/TP
+        ]
+        features = features.dropna(subset=core_cols)
+        
+        # Fill missing funding/on-chain features with 0 (neutral)
+        optional_cols = [
+            'base_funding', 'quote_funding', 'funding_diff', 'funding_avg',
+            'base_inflow', 'quote_inflow', 'inflow_ratio'
+        ]
+        for col in optional_cols:
+            if col in features.columns:
+                features[col] = features[col].fillna(0)
+        
+        return features
+    
+    def calculate_all_pair_features(
+        self,
+        pairs: list[TradingPair],
+        asset_data: dict[str, pd.DataFrame],
+        on_chain_data: pd.DataFrame | None = None
+    ) -> dict[str, pd.DataFrame]:
+        """
+        Calculate features for all pairs.
+        
+        Args:
+            pairs: List of trading pairs
+            asset_data: Dictionary of OHLCV DataFrames
+            on_chain_data: Optional on-chain data
+            
+        Returns:
+            Dictionary mapping pair_id to feature DataFrame
+        """
+        all_features = {}
+        
+        for pair in pairs:
+            features = self.calculate_pair_features(
+                pair, asset_data, on_chain_data
+            )
+            if features is not None and len(features) > 0:
+                all_features[pair.pair_id] = features
+        
+        logger.info(
+            "Calculated features for %d/%d pairs",
+            len(all_features), len(pairs)
+        )
+        
+        return all_features
+    
+    def get_combined_features(
+        self,
+        pair_features: dict[str, pd.DataFrame],
+        timestamp: pd.Timestamp | None = None
+    ) -> pd.DataFrame:
+        """
+        Combine all pair features into a single DataFrame.
+        
+        Useful for batch model prediction across all pairs.
+        
+        Args:
+            pair_features: Dictionary of feature DataFrames by pair_id
+            timestamp: Optional specific timestamp to filter to
+            
+        Returns:
+            Combined DataFrame with all pairs as rows
+        """
+        if not pair_features:
+            return pd.DataFrame()
+        
+        if timestamp is not None:
+            # Get latest row from each pair at or before timestamp
+            rows = []
+            for pair_id, features in pair_features.items():
+                valid = features[features.index <= timestamp]
+                if len(valid) > 0:
+                    row = valid.iloc[-1:].copy()
+                    rows.append(row)
+            
+            if rows:
+                return pd.concat(rows, ignore_index=False)
+            return pd.DataFrame()
+        
+        # Combine all features (for training)
+        return pd.concat(pair_features.values(), ignore_index=False)
+    
+    def _add_on_chain_features(
+        self,
+        features: pd.DataFrame,
+        on_chain_data: pd.DataFrame | None,
+        base_asset: str,
+        quote_asset: str
+    ) -> pd.DataFrame:
+        """
+        Add on-chain and funding rate features for the pair.
+        
+        Uses funding data from OKX (all 10 assets) and on-chain data
+        from CryptoQuant (BTC/ETH only for inflows).
+        """
+        base_short = base_asset.replace('-USDT', '').lower()
+        quote_short = quote_asset.replace('-USDT', '').lower()
+        
+        # Add funding rates from cached funding data
+        if self._funding_data is not None and not self._funding_data.empty:
+            funding_aligned = self._funding_data.reindex(
+                features.index, method='ffill'
+            )
+            
+            base_funding_col = f'{base_short}_funding'
+            quote_funding_col = f'{quote_short}_funding'
+            
+            if base_funding_col in funding_aligned.columns:
+                features['base_funding'] = funding_aligned[base_funding_col]
+            if quote_funding_col in funding_aligned.columns:
+                features['quote_funding'] = funding_aligned[quote_funding_col]
+            
+            # Funding difference (positive = base has higher funding)
+            if 'base_funding' in features.columns and 'quote_funding' in features.columns:
+                features['funding_diff'] = (
+                    features['base_funding'] - features['quote_funding']
+                )
+                
+                # Funding sentiment: average of both assets
+                features['funding_avg'] = (
+                    features['base_funding'] + features['quote_funding']
+                ) / 2
+        
+        # Add on-chain features from CryptoQuant (BTC/ETH only)
+        if on_chain_data is not None and not on_chain_data.empty:
+            cq_aligned = on_chain_data.reindex(features.index, method='ffill')
+            
+            # Inflows (only available for BTC/ETH)
+            base_inflow_col = f'{base_short}_inflow'
+            quote_inflow_col = f'{quote_short}_inflow'
+            
+            if base_inflow_col in cq_aligned.columns:
+                features['base_inflow'] = cq_aligned[base_inflow_col]
+            if quote_inflow_col in cq_aligned.columns:
+                features['quote_inflow'] = cq_aligned[quote_inflow_col]
+            
+            if 'base_inflow' in features.columns and 'quote_inflow' in features.columns:
+                features['inflow_ratio'] = (
+                    features['base_inflow'] / 
+                    (features['quote_inflow'] + 1)
+                )
+        
+        return features
+    
+    def get_feature_columns(self) -> list[str]:
+        """
+        Get list of feature columns for ML model.
+        
+        Excludes metadata and target-related columns.
+        
+        Returns:
+            List of feature column names
+        """
+        # Core features (always present)
+        core_features = [
+            'z_score', 'spread_rsi', 'spread_roc', 'spread_change_1h',
+            'vol_ratio', 'vol_ratio_rel', 'vol_diff_ratio',
+            'realized_vol_base', 'realized_vol_quote', 'realized_vol_avg',
+            'base_idx', 'quote_idx'
+        ]
+        
+        # Funding features (now available for all 10 assets via OKX)
+        funding_features = [
+            'base_funding', 'quote_funding', 'funding_diff', 'funding_avg'
+        ]
+        
+        # On-chain features (BTC/ETH only via CryptoQuant)
+        onchain_features = [
+            'base_inflow', 'quote_inflow', 'inflow_ratio'
+        ]
+        
+        return core_features + funding_features + onchain_features

strategies/multi_pair/funding.py

@@ -0,0 +1,272 @@
+"""
+Funding Rate Fetcher for Multi-Pair Strategy.
+
+Fetches historical funding rates from OKX for all assets.
+CryptoQuant only supports BTC/ETH, so we use OKX for the full universe.
+"""
+import time
+from pathlib import Path
+from datetime import datetime, timezone
+
+import ccxt
+import pandas as pd
+
+from engine.logging_config import get_logger
+
+logger = get_logger(__name__)
+
+
+class FundingRateFetcher:
+    """
+    Fetches and caches funding rate data from OKX.
+    
+    OKX funding rates are settled every 8 hours (00:00, 08:00, 16:00 UTC).
+    This fetcher retrieves historical funding rate data and aligns it
+    to hourly candles for use in the multi-pair strategy.
+    """
+    
+    def __init__(self, cache_dir: str = "data/funding"):
+        self.cache_dir = Path(cache_dir)
+        self.cache_dir.mkdir(parents=True, exist_ok=True)
+        self.exchange: ccxt.okx | None = None
+    
+    def _init_exchange(self) -> None:
+        """Initialize OKX exchange connection."""
+        if self.exchange is None:
+            self.exchange = ccxt.okx({
+                'enableRateLimit': True,
+                'options': {'defaultType': 'swap'}
+            })
+            self.exchange.load_markets()
+    
+    def fetch_funding_history(
+        self,
+        symbol: str,
+        start_date: str | None = None,
+        end_date: str | None = None,
+        limit: int = 100
+    ) -> pd.DataFrame:
+        """
+        Fetch historical funding rates for a symbol.
+        
+        Args:
+            symbol: Asset symbol (e.g., 'BTC-USDT')
+            start_date: Start date (YYYY-MM-DD)
+            end_date: End date (YYYY-MM-DD)
+            limit: Max records per request
+            
+        Returns:
+            DataFrame with funding rate history
+        """
+        self._init_exchange()
+        
+        # Convert symbol format
+        base = symbol.replace('-USDT', '')
+        okx_symbol = f"{base}/USDT:USDT"
+        
+        try:
+            # OKX funding rate history endpoint
+            # Uses fetch_funding_rate_history if available
+            all_funding = []
+            
+            # Parse dates
+            if start_date:
+                since = self.exchange.parse8601(f"{start_date}T00:00:00Z")
+            else:
+                # Default to 1 year ago
+                since = self.exchange.milliseconds() - 365 * 24 * 60 * 60 * 1000
+            
+            if end_date:
+                until = self.exchange.parse8601(f"{end_date}T23:59:59Z")
+            else:
+                until = self.exchange.milliseconds()
+            
+            # Fetch in batches
+            current_since = since
+            while current_since < until:
+                try:
+                    funding = self.exchange.fetch_funding_rate_history(
+                        okx_symbol,
+                        since=current_since,
+                        limit=limit
+                    )
+                    
+                    if not funding:
+                        break
+                    
+                    all_funding.extend(funding)
+                    
+                    # Move to next batch
+                    last_ts = funding[-1]['timestamp']
+                    if last_ts <= current_since:
+                        break
+                    current_since = last_ts + 1
+                    
+                    time.sleep(0.1)  # Rate limit
+                    
+                except Exception as e:
+                    logger.warning(
+                        "Error fetching funding batch for %s: %s", 
+                        symbol, str(e)[:50]
+                    )
+                    break
+            
+            if not all_funding:
+                return pd.DataFrame()
+            
+            # Convert to DataFrame
+            df = pd.DataFrame(all_funding)
+            df['timestamp'] = pd.to_datetime(df['timestamp'], unit='ms', utc=True)
+            df.set_index('timestamp', inplace=True)
+            df = df[['fundingRate']].rename(columns={'fundingRate': 'funding_rate'})
+            df.sort_index(inplace=True)
+            
+            # Remove duplicates
+            df = df[~df.index.duplicated(keep='first')]
+            
+            logger.info("Fetched %d funding records for %s", len(df), symbol)
+            return df
+            
+        except Exception as e:
+            logger.error("Failed to fetch funding for %s: %s", symbol, e)
+            return pd.DataFrame()
+    
+    def fetch_all_assets(
+        self,
+        assets: list[str],
+        start_date: str | None = None,
+        end_date: str | None = None
+    ) -> pd.DataFrame:
+        """
+        Fetch funding rates for all assets and combine.
+        
+        Args:
+            assets: List of asset symbols (e.g., ['BTC-USDT', 'ETH-USDT'])
+            start_date: Start date
+            end_date: End date
+            
+        Returns:
+            Combined DataFrame with columns like 'btc_funding', 'eth_funding', etc.
+        """
+        combined = pd.DataFrame()
+        
+        for symbol in assets:
+            df = self.fetch_funding_history(symbol, start_date, end_date)
+            
+            if df.empty:
+                continue
+            
+            # Rename column
+            asset_name = symbol.replace('-USDT', '').lower()
+            col_name = f"{asset_name}_funding"
+            df = df.rename(columns={'funding_rate': col_name})
+            
+            if combined.empty:
+                combined = df
+            else:
+                combined = combined.join(df, how='outer')
+            
+            time.sleep(0.2)  # Be nice to API
+        
+        # Forward fill to hourly (funding is every 8h)
+        if not combined.empty:
+            combined = combined.sort_index()
+            combined = combined.ffill()
+        
+        return combined
+    
+    def save_to_cache(self, df: pd.DataFrame, filename: str = "funding_rates.csv") -> None:
+        """Save funding data to cache file."""
+        path = self.cache_dir / filename
+        df.to_csv(path)
+        logger.info("Saved funding rates to %s", path)
+    
+    def load_from_cache(self, filename: str = "funding_rates.csv") -> pd.DataFrame | None:
+        """Load funding data from cache if available."""
+        path = self.cache_dir / filename
+        if path.exists():
+            df = pd.read_csv(path, index_col='timestamp', parse_dates=True)
+            logger.info("Loaded funding rates from cache: %d rows", len(df))
+            return df
+        return None
+    
+    def get_funding_data(
+        self,
+        assets: list[str],
+        start_date: str | None = None,
+        end_date: str | None = None,
+        use_cache: bool = True,
+        force_refresh: bool = False
+    ) -> pd.DataFrame:
+        """
+        Get funding data, using cache if available.
+        
+        Args:
+            assets: List of asset symbols
+            start_date: Start date
+            end_date: End date
+            use_cache: Whether to use cached data
+            force_refresh: Force refresh even if cache exists
+            
+        Returns:
+            DataFrame with funding rates for all assets
+        """
+        cache_file = "funding_rates.csv"
+        
+        # Try cache first
+        if use_cache and not force_refresh:
+            cached = self.load_from_cache(cache_file)
+            if cached is not None:
+                # Check if cache covers requested range
+                if start_date and end_date:
+                    start_ts = pd.Timestamp(start_date, tz='UTC')
+                    end_ts = pd.Timestamp(end_date, tz='UTC')
+                    
+                    if cached.index.min() <= start_ts and cached.index.max() >= end_ts:
+                        # Filter to requested range
+                        return cached[(cached.index >= start_ts) & (cached.index <= end_ts)]
+        
+        # Fetch fresh data
+        logger.info("Fetching fresh funding rate data...")
+        df = self.fetch_all_assets(assets, start_date, end_date)
+        
+        if not df.empty and use_cache:
+            self.save_to_cache(df, cache_file)
+        
+        return df
+
+
+def download_funding_data():
+    """Download funding data for all multi-pair assets."""
+    from strategies.multi_pair.config import MultiPairConfig
+    
+    config = MultiPairConfig()
+    fetcher = FundingRateFetcher()
+    
+    # Fetch last year of data
+    end_date = datetime.now(timezone.utc).strftime("%Y-%m-%d")
+    start_date = (datetime.now(timezone.utc) - pd.Timedelta(days=365)).strftime("%Y-%m-%d")
+    
+    logger.info("Downloading funding rates for %d assets...", len(config.assets))
+    logger.info("Date range: %s to %s", start_date, end_date)
+    
+    df = fetcher.get_funding_data(
+        config.assets,
+        start_date=start_date,
+        end_date=end_date,
+        force_refresh=True
+    )
+    
+    if not df.empty:
+        logger.info("Downloaded %d funding rate records", len(df))
+        logger.info("Columns: %s", list(df.columns))
+    else:
+        logger.warning("No funding data downloaded")
+    
+    return df
+
+
+if __name__ == "__main__":
+    from engine.logging_config import setup_logging
+    setup_logging()
+    download_funding_data()

strategies/multi_pair/pair_scanner.py

@@ -0,0 +1,168 @@
+"""
+Pair Scanner for Multi-Pair Divergence Strategy.
+
+Generates all possible pairs from asset universe and checks tradeability.
+"""
+from dataclasses import dataclass
+from itertools import combinations
+from typing import Optional
+
+import ccxt
+
+from engine.logging_config import get_logger
+from .config import MultiPairConfig
+
+logger = get_logger(__name__)
+
+
+@dataclass
+class TradingPair:
+    """
+    Represents a tradeable pair for spread analysis.
+    
+    Attributes:
+        base_asset: First asset in the pair (numerator)
+        quote_asset: Second asset in the pair (denominator)
+        pair_id: Unique identifier for the pair
+        is_direct: Whether pair can be traded directly on exchange
+        exchange_symbol: Symbol for direct trading (if available)
+    """
+    base_asset: str
+    quote_asset: str
+    pair_id: str
+    is_direct: bool = False
+    exchange_symbol: Optional[str] = None
+    
+    @property
+    def name(self) -> str:
+        """Human-readable pair name."""
+        return f"{self.base_asset}/{self.quote_asset}"
+    
+    def __hash__(self):
+        return hash(self.pair_id)
+    
+    def __eq__(self, other):
+        if not isinstance(other, TradingPair):
+            return False
+        return self.pair_id == other.pair_id
+
+
+class PairScanner:
+    """
+    Scans and generates tradeable pairs from asset universe.
+    
+    Checks OKX for directly tradeable cross-pairs and generates
+    synthetic pairs via USDT for others.
+    """
+    
+    def __init__(self, config: MultiPairConfig):
+        self.config = config
+        self.exchange: Optional[ccxt.Exchange] = None
+        self._available_markets: set[str] = set()
+    
+    def _init_exchange(self) -> None:
+        """Initialize exchange connection for market lookup."""
+        if self.exchange is None:
+            exchange_class = getattr(ccxt, self.config.exchange_id)
+            self.exchange = exchange_class({'enableRateLimit': True})
+            self.exchange.load_markets()
+            self._available_markets = set(self.exchange.symbols)
+            logger.info(
+                "Loaded %d markets from %s",
+                len(self._available_markets), 
+                self.config.exchange_id
+            )
+    
+    def generate_pairs(self, check_exchange: bool = True) -> list[TradingPair]:
+        """
+        Generate all unique pairs from asset universe.
+        
+        Args:
+            check_exchange: Whether to check OKX for direct trading
+            
+        Returns:
+            List of TradingPair objects
+        """
+        if check_exchange:
+            self._init_exchange()
+        
+        pairs = []
+        assets = self.config.assets
+        
+        for base, quote in combinations(assets, 2):
+            pair_id = f"{base}__{quote}"
+            
+            # Check if directly tradeable as cross-pair on OKX
+            is_direct = False
+            exchange_symbol = None
+            
+            if check_exchange:
+                # Check perpetual cross-pair (e.g., ETH/BTC:BTC)
+                # OKX perpetuals are typically quoted in USDT
+                # Cross-pairs like ETH/BTC are less common
+                cross_symbol = f"{base.replace('-USDT', '')}/{quote.replace('-USDT', '')}:USDT"
+                if cross_symbol in self._available_markets:
+                    is_direct = True
+                    exchange_symbol = cross_symbol
+            
+            pair = TradingPair(
+                base_asset=base,
+                quote_asset=quote,
+                pair_id=pair_id,
+                is_direct=is_direct,
+                exchange_symbol=exchange_symbol
+            )
+            pairs.append(pair)
+        
+        # Log summary
+        direct_count = sum(1 for p in pairs if p.is_direct)
+        logger.info(
+            "Generated %d pairs: %d direct, %d synthetic",
+            len(pairs), direct_count, len(pairs) - direct_count
+        )
+        
+        return pairs
+    
+    def get_required_symbols(self, pairs: list[TradingPair]) -> list[str]:
+        """
+        Get list of symbols needed to calculate all pair spreads.
+        
+        For synthetic pairs, we need both USDT pairs.
+        For direct pairs, we still load USDT pairs for simplicity.
+        
+        Args:
+            pairs: List of trading pairs
+            
+        Returns:
+            List of unique symbols to load (e.g., ['BTC-USDT', 'ETH-USDT'])
+        """
+        symbols = set()
+        for pair in pairs:
+            symbols.add(pair.base_asset)
+            symbols.add(pair.quote_asset)
+        return list(symbols)
+    
+    def filter_by_assets(
+        self, 
+        pairs: list[TradingPair], 
+        exclude_assets: list[str]
+    ) -> list[TradingPair]:
+        """
+        Filter pairs that contain any of the excluded assets.
+        
+        Args:
+            pairs: List of trading pairs
+            exclude_assets: Assets to exclude
+            
+        Returns:
+            Filtered list of pairs
+        """
+        if not exclude_assets:
+            return pairs
+        
+        exclude_set = set(exclude_assets)
+        return [
+            p for p in pairs
+            if p.base_asset not in exclude_set 
+            and p.quote_asset not in exclude_set
+        ]

strategies/multi_pair/strategy.py

@@ -0,0 +1,525 @@
+"""
+Multi-Pair Divergence Selection Strategy.
+
+Main strategy class that orchestrates pair scanning, feature calculation,
+model training, and signal generation for backtesting.
+"""
+from dataclasses import dataclass
+from typing import Optional
+
+import pandas as pd
+import numpy as np
+
+from strategies.base import BaseStrategy
+from engine.market import MarketType
+from engine.logging_config import get_logger
+from .config import MultiPairConfig
+from .pair_scanner import PairScanner, TradingPair
+from .correlation import CorrelationFilter
+from .feature_engine import MultiPairFeatureEngine
+from .divergence_scorer import DivergenceScorer, DivergenceSignal
+
+logger = get_logger(__name__)
+
+
+@dataclass
+class PositionState:
+    """Tracks current position state."""
+    pair: TradingPair | None = None
+    direction: str | None = None  # 'long' or 'short'
+    entry_price: float = 0.0
+    entry_idx: int = -1
+    stop_loss: float = 0.0
+    take_profit: float = 0.0
+    atr: float = 0.0  # ATR at entry for reference
+    last_exit_idx: int = -100  # For cooldown tracking
+
+
+class MultiPairDivergenceStrategy(BaseStrategy):
+    """
+    Multi-Pair Divergence Selection Strategy.
+    
+    Scans multiple cryptocurrency pairs for spread divergence,
+    selects the most divergent pair using ML-enhanced scoring,
+    and trades mean-reversion opportunities.
+    
+    Key Features:
+    - Universal ML model across all pairs
+    - Correlation-based pair filtering
+    - Dynamic SL/TP based on volatility
+    - Walk-forward training
+    """
+    
+    def __init__(
+        self,
+        config: MultiPairConfig | None = None,
+        model_path: str = "data/multi_pair_model.pkl"
+    ):
+        super().__init__()
+        self.config = config or MultiPairConfig()
+        
+        # Initialize components
+        self.pair_scanner = PairScanner(self.config)
+        self.correlation_filter = CorrelationFilter(self.config)
+        self.feature_engine = MultiPairFeatureEngine(self.config)
+        self.divergence_scorer = DivergenceScorer(self.config, model_path)
+        
+        # Strategy configuration
+        self.default_market_type = MarketType.PERPETUAL
+        self.default_leverage = 1
+        
+        # Runtime state
+        self.pairs: list[TradingPair] = []
+        self.asset_data: dict[str, pd.DataFrame] = {}
+        self.pair_features: dict[str, pd.DataFrame] = {}
+        self.position = PositionState()
+        self.train_end_idx: int = 0
+    
+    def run(self, close: pd.Series, **kwargs) -> tuple:
+        """
+        Execute the multi-pair divergence strategy.
+        
+        This method is called by the backtester with the primary asset's
+        close prices. For multi-pair, we load all assets internally.
+        
+        Args:
+            close: Primary close prices (used for index alignment)
+            **kwargs: Additional data (high, low, volume)
+            
+        Returns:
+            Tuple of (long_entries, long_exits, short_entries, short_exits, size)
+        """
+        logger.info("Starting Multi-Pair Divergence Strategy")
+        
+        # 1. Load all asset data
+        start_date = close.index.min().strftime("%Y-%m-%d")
+        end_date = close.index.max().strftime("%Y-%m-%d")
+        
+        self.asset_data = self.feature_engine.load_all_assets(
+            start_date=start_date,
+            end_date=end_date
+        )
+        
+        # 1b. Load funding rate data for all assets
+        self.feature_engine.load_funding_data(
+            start_date=start_date,
+            end_date=end_date,
+            use_cache=True
+        )
+        
+        if len(self.asset_data) < 2:
+            logger.error("Insufficient assets loaded, need at least 2")
+            return self._empty_signals(close)
+        
+        # 2. Generate pairs
+        self.pairs = self.pair_scanner.generate_pairs(check_exchange=False)
+        
+        # Filter to pairs with available data
+        available_assets = set(self.asset_data.keys())
+        self.pairs = [
+            p for p in self.pairs
+            if p.base_asset in available_assets 
+            and p.quote_asset in available_assets
+        ]
+        
+        logger.info("Trading %d pairs from %d assets", len(self.pairs), len(self.asset_data))
+        
+        # 3. Calculate features for all pairs
+        self.pair_features = self.feature_engine.calculate_all_pair_features(
+            self.pairs, self.asset_data
+        )
+        
+        if not self.pair_features:
+            logger.error("No pair features calculated")
+            return self._empty_signals(close)
+        
+        # 4. Align to common index
+        common_index = self._get_common_index()
+        if len(common_index) < 200:
+            logger.error("Insufficient common data across pairs")
+            return self._empty_signals(close)
+        
+        # 5. Walk-forward split
+        n_samples = len(common_index)
+        train_size = int(n_samples * self.config.train_ratio)
+        self.train_end_idx = train_size
+        
+        train_end_date = common_index[train_size - 1]
+        test_start_date = common_index[train_size]
+        
+        logger.info(
+            "Walk-Forward Split: Train=%d bars (until %s), Test=%d bars (from %s)",
+            train_size, train_end_date.strftime('%Y-%m-%d'),
+            n_samples - train_size, test_start_date.strftime('%Y-%m-%d')
+        )
+        
+        # 6. Train model on training period
+        if self.divergence_scorer.model is None:
+            train_features = {
+                pid: feat[feat.index <= train_end_date]
+                for pid, feat in self.pair_features.items()
+            }
+            combined = self.feature_engine.get_combined_features(train_features)
+            self.divergence_scorer.train_model(combined, train_features)
+        
+        # 7. Generate signals for test period
+        return self._generate_signals(common_index, train_size, close)
+    
+    def _generate_signals(
+        self,
+        index: pd.DatetimeIndex,
+        train_size: int,
+        reference_close: pd.Series
+    ) -> tuple:
+        """
+        Generate entry/exit signals for the test period.
+        
+        Iterates through each bar in the test period, scoring pairs
+        and generating signals based on divergence scores.
+        """
+        # Initialize signal arrays aligned to reference close
+        long_entries = pd.Series(False, index=reference_close.index)
+        long_exits = pd.Series(False, index=reference_close.index)
+        short_entries = pd.Series(False, index=reference_close.index)
+        short_exits = pd.Series(False, index=reference_close.index)
+        size = pd.Series(1.0, index=reference_close.index)
+        
+        # Track position state
+        self.position = PositionState()
+        
+        # Price data for correlation calculation
+        price_data = {
+            symbol: df['close'] for symbol, df in self.asset_data.items()
+        }
+        
+        # Iterate through test period
+        test_indices = index[train_size:]
+        
+        trade_count = 0
+        
+        for i, timestamp in enumerate(test_indices):
+            current_idx = train_size + i
+            
+            # Check exit conditions first
+            if self.position.pair is not None:
+                # Enforce minimum hold period
+                bars_held = current_idx - self.position.entry_idx
+                if bars_held < self.config.min_hold_bars:
+                    # Only allow SL/TP exits during min hold period
+                    should_exit, exit_reason = self._check_sl_tp_only(timestamp)
+                else:
+                    should_exit, exit_reason = self._check_exit(timestamp)
+                
+                if should_exit:
+                    # Map exit signal to reference index
+                    if timestamp in reference_close.index:
+                        if self.position.direction == 'long':
+                            long_exits.loc[timestamp] = True
+                        else:
+                            short_exits.loc[timestamp] = True
+                    
+                    logger.debug(
+                        "Exit %s %s at %s: %s (held %d bars)",
+                        self.position.direction,
+                        self.position.pair.name,
+                        timestamp.strftime('%Y-%m-%d %H:%M'),
+                        exit_reason,
+                        bars_held
+                    )
+                    self.position = PositionState(last_exit_idx=current_idx)
+            
+            # Score pairs (with correlation filter if position exists)
+            held_asset = None
+            if self.position.pair is not None:
+                held_asset = self.position.pair.base_asset
+            
+            # Filter pairs by correlation
+            candidate_pairs = self.correlation_filter.filter_pairs(
+                self.pairs,
+                held_asset,
+                price_data,
+                current_idx
+            )
+            
+            # Get candidate features
+            candidate_features = {
+                pid: feat for pid, feat in self.pair_features.items()
+                if any(p.pair_id == pid for p in candidate_pairs)
+            }
+            
+            # Score pairs
+            signals = self.divergence_scorer.score_pairs(
+                candidate_features,
+                candidate_pairs,
+                timestamp
+            )
+            
+            # Get best signal
+            best = self.divergence_scorer.select_best_pair(signals)
+            
+            if best is None:
+                continue
+            
+            # Check if we should switch positions or enter new
+            should_enter = False
+            
+            # Check cooldown
+            bars_since_exit = current_idx - self.position.last_exit_idx
+            in_cooldown = bars_since_exit < self.config.cooldown_bars
+            
+            if self.position.pair is None and not in_cooldown:
+                # No position and not in cooldown, can enter
+                should_enter = True
+            elif self.position.pair is not None:
+                # Check if we should switch (requires min hold + significant improvement)
+                bars_held = current_idx - self.position.entry_idx
+                current_score = self._get_current_score(timestamp)
+                
+                if (bars_held >= self.config.min_hold_bars and 
+                    best.divergence_score > current_score * self.config.switch_threshold):
+                    # New opportunity is significantly better
+                    if timestamp in reference_close.index:
+                        if self.position.direction == 'long':
+                            long_exits.loc[timestamp] = True
+                        else:
+                            short_exits.loc[timestamp] = True
+                    self.position = PositionState(last_exit_idx=current_idx)
+                    should_enter = True
+            
+            if should_enter:
+                # Calculate ATR-based dynamic SL/TP
+                sl_price, tp_price = self._calculate_sl_tp(
+                    best.base_price,
+                    best.direction,
+                    best.atr,
+                    best.atr_pct
+                )
+                
+                # Set position
+                self.position = PositionState(
+                    pair=best.pair,
+                    direction=best.direction,
+                    entry_price=best.base_price,
+                    entry_idx=current_idx,
+                    stop_loss=sl_price,
+                    take_profit=tp_price,
+                    atr=best.atr
+                )
+                
+                # Calculate position size based on divergence
+                pos_size = self._calculate_size(best.divergence_score)
+                
+                # Generate entry signal
+                if timestamp in reference_close.index:
+                    if best.direction == 'long':
+                        long_entries.loc[timestamp] = True
+                    else:
+                        short_entries.loc[timestamp] = True
+                    size.loc[timestamp] = pos_size
+                
+                trade_count += 1
+                logger.debug(
+                    "Entry %s %s at %s: z=%.2f, prob=%.2f, score=%.3f",
+                    best.direction,
+                    best.pair.name,
+                    timestamp.strftime('%Y-%m-%d %H:%M'),
+                    best.z_score,
+                    best.probability,
+                    best.divergence_score
+                )
+        
+        logger.info("Generated %d trades in test period", trade_count)
+        
+        return long_entries, long_exits, short_entries, short_exits, size
+    
+    def _check_exit(self, timestamp: pd.Timestamp) -> tuple[bool, str]:
+        """
+        Check if current position should be exited.
+        
+        Exit conditions:
+        1. Z-Score reverted to mean (|Z| < threshold)
+        2. Stop-loss hit
+        3. Take-profit hit
+        
+        Returns:
+            Tuple of (should_exit, reason)
+        """
+        if self.position.pair is None:
+            return False, ""
+        
+        pair_id = self.position.pair.pair_id
+        if pair_id not in self.pair_features:
+            return True, "pair_data_missing"
+        
+        features = self.pair_features[pair_id]
+        valid = features[features.index <= timestamp]
+        
+        if len(valid) == 0:
+            return True, "no_data"
+        
+        latest = valid.iloc[-1]
+        z_score = latest['z_score']
+        current_price = latest['base_close']
+        
+        # Check mean reversion (primary exit)
+        if abs(z_score) < self.config.z_exit_threshold:
+            return True, f"mean_reversion (z={z_score:.2f})"
+        
+        # Check SL/TP
+        return self._check_sl_tp(current_price)
+    
+    def _check_sl_tp_only(self, timestamp: pd.Timestamp) -> tuple[bool, str]:
+        """
+        Check only stop-loss and take-profit conditions.
+        Used during minimum hold period.
+        """
+        if self.position.pair is None:
+            return False, ""
+        
+        pair_id = self.position.pair.pair_id
+        if pair_id not in self.pair_features:
+            return True, "pair_data_missing"
+        
+        features = self.pair_features[pair_id]
+        valid = features[features.index <= timestamp]
+        
+        if len(valid) == 0:
+            return True, "no_data"
+        
+        latest = valid.iloc[-1]
+        current_price = latest['base_close']
+        
+        return self._check_sl_tp(current_price)
+    
+    def _check_sl_tp(self, current_price: float) -> tuple[bool, str]:
+        """Check stop-loss and take-profit levels."""
+        if self.position.direction == 'long':
+            if current_price <= self.position.stop_loss:
+                return True, f"stop_loss ({current_price:.2f} <= {self.position.stop_loss:.2f})"
+            if current_price >= self.position.take_profit:
+                return True, f"take_profit ({current_price:.2f} >= {self.position.take_profit:.2f})"
+        else:  # short
+            if current_price >= self.position.stop_loss:
+                return True, f"stop_loss ({current_price:.2f} >= {self.position.stop_loss:.2f})"
+            if current_price <= self.position.take_profit:
+                return True, f"take_profit ({current_price:.2f} <= {self.position.take_profit:.2f})"
+        
+        return False, ""
+    
+    def _get_current_score(self, timestamp: pd.Timestamp) -> float:
+        """Get current position's divergence score for comparison."""
+        if self.position.pair is None:
+            return 0.0
+        
+        pair_id = self.position.pair.pair_id
+        if pair_id not in self.pair_features:
+            return 0.0
+        
+        features = self.pair_features[pair_id]
+        valid = features[features.index <= timestamp]
+        
+        if len(valid) == 0:
+            return 0.0
+        
+        latest = valid.iloc[-1]
+        z_score = abs(latest['z_score'])
+        
+        # Re-score with model
+        if self.divergence_scorer.model is not None:
+            feature_row = latest[self.divergence_scorer.feature_cols].fillna(0)
+            feature_row = feature_row.replace([np.inf, -np.inf], 0)
+            X = pd.DataFrame(
+                [feature_row.values], 
+                columns=self.divergence_scorer.feature_cols
+            )
+            prob = self.divergence_scorer.model.predict_proba(X)[0, 1]
+            return z_score * prob
+        
+        return z_score * 0.5
+    
+    def _calculate_sl_tp(
+        self,
+        entry_price: float,
+        direction: str,
+        atr: float,
+        atr_pct: float
+    ) -> tuple[float, float]:
+        """
+        Calculate ATR-based dynamic stop-loss and take-profit prices.
+        
+        Uses ATR (Average True Range) to set stops that adapt to
+        each asset's volatility. More volatile assets get wider stops.
+        
+        Args:
+            entry_price: Entry price
+            direction: 'long' or 'short'
+            atr: ATR in price units
+            atr_pct: ATR as percentage of price
+            
+        Returns:
+            Tuple of (stop_loss_price, take_profit_price)
+        """
+        # Calculate SL/TP as ATR multiples
+        if atr > 0 and atr_pct > 0:
+            # ATR-based calculation
+            sl_distance = atr * self.config.sl_atr_multiplier
+            tp_distance = atr * self.config.tp_atr_multiplier
+            
+            # Convert to percentage for bounds checking
+            sl_pct = sl_distance / entry_price
+            tp_pct = tp_distance / entry_price
+        else:
+            # Fallback to fixed percentages if ATR unavailable
+            sl_pct = self.config.base_sl_pct
+            tp_pct = self.config.base_tp_pct
+        
+        # Apply bounds to prevent extreme stops
+        sl_pct = max(self.config.min_sl_pct, min(sl_pct, self.config.max_sl_pct))
+        tp_pct = max(self.config.min_tp_pct, min(tp_pct, self.config.max_tp_pct))
+        
+        # Calculate actual prices
+        if direction == 'long':
+            stop_loss = entry_price * (1 - sl_pct)
+            take_profit = entry_price * (1 + tp_pct)
+        else:  # short
+            stop_loss = entry_price * (1 + sl_pct)
+            take_profit = entry_price * (1 - tp_pct)
+        
+        return stop_loss, take_profit
+    
+    def _calculate_size(self, divergence_score: float) -> float:
+        """
+        Calculate position size based on divergence score.
+        
+        Higher divergence = larger position (up to 2x).
+        """
+        # Base score threshold (Z=1.0, prob=0.5 -> score=0.5)
+        base_threshold = 0.5
+        
+        # Scale factor
+        if divergence_score <= base_threshold:
+            return 1.0
+        
+        # Linear scaling: 1.0 at threshold, up to 2.0 at 2x threshold
+        scale = 1.0 + (divergence_score - base_threshold) / base_threshold
+        return min(scale, 2.0)
+    
+    def _get_common_index(self) -> pd.DatetimeIndex:
+        """Get the intersection of all pair feature indices."""
+        if not self.pair_features:
+            return pd.DatetimeIndex([])
+        
+        common = None
+        for features in self.pair_features.values():
+            if common is None:
+                common = features.index
+            else:
+                common = common.intersection(features.index)
+        
+        return common.sort_values()
+    
+    def _empty_signals(self, close: pd.Series) -> tuple:
+        """Return empty signal arrays."""
+        empty = self.create_empty_signals(close)
+        size = pd.Series(1.0, index=close.index)
+        return empty, empty, empty, empty, size

strategies/regime_strategy.py

@@ -0,0 +1,365 @@
+import pandas as pd
+import numpy as np
+import ta
+import vectorbt as vbt
+from sklearn.ensemble import RandomForestClassifier
+
+from strategies.base import BaseStrategy
+from engine.market import MarketType
+from engine.data_manager import DataManager
+from engine.logging_config import get_logger
+
+logger = get_logger(__name__)
+
+class RegimeReversionStrategy(BaseStrategy):
+    """
+    ML-Based Regime Detection & Mean Reversion Strategy.
+    
+    Logic:
+    1. Tracks the BTC/ETH Spread and its Z-Score (24h window).
+    2. Uses a Random Forest model to predict if an extreme Z-Score will revert profitably.
+    3. Features: Spread Technicals (RSI, ROC) + On-Chain Flows (Inflow, Funding).
+    4. Entry: When Model Probability > 0.5.
+    5. Exit: Z-Score reversion to 0 or SL/TP.
+    
+    Walk-Forward Training:
+    - Trains on first `train_ratio` of data (default 70%)
+    - Generates signals only for remaining test period (30%)
+    - Eliminates look-ahead bias for realistic backtest results
+    """
+    
+    # Optimal parameters from walk-forward research (2025-10 to 2025-12)
+    # Research: research/horizon_optimization_results.csv
+    OPTIMAL_HORIZON = 102        # 4.25 days - best Net PnL (+232%)
+    OPTIMAL_Z_WINDOW = 24        # 24h rolling window for spread Z-score
+    OPTIMAL_TRAIN_RATIO = 0.7    # 70% train / 30% test split
+    OPTIMAL_PROFIT_TARGET = 0.005  # 0.5% profit threshold for target definition
+    OPTIMAL_Z_ENTRY = 1.0        # Enter when |Z| > 1.0
+    
+    def __init__(self, 
+                 model_path: str = "data/regime_model.pkl",
+                 horizon: int = OPTIMAL_HORIZON,
+                 z_window: int = OPTIMAL_Z_WINDOW,
+                 z_entry_threshold: float = OPTIMAL_Z_ENTRY,
+                 profit_target: float = OPTIMAL_PROFIT_TARGET,
+                 stop_loss: float = 0.06,   # 6% - accommodates 1.95% avg MAE
+                 take_profit: float = 0.05,  # 5% swing target
+                 train_ratio: float = OPTIMAL_TRAIN_RATIO,
+                 trend_window: int = 0,      # Disable SMA filter
+                 use_funding_filter: bool = True, # Enable Funding Rate filter
+                 funding_threshold: float = 0.005 # Tightened to 0.005%
+                 ):
+        super().__init__()
+        self.model_path = model_path
+        self.horizon = horizon
+        self.z_window = z_window
+        self.z_entry_threshold = z_entry_threshold
+        self.profit_target = profit_target
+        self.stop_loss = stop_loss
+        self.take_profit = take_profit
+        self.train_ratio = train_ratio
+        self.trend_window = trend_window
+        self.use_funding_filter = use_funding_filter
+        self.funding_threshold = funding_threshold
+        
+        # Default Strategy Config
+        self.default_market_type = MarketType.PERPETUAL
+        self.default_leverage = 1
+        
+        self.dm = DataManager()
+        self.model = None
+        self.feature_cols = None
+        self.train_end_idx = None  # Will store the training cutoff point
+
+    def run(self, close, **kwargs):
+        """
+        Execute the strategy logic.
+        We assume this strategy is run on ETH-USDT (the active asset).
+        We will fetch BTC-USDT internally to calculate the spread.
+        """
+        # 1. Identify Context
+        # We need BTC data aligned with the incoming ETH 'close' series
+        start_date = close.index.min()
+        end_date = close.index.max()
+        
+        logger.info("Fetching BTC context data...")
+        try:
+            # Load BTC data (Context) - Must match the timeframe of the backtest
+            # Research was done on 1h candles, so strategy should be run on 1h
+            # Use PERPETUAL data to match the trading instrument (ETH Perp)
+            df_btc = self.dm.load_data("okx", "BTC-USDT", "1h", MarketType.PERPETUAL)
+            
+            # Align BTC to ETH (close)
+            df_btc = df_btc.reindex(close.index, method='ffill')
+            btc_close = df_btc['close']
+            
+        except Exception as e:
+            logger.error(f"Failed to load BTC context: {e}")
+            empty = self.create_empty_signals(close)
+            return empty, empty, empty, empty
+
+        # 2. Construct DataFrames for Feature Engineering
+        # We need volume/high/low for features, but 'run' signature primarily gives 'close'.
+        # kwargs might have high/low/volume if passed by Backtester.run_strategy
+        eth_vol = kwargs.get('volume')
+        
+        if eth_vol is None:
+            logger.warning("Volume data missing. Feature calculation might fail.")
+            # Fallback or error handling
+            eth_vol = pd.Series(0, index=close.index)
+
+        # Construct dummy dfs for prepare_features
+        # We only really need Close and Volume for the current feature set
+        df_a = pd.DataFrame({'close': btc_close, 'volume': df_btc['volume']})
+        df_b = pd.DataFrame({'close': close, 'volume': eth_vol})
+        
+        # 3. Load On-Chain Data (CryptoQuant)
+        # We use the saved CSV for training/inference
+        # In a live setting, this would query the API for recent data
+        cq_df = None
+        try:
+            cq_path = "data/cq_training_data.csv"
+            cq_df = pd.read_csv(cq_path, index_col='timestamp', parse_dates=True)
+            if cq_df.index.tz is None:
+                cq_df.index = cq_df.index.tz_localize('UTC')
+        except Exception:
+            logger.warning("CryptoQuant data not found. Running without on-chain features.")
+
+        # 4. Calculate Features
+        features = self.prepare_features(df_a, df_b, cq_df)
+        
+        # 5. Walk-Forward Split
+        # Train on first `train_ratio` of data, test on remainder
+        n_samples = len(features)
+        train_size = int(n_samples * self.train_ratio)
+        
+        train_features = features.iloc[:train_size]
+        test_features = features.iloc[train_size:]
+        
+        train_end_date = train_features.index[-1]
+        test_start_date = test_features.index[0]
+        
+        logger.info(
+            f"Walk-Forward Split: Train={len(train_features)} bars "
+            f"(until {train_end_date.strftime('%Y-%m-%d')}), "
+            f"Test={len(test_features)} bars "
+            f"(from {test_start_date.strftime('%Y-%m-%d')})"
+        )
+        
+        # 6. Train Model on Training Period ONLY
+        if self.model is None:
+            logger.info("Training Regime Model on training period only...")
+            self.model, self.feature_cols = self.train_model(train_features)
+            
+        # 7. Predict on TEST Period ONLY
+        # Use valid columns only
+        X_test = test_features[self.feature_cols].fillna(0)
+        X_test = X_test.replace([np.inf, -np.inf], 0)
+        
+        # Predict Probabilities for test period
+        probs = self.model.predict_proba(X_test)[:, 1]
+        
+        # 8. Generate Entry Signals (TEST period only)
+        # If Z > threshold (Spread High, ETH Expensive) -> Short ETH
+        # If Z < -threshold (Spread Low, ETH Cheap) -> Long ETH
+        z_thresh = self.z_entry_threshold
+        
+        short_signal_test = (probs > 0.5) & (test_features['z_score'].values > z_thresh)
+        long_signal_test = (probs > 0.5) & (test_features['z_score'].values < -z_thresh)
+        
+        # 8b. Apply Trend Filter (Macro Regime)
+        # Rule: Long only if BTC > SMA (Bull), Short only if BTC < SMA (Bear)
+        if self.trend_window > 0:
+            # Calculate SMA on full BTC history first
+            btc_sma = btc_close.rolling(window=self.trend_window).mean()
+            
+            # Align with test period
+            test_btc_close = btc_close.reindex(test_features.index)
+            test_btc_sma = btc_sma.reindex(test_features.index)
+            
+            # Define Regimes
+            is_bull = (test_btc_close > test_btc_sma).values
+            is_bear = (test_btc_close < test_btc_sma).values
+            
+            # Apply Filter
+            long_signal_test = long_signal_test & is_bull
+            short_signal_test = short_signal_test & is_bear
+            
+        # 8c. Apply Funding Rate Filter
+        # Rule: If Funding > Threshold (Greedy) -> No Longs.
+        #       If Funding < -Threshold (Fearful) -> No Shorts.
+        if self.use_funding_filter and 'btc_funding' in test_features.columns:
+            funding = test_features['btc_funding'].values
+            thresh = self.funding_threshold
+            
+            # Greedy Market (High Positive Funding) -> Risk of Long Squeeze -> Block Longs
+            # (Or implies trend is up? Actually for Mean Reversion, high funding often marks tops)
+            # We block Longs because we don't want to buy into an overheated market?
+            # Actually, "Greedy" means Longs are paying Shorts.
+            # If we Long, we pay funding.
+            # If we Short, we receive funding.
+            # So High Funding = Good for Shorts (receive yield + reversion).
+            # Bad for Longs (pay yield + likely top).
+            
+            is_overheated = funding > thresh
+            is_oversold = funding < -thresh
+            
+            # Block Longs if Overheated
+            long_signal_test = long_signal_test & (~is_overheated)
+            
+            # Block Shorts if Oversold (Negative Funding) -> Risk of Short Squeeze
+            short_signal_test = short_signal_test & (~is_oversold)
+            
+            n_blocked_long = (is_overheated & (probs > 0.5) & (test_features['z_score'].values < -z_thresh)).sum()
+            n_blocked_short = (is_oversold & (probs > 0.5) & (test_features['z_score'].values > z_thresh)).sum()
+            
+            if n_blocked_long > 0 or n_blocked_short > 0:
+                logger.info(f"Funding Filter: Blocked {n_blocked_long} Longs, {n_blocked_short} Shorts")
+        
+        # 9. Calculate Position Sizing (Probability-Based)
+        # Base size = 1.0 (100% of equity)
+        # Scale: 1.0 + (Prob - 0.5) * 2
+        # Example: Prob=0.6 -> Size=1.2, Prob=0.8 -> Size=1.6
+        
+        # Align probabilities to close index
+        probs_series = pd.Series(0.0, index=test_features.index)
+        probs_series[:] = probs
+        probs_aligned = probs_series.reindex(close.index, fill_value=0.0)
+        
+        # Calculate dynamic size
+        dynamic_size = 1.0 + (probs_aligned - 0.5) * 2.0
+        # Cap leverage between 1x and 2x
+        size = dynamic_size.clip(lower=1.0, upper=2.0)
+        
+        # Create full-length signal series (False for training period)
+        long_entries = pd.Series(False, index=close.index)
+        short_entries = pd.Series(False, index=close.index)
+        
+        # Map test signals to their correct indices
+        test_idx = test_features.index
+        for i, idx in enumerate(test_idx):
+            if idx in close.index:
+                long_entries.loc[idx] = bool(long_signal_test[i])
+                short_entries.loc[idx] = bool(short_signal_test[i])
+        
+        # 9. Generate Exits
+        # Exit when Z-Score crosses back through 0 (mean reversion complete)
+        z_reindexed = features['z_score'].reindex(close.index, fill_value=0)
+        
+        # Exit Long when Z > 0, Exit Short when Z < 0
+        long_exits = z_reindexed > 0
+        short_exits = z_reindexed < 0
+        
+        # Log signal counts for verification
+        n_long = long_entries.sum()
+        n_short = short_entries.sum()
+        logger.info(f"Generated {n_long} long signals, {n_short} short signals (test period only)")
+        
+        return long_entries, long_exits, short_entries, short_exits, size
+
+    def prepare_features(self, df_btc, df_eth, cq_df=None):
+        """Replicate research feature engineering"""
+        # Align
+        common = df_btc.index.intersection(df_eth.index)
+        df_a = df_btc.loc[common].copy()
+        df_b = df_eth.loc[common].copy()
+        
+        # Spread
+        spread = df_b['close'] / df_a['close']
+        
+        # Z-Score
+        rolling_mean = spread.rolling(window=self.z_window).mean()
+        rolling_std = spread.rolling(window=self.z_window).std()
+        z_score = (spread - rolling_mean) / rolling_std
+        
+        # Technicals
+        spread_rsi = ta.momentum.RSIIndicator(spread, window=14).rsi()
+        spread_roc = spread.pct_change(periods=5) * 100
+        spread_change_1h = spread.pct_change(periods=1)
+        
+        # Volume
+        vol_ratio = df_b['volume'] / df_a['volume']
+        vol_ratio_ma = vol_ratio.rolling(window=12).mean()
+        
+        # Volatility
+        ret_a = df_a['close'].pct_change()
+        ret_b = df_b['close'].pct_change()
+        vol_a = ret_a.rolling(window=self.z_window).std()
+        vol_b = ret_b.rolling(window=self.z_window).std()
+        vol_spread_ratio = vol_b / vol_a
+        
+        features = pd.DataFrame(index=spread.index)
+        features['spread'] = spread
+        features['z_score'] = z_score
+        features['spread_rsi'] = spread_rsi
+        features['spread_roc'] = spread_roc
+        features['spread_change_1h'] = spread_change_1h
+        features['vol_ratio'] = vol_ratio
+        features['vol_ratio_rel'] = vol_ratio / vol_ratio_ma
+        features['vol_diff_ratio'] = vol_spread_ratio
+        
+        # CQ Merge
+        if cq_df is not None:
+            cq_aligned = cq_df.reindex(features.index, method='ffill')
+            if 'btc_funding' in cq_aligned.columns and 'eth_funding' in cq_aligned.columns:
+                cq_aligned['funding_diff'] = cq_aligned['eth_funding'] - cq_aligned['btc_funding']
+            if 'btc_inflow' in cq_aligned.columns and 'eth_inflow' in cq_aligned.columns:
+                cq_aligned['inflow_ratio'] = cq_aligned['eth_inflow'] / (cq_aligned['btc_inflow'] + 1)
+            features = features.join(cq_aligned)
+            
+        return features.dropna()
+
+    def train_model(self, train_features):
+        """
+        Train Random Forest on training data only.
+        
+        This method receives ONLY the training subset of features,
+        ensuring no look-ahead bias. The model learns from historical
+        patterns and is then applied to unseen test data.
+        
+        Args:
+            train_features: DataFrame containing features for training period only
+        """
+        threshold = self.profit_target
+        horizon = self.horizon
+        z_thresh = self.z_entry_threshold
+        
+        # Define targets using ONLY training data
+        # For Short Spread (Z > threshold): Did spread drop below target within horizon?
+        future_min = train_features['spread'].rolling(window=horizon).min().shift(-horizon)
+        target_short = train_features['spread'] * (1 - threshold)
+        success_short = (train_features['z_score'] > z_thresh) & (future_min < target_short)
+
+        # For Long Spread (Z < -threshold): Did spread rise above target within horizon?
+        future_max = train_features['spread'].rolling(window=horizon).max().shift(-horizon)
+        target_long = train_features['spread'] * (1 + threshold)
+        success_long = (train_features['z_score'] < -z_thresh) & (future_max > target_long)
+        
+        targets = np.select([success_short, success_long], [1, 1], default=0)
+        
+        # Build model
+        model = RandomForestClassifier(
+            n_estimators=300, max_depth=5, min_samples_leaf=30, 
+            class_weight={0: 1, 1: 3}, random_state=42
+        )
+        
+        # Exclude non-feature columns
+        exclude = ['spread']
+        cols = [c for c in train_features.columns if c not in exclude]
+        
+        # Clean features
+        X_train = train_features[cols].fillna(0)
+        X_train = X_train.replace([np.inf, -np.inf], 0)
+        
+        # Remove rows with NaN targets (from rolling window at end of training period)
+        valid_mask = ~np.isnan(targets) & ~np.isinf(targets)
+        # Also check for rows where future data doesn't exist (shift created NaNs)
+        valid_mask = valid_mask & (future_min.notna().values) & (future_max.notna().values)
+        
+        X_train_clean = X_train[valid_mask]
+        targets_clean = targets[valid_mask]
+        
+        logger.info(f"Training on {len(X_train_clean)} valid samples (removed {len(X_train) - len(X_train_clean)} with incomplete future data)")
+        
+        model.fit(X_train_clean, targets_clean)
+        return model, cols

tasks/prd-market-type-selection.md

@@ -1,295 +0,0 @@
-# PRD: Market Type Selection for Backtesting
-
-## Introduction/Overview
-
-Currently, the backtesting system operates with a single, implicit market type assumption. This PRD defines the implementation of **market type selection** (Spot vs. USDT-M Perpetual Futures) to enable realistic simulation of different trading conditions.
-
-**Problem Statement:**
-- Strategies cannot be backtested against different market mechanics (leverage, funding, short-selling)
-- Fee structures are uniform regardless of market type
-- No support for short-selling strategies
-- Data fetching doesn't distinguish between spot and futures markets
-
-**Goal:**
-Enable users to backtest strategies against specific market types (Spot or USDT-M Perpetual) with realistic trading conditions matching OKX's live environment.
-
----
-
-## Goals
-
-1. **Support two market types:** Spot and USDT-M Perpetual Futures
-2. **Realistic fee simulation:** Match OKX's fee structure per market type
-3. **Leverage support:** Per-strategy configurable leverage (perpetuals only)
-4. **Funding rate simulation:** Simplified funding rate model for perpetuals
-5. **Short-selling support:** Enable strategies to generate short signals
-6. **Liquidation awareness:** Warn when positions would be liquidated (no full simulation)
-7. **Separate data storage:** Download and store data per market type
-8. **Grid search integration:** Allow leverage optimization in parameter grids
-
----
-
-## User Stories
-
-1. **As a trader**, I want to backtest my strategy on perpetual futures so that I can simulate leveraged trading with funding costs.
-
-2. **As a trader**, I want to backtest on spot markets so that I can compare performance without leverage or funding overhead.
-
-3. **As a strategy developer**, I want to define a default market type for my strategy so that it runs with appropriate settings by default.
-
-4. **As a trader**, I want to test different leverage levels so that I can find the optimal risk/reward balance.
-
-5. **As a trader**, I want to see warnings when my position would have been liquidated so that I can adjust my risk parameters.
-
-6. **As a strategy developer**, I want to create strategies that can go short so that I can profit from downward price movements.
-
----
-
-## Functional Requirements
-
-### FR1: Market Type Enum and Configuration
-
-1.1. Create a `MarketType` enum with values: `SPOT`, `PERPETUAL`
-
-1.2. Each strategy class must have a `default_market_type` class attribute
-
-1.3. Market type can be overridden via CLI (optional, for testing)
-
-### FR2: Data Management
-
-2.1. Modify `DataManager` to support market type in data paths:
-   - Spot: `data/ccxt/{exchange}/spot/{symbol}/{timeframe}.csv`
-   - Perpetual: `data/ccxt/{exchange}/perpetual/{symbol}/{timeframe}.csv`
-
-2.2. Update `download` command to accept `--market` flag:
-   ```bash
-   uv run python main.py download --pair BTC/USDT --market perpetual
-   ```
-
-2.3. Use CCXT's market type parameter when fetching data:
-   - Spot: `exchange.fetch_ohlcv(symbol, timeframe, ...)`
-   - Perpetual: `exchange.fetch_ohlcv(symbol + ':USDT', timeframe, ...)`
-
-### FR3: Fee Structure
-
-3.1. Define default fees per market type (matching OKX):
-
-| Market Type | Maker Fee | Taker Fee | Notes |
-|-------------|-----------|-----------|-------|
-| Spot | 0.08% | 0.10% | No funding |
-| Perpetual | 0.02% | 0.05% | + funding |
-
-3.2. Allow fee override via CLI (existing `--fees` flag)
-
-### FR4: Leverage Support (Perpetual Only)
-
-4.1. Add `default_leverage` class attribute to strategies (default: 1 for spot, configurable for perpetual)
-
-4.2. Add `--leverage` CLI flag for backtest command
-
-4.3. Leverage affects:
-   - Position sizing (notional = cash * leverage)
-   - PnL calculation (multiplied by leverage)
-   - Liquidation threshold calculation
-
-4.4. Support leverage in grid search parameter grids
-
-### FR5: Funding Rate Simulation (Perpetual Only)
-
-5.1. Implement simplified funding rate model:
-   - Default rate: 0.01% per 8 hours (configurable)
-   - Applied every 8 hours to open positions
-   - Positive rate: Longs pay shorts
-   - Negative rate: Shorts pay longs
-
-5.2. Add `--funding-rate` CLI flag to override default
-
-5.3. Track cumulative funding paid/received in backtest stats
-
-### FR6: Short-Selling Support
-
-6.1. Modify `BaseStrategy.run()` signature to return 4 signal arrays:
-   ```python
-   def run(self, close, **kwargs) -> tuple[pd.DataFrame, pd.DataFrame, pd.DataFrame, pd.DataFrame]:
-       """
-       Returns:
-           long_entries: Boolean signals to open long positions
-           long_exits: Boolean signals to close long positions
-           short_entries: Boolean signals to open short positions
-           short_exits: Boolean signals to close short positions
-       """
-   ```
-
-6.2. Update `Backtester` to use VectorBT's `direction` parameter or dual portfolio simulation
-
-6.3. For spot market: Ignore short signals (log warning if present)
-
-6.4. For perpetual market: Process both long and short signals
-
-### FR7: Liquidation Warning
-
-7.1. Calculate liquidation price based on:
-   - Entry price
-   - Leverage
-   - Maintenance margin rate (OKX: ~0.4% for BTC)
-
-7.2. During backtest, check if price crosses liquidation threshold
-
-7.3. Log warning with details:
-   ```
-   WARNING: Position would be liquidated at bar 1234 (price: $45,000, liq_price: $44,820)
-   ```
-
-7.4. Include liquidation event count in backtest summary stats
-
-### FR8: Backtester Integration
-
-8.1. Modify `Backtester.run_strategy()` to accept market type from strategy
-
-8.2. Apply market-specific simulation parameters:
-   - Fees (if not overridden)
-   - Leverage
-   - Funding rate calculation
-   - Short-selling capability
-
-8.3. Update portfolio simulation to handle leveraged positions
-
-### FR9: Reporting Updates
-
-9.1. Add market type to backtest summary output
-
-9.2. Add new stats for perpetual backtests:
-   - Total funding paid/received
-   - Number of liquidation warnings
-   - Effective leverage used
-
-9.3. Update CSV exports to include market-specific columns
-
----
-
-## Non-Goals (Out of Scope)
-
-- **Coin-M (Inverse) Perpetuals:** Not included in v1
-- **Spot Margin Trading:** Not included in v1
-- **Expiry Futures:** Not included in v1
-- **Full Liquidation Simulation:** Only warnings, no automatic position closure
-- **Real Funding Rate Data:** Use simplified model; historical funding API integration is future work
-- **Cross-Margin Mode:** Assume isolated margin for simplicity
-- **Partial Liquidation:** Assume full liquidation threshold only
-
----
-
-## Design Considerations
-
-### Data Directory Structure (New)
-
-```
-data/ccxt/
-  okx/
-    spot/
-      BTC-USDT/
-        1m.csv
-        1d.csv
-    perpetual/
-      BTC-USDT/
-        1m.csv
-        1d.csv
-```
-
-### Strategy Class Example
-
-```python
-class MetaSupertrendStrategy(BaseStrategy):
-    default_market_type = MarketType.PERPETUAL
-    default_leverage = 5
-    default_sl_stop = 0.02
-    
-    def run(self, close, **kwargs):
-        # ... indicator logic ...
-        return long_entries, long_exits, short_entries, short_exits
-```
-
-### CLI Usage Examples
-
-```bash
-# Download perpetual data
-uv run python main.py download --pair BTC/USDT --market perpetual
-
-# Backtest with strategy defaults (uses strategy's default_market_type)
-uv run python main.py backtest --strategy meta_st --pair BTC/USDT
-
-# Override leverage
-uv run python main.py backtest --strategy meta_st --pair BTC/USDT --leverage 10
-
-# Grid search including leverage
-uv run python main.py backtest --strategy meta_st --pair BTC/USDT --grid
-# (leverage can be part of param grid in strategy factory)
-```
-
----
-
-## Technical Considerations
-
-1. **VectorBT Compatibility:**
-   - VectorBT's `Portfolio.from_signals()` supports `direction` parameter for long/short
-   - Alternatively, run two portfolios (long-only, short-only) and combine
-   - Leverage can be simulated via `size` parameter or post-processing returns
-
-2. **CCXT Market Type Handling:**
-   - OKX perpetual symbols use format: `BTC/USDT:USDT`
-   - Need to handle symbol conversion in DataManager
-
-3. **Funding Rate Timing:**
-   - OKX funding at 00:00, 08:00, 16:00 UTC
-   - Need to identify these timestamps in the data and apply funding
-
-4. **Backward Compatibility:**
-   - Existing strategies should work with minimal changes
-   - Default to `MarketType.SPOT` if not specified
-   - Existing 2-tuple return from `run()` should be interpreted as long-only
-
----
-
-## Success Metrics
-
-1. **Functional:** All existing backtests produce same results when run with `MarketType.SPOT`
-2. **Functional:** Perpetual backtests correctly apply funding every 8 hours
-3. **Functional:** Leverage multiplies both gains and losses correctly
-4. **Functional:** Short signals are processed for perpetual, ignored for spot
-5. **Usability:** Users can switch market types with minimal configuration
-6. **Accuracy:** Fee structures match OKX's published rates
-
----
-
-## Open Questions
-
-1. **Position Sizing with Leverage:**
-   - Should leverage affect `init_cash` interpretation (notional value) or position size directly?
-   - Recommendation: Affect position size; `init_cash` remains the actual margin deposited.
-
-2. **Multiple Positions:**
-   - Can strategies hold both long and short simultaneously (hedging)?
-   - Recommendation: No for v1; only one direction at a time.
-
-3. **Funding Rate Sign:**
-   - When funding is positive, longs pay shorts. Should we assume the user is always the "taker" of funding?
-   - Recommendation: Yes, apply funding based on position direction.
-
-4. **Migration Path:**
-   - Should we migrate existing data to new directory structure?
-   - Recommendation: No auto-migration; users re-download with `--market` flag.
-
----
-
-## Implementation Priority
-
-| Priority | Component | Complexity |
-|----------|-----------|------------|
-| 1 | MarketType enum + strategy defaults | Low |
-| 2 | DataManager market type support | Medium |
-| 3 | Fee structure per market type | Low |
-| 4 | Short-selling signal support | Medium |
-| 5 | Leverage simulation | Medium |
-| 6 | Funding rate simulation | Medium |
-| 7 | Liquidation warnings | Low |
-| 8 | Reporting updates | Low |
-| 9 | Grid search leverage support | Low |

tasks/prd-multi-pair-divergence-strategy.md

@@ -0,0 +1,321 @@
+# PRD: Multi-Pair Divergence Selection Strategy
+
+## 1. Introduction / Overview
+
+This document describes the **Multi-Pair Divergence Selection Strategy**, an extension of the existing BTC/ETH regime reversion system. The strategy expands spread analysis to the **top 10 cryptocurrencies by market cap**, calculates divergence scores for all tradeable pairs, and dynamically selects the **most divergent pair** for trading.
+
+The core hypothesis: by scanning multiple pairs simultaneously, we can identify stronger mean-reversion opportunities than focusing on a single pair, improving net PnL while maintaining the proven ML-based regime detection approach.
+
+---
+
+## 2. Goals
+
+1. **Extend regime detection** to top 10 market cap cryptocurrencies
+2. **Dynamically select** the most divergent tradeable pair each cycle
+3. **Integrate volatility** into dynamic SL/TP calculations
+4. **Filter correlated pairs** to avoid redundant positions
+5. **Improve net PnL** compared to single-pair BTC/ETH strategy
+6. **Backtest-first** implementation with walk-forward validation
+
+---
+
+## 3. User Stories
+
+### US-1: Multi-Pair Analysis
+> As a trader, I want the system to analyze spread divergence across multiple cryptocurrency pairs so that I can identify the best trading opportunity at any given moment.
+
+### US-2: Dynamic Pair Selection
+> As a trader, I want the system to automatically select and trade the pair with the highest divergence score (combination of Z-score magnitude and ML probability) so that I maximize mean-reversion profit potential.
+
+### US-3: Volatility-Adjusted Risk
+> As a trader, I want stop-loss and take-profit levels to adapt to each pair's volatility so that I avoid being stopped out prematurely on volatile assets while protecting profits on stable ones.
+
+### US-4: Correlation Filtering
+> As a trader, I want the system to avoid selecting pairs that are highly correlated with my current position so that I don't inadvertently double-down on the same market exposure.
+
+### US-5: Backtest Validation
+> As a researcher, I want to backtest this multi-pair strategy with walk-forward training so that I can validate improvement over the single-pair baseline without look-ahead bias.
+
+---
+
+## 4. Functional Requirements
+
+### 4.1 Data Management
+
+| ID | Requirement |
+|----|-------------|
+| FR-1.1 | System must support loading OHLCV data for top 10 market cap cryptocurrencies |
+| FR-1.2 | Target assets: BTC, ETH, SOL, XRP, BNB, DOGE, ADA, AVAX, LINK, DOT (configurable) |
+| FR-1.3 | System must identify all directly tradeable cross-pairs on OKX perpetuals |
+| FR-1.4 | System must align timestamps across all pairs for synchronized analysis |
+| FR-1.5 | System must handle missing data gracefully (skip pair if insufficient history) |
+
+### 4.2 Pair Generation
+
+| ID | Requirement |
+|----|-------------|
+| FR-2.1 | Generate all unique pairs from asset universe: N*(N-1)/2 pairs (e.g., 45 pairs for 10 assets) |
+| FR-2.2 | Filter pairs to only those directly tradeable on OKX (no USDT intermediate) |
+| FR-2.3 | Fallback: If cross-pair not available, calculate synthetic spread via USDT pairs |
+| FR-2.4 | Store pair metadata: base asset, quote asset, exchange symbol, tradeable flag |
+
+### 4.3 Feature Engineering (Per Pair)
+
+| ID | Requirement |
+|----|-------------|
+| FR-3.1 | Calculate spread ratio: `asset_a_close / asset_b_close` |
+| FR-3.2 | Calculate Z-Score with configurable rolling window (default: 24h) |
+| FR-3.3 | Calculate spread technicals: RSI(14), ROC(5), 1h change |
+| FR-3.4 | Calculate volume ratio and relative volume |
+| FR-3.5 | Calculate volatility ratio: `std(returns_a) / std(returns_b)` over Z-window |
+| FR-3.6 | Calculate realized volatility for each asset (for dynamic SL/TP) |
+| FR-3.7 | Merge on-chain data (funding rates, inflows) if available per asset |
+| FR-3.8 | Add pair identifier as categorical feature for universal model |
+
+### 4.4 Correlation Filtering
+
+| ID | Requirement |
+|----|-------------|
+| FR-4.1 | Calculate rolling correlation matrix between all assets (default: 168h / 7 days) |
+| FR-4.2 | Define correlation threshold (default: 0.85) |
+| FR-4.3 | If current position exists, exclude pairs where either asset has correlation > threshold with held asset |
+| FR-4.4 | Log filtered pairs with reason for exclusion |
+
+### 4.5 Divergence Scoring & Pair Selection
+
+| ID | Requirement |
+|----|-------------|
+| FR-5.1 | Calculate divergence score: `abs(z_score) * model_probability` |
+| FR-5.2 | Only consider pairs where `abs(z_score) > z_entry_threshold` (default: 1.0) |
+| FR-5.3 | Only consider pairs where `model_probability > prob_threshold` (default: 0.5) |
+| FR-5.4 | Apply correlation filter to eligible pairs |
+| FR-5.5 | Select pair with highest divergence score |
+| FR-5.6 | If no pair qualifies, signal "hold" |
+| FR-5.7 | Log all pair scores for analysis/debugging |
+
+### 4.6 ML Model (Universal)
+
+| ID | Requirement |
+|----|-------------|
+| FR-6.1 | Train single Random Forest model on all pairs combined |
+| FR-6.2 | Include `pair_id` as one-hot encoded or label-encoded feature |
+| FR-6.3 | Target: binary (1 = profitable reversion within horizon, 0 = no reversion) |
+| FR-6.4 | Walk-forward training: 70% train / 30% test split |
+| FR-6.5 | Daily retraining schedule (for live, configurable for backtest) |
+| FR-6.6 | Model hyperparameters: `n_estimators=300, max_depth=5, min_samples_leaf=30, class_weight={0:1, 1:3}` |
+| FR-6.7 | Save/load model with feature column metadata |
+
+### 4.7 Signal Generation
+
+| ID | Requirement |
+|----|-------------|
+| FR-7.1 | Direction: If `z_score > threshold` -> Short spread (short asset_a), If `z_score < -threshold` -> Long spread (long asset_a) |
+| FR-7.2 | Apply funding rate filter per asset (block if extreme funding opposes direction) |
+| FR-7.3 | Output signal: `{pair, action, side, probability, z_score, divergence_score, reason}` |
+
+### 4.8 Position Sizing
+
+| ID | Requirement |
+|----|-------------|
+| FR-8.1 | Base size: 100% of available subaccount balance |
+| FR-8.2 | Scale by divergence: `size_multiplier = 1.0 + (divergence_score - base_threshold) * scaling_factor` |
+| FR-8.3 | Cap multiplier between 1.0x and 2.0x |
+| FR-8.4 | Respect exchange minimum order size per asset |
+
+### 4.9 Dynamic SL/TP (Volatility-Adjusted)
+
+| ID | Requirement |
+|----|-------------|
+| FR-9.1 | Calculate asset realized volatility: `std(returns) * sqrt(24)` for daily vol |
+| FR-9.2 | Base SL: `entry_price * (1 - base_sl_pct * vol_multiplier)` for longs |
+| FR-9.3 | Base TP: `entry_price * (1 + base_tp_pct * vol_multiplier)` for longs |
+| FR-9.4 | `vol_multiplier = asset_volatility / baseline_volatility` (baseline = BTC volatility) |
+| FR-9.5 | Cap vol_multiplier between 0.5x and 2.0x to prevent extreme values |
+| FR-9.6 | Invert logic for short positions |
+
+### 4.10 Exit Conditions
+
+| ID | Requirement |
+|----|-------------|
+| FR-10.1 | Exit when Z-score crosses back through 0 (mean reversion complete) |
+| FR-10.2 | Exit when dynamic SL or TP hit |
+| FR-10.3 | No minimum holding period (can switch pairs immediately) |
+| FR-10.4 | If new pair has higher divergence score, close current and open new |
+
+### 4.11 Backtest Integration
+
+| ID | Requirement |
+|----|-------------|
+| FR-11.1 | Integrate with existing `engine/backtester.py` framework |
+| FR-11.2 | Support 1h timeframe (matching live trading) |
+| FR-11.3 | Walk-forward validation: train on 70%, test on 30% |
+| FR-11.4 | Output: trades log, equity curve, performance metrics |
+| FR-11.5 | Compare against single-pair BTC/ETH baseline |
+
+---
+
+## 5. Non-Goals (Out of Scope)
+
+1. **Live trading implementation** - Backtest validation first
+2. **Multi-position portfolio** - Single pair at a time for v1
+3. **Cross-exchange arbitrage** - OKX only
+4. **Alternative ML models** - Stick with Random Forest for consistency
+5. **Sub-1h timeframes** - 1h candles only for initial version
+6. **Leveraged positions** - 1x leverage for backtest
+7. **Portfolio-level VaR/risk budgeting** - Full subaccount allocation
+
+---
+
+## 6. Design Considerations
+
+### 6.1 Architecture
+
+```
+strategies/
+  multi_pair/
+    __init__.py
+    pair_scanner.py      # Generates all pairs, filters tradeable
+    feature_engine.py    # Calculates features for all pairs
+    correlation.py       # Rolling correlation matrix & filtering
+    divergence_scorer.py # Ranks pairs by divergence score
+    strategy.py          # Main strategy orchestration
+```
+
+### 6.2 Data Flow
+
+```
+1. Load OHLCV for all 10 assets
+2. Generate pair combinations (45 pairs)
+3. Filter to tradeable pairs (OKX check)
+4. Calculate features for each pair
+5. Train/load universal ML model
+6. Predict probability for all pairs
+7. Calculate divergence scores
+8. Apply correlation filter
+9. Select top pair
+10. Generate signal with dynamic SL/TP
+11. Execute in backtest engine
+```
+
+### 6.3 Configuration
+
+```python
+@dataclass
+class MultiPairConfig:
+    # Assets
+    assets: list[str] = field(default_factory=lambda: [
+        "BTC", "ETH", "SOL", "XRP", "BNB", 
+        "DOGE", "ADA", "AVAX", "LINK", "DOT"
+    ])
+    
+    # Thresholds
+    z_window: int = 24
+    z_entry_threshold: float = 1.0
+    prob_threshold: float = 0.5
+    correlation_threshold: float = 0.85
+    correlation_window: int = 168  # 7 days in hours
+    
+    # Risk
+    base_sl_pct: float = 0.06
+    base_tp_pct: float = 0.05
+    vol_multiplier_min: float = 0.5
+    vol_multiplier_max: float = 2.0
+    
+    # Model
+    train_ratio: float = 0.7
+    horizon: int = 102
+    profit_target: float = 0.005
+```
+
+---
+
+## 7. Technical Considerations
+
+### 7.1 Dependencies
+
+- Extend `DataManager` to load multiple symbols
+- Query OKX API for available perpetual cross-pairs
+- Reuse existing feature engineering from `RegimeReversionStrategy`
+
+### 7.2 Performance
+
+- Pre-calculate all pair features in batch (vectorized)
+- Cache correlation matrix (update every N candles, not every minute)
+- Model inference is fast (single predict call with all pairs as rows)
+
+### 7.3 Edge Cases
+
+- Handle pairs with insufficient history (< 200 bars) - exclude
+- Handle assets delisted mid-backtest - skip pair
+- Handle zero-volume periods - use last valid price
+
+---
+
+## 8. Success Metrics
+
+| Metric | Baseline (BTC/ETH) | Target |
+|--------|-------------------|--------|
+| Net PnL | Current performance | > 10% improvement |
+| Number of Trades | N | Comparable or higher |
+| Win Rate | Baseline % | Maintain or improve |
+| Average Trade Duration | Baseline hours | Flexible |
+| Max Drawdown | Baseline % | Not significantly worse |
+
+---
+
+## 9. Open Questions
+
+1. **OKX Cross-Pairs**: Need to verify which cross-pairs are available on OKX perpetuals. May need to fallback to synthetic spreads for most pairs.
+
+2. **On-Chain Data**: CryptoQuant data currently covers BTC/ETH. Should we:
+   - Run without on-chain features for other assets?
+   - Source alternative on-chain data?
+   - Use funding rates only (available from OKX)?
+
+3. **Pair ID Encoding**: For the universal model, should pair_id be:
+   - One-hot encoded (adds 45 features)?
+   - Label encoded (single ordinal feature)?
+   - Hierarchical (base_asset + quote_asset as separate features)?
+
+4. **Synthetic Spreads**: If trading SOL/DOT spread but only USDT pairs available:
+   - Calculate spread synthetically: `SOL-USDT / DOT-USDT`
+   - Execute as two legs: Long SOL-USDT, Short DOT-USDT
+   - This doubles fees and adds execution complexity. Include in v1?
+
+---
+
+## 10. Implementation Phases
+
+### Phase 1: Data & Infrastructure (Est. 2-3 days)
+- Extend DataManager for multi-symbol loading
+- Build pair scanner with OKX tradeable filter
+- Implement correlation matrix calculation
+
+### Phase 2: Feature Engineering (Est. 2 days)
+- Adapt existing feature calculation for arbitrary pairs
+- Add pair identifier feature
+- Batch feature calculation for all pairs
+
+### Phase 3: Model & Scoring (Est. 2 days)
+- Train universal model on all pairs
+- Implement divergence scoring
+- Add correlation filtering to pair selection
+
+### Phase 4: Strategy Integration (Est. 2-3 days)
+- Implement dynamic SL/TP with volatility
+- Integrate with backtester
+- Build strategy orchestration class
+
+### Phase 5: Validation & Comparison (Est. 2 days)
+- Run walk-forward backtest
+- Compare against BTC/ETH baseline
+- Generate performance report
+
+**Total Estimated Effort: 10-12 days**
+
+---
+
+*Document Version: 1.0*  
+*Created: 2026-01-15*  
+*Author: AI Assistant*  
+*Status: Draft - Awaiting Review*

tasks/prd-vectorbt-migration.md

@@ -1,76 +0,0 @@
-# PRD: VectorBT Migration & CCXT Integration
-
-## 1. Introduction
-The goal of this project is to refactor the current backtesting infrastructure to a professional-grade stack using **VectorBT** for high-performance backtesting and **CCXT** for robust historical data acquisition. The system will support rapid prototyping of "many simple strategies," parameter optimization (Grid Search), and stability testing (Walk-Forward Analysis).
-
-## 2. Goals
--   **Replace Custom Backtester:** Retire the existing loop-based backtesting logic in favor of vectorized operations using `vectorbt`.
--   **Automate Data Collection:** Implement a `ccxt` based downloader to fetch and cache OHLCV data from OKX (and other exchanges) automatically.
--   **Enable Optimization:** Built-in support for Grid Search to find optimal strategy parameters.
--   **Validation:** Implement Walk-Forward Analysis (WFA) to validate strategy robustness and prevent overfitting.
--   **Standardized Reporting:** Generate consistent outputs: Console summaries, CSV logs, and VectorBT interactive plots.
-
-## 3. User Stories
--   **Data Acquisition:** "As a user, I want to run a command `download_data --pair BTC/USDT --exchange okx` and have the system fetch historical 1-minute candles and save them to `data/ccxt/okx/BTC-USDT/1m.csv`."
--   **Strategy Dev:** "As a researcher, I want to define a new strategy by simply writing a class/function that defines entry/exit signals, without worrying about the backtesting loop."
--   **Optimization:** "As a researcher, I want to say 'Optimize RSI period between 10 and 20' and get a heatmap of results."
--   **Validation:** "As a researcher, I want to verify if my 'best' parameters work on unseen data using Walk-Forward Analysis."
--   **Analysis:** "As a user, I want to see an equity curve and key metrics (Sharpe, Drawdown) immediately after a test run."
-
-## 4. Functional Requirements
-
-### 4.1 Data Module (`data_manager`)
--   **Exchange Interface:** Use `ccxt` to connect to exchanges (initially OKX).
--   **Fetching Logic:** Fetch OHLCV data in chunks to handle rate limits and long histories.
--   **Storage:** Save data to standardized paths: `data/ccxt/{exchange}/{pair}_{timeframe}.csv`.
--   **Loading:** Utility to load saved CSVs into a Pandas DataFrame compatible with `vectorbt`.
-
-### 4.2 Strategy Interface (`strategies/`)
--   **Base Protocol:** Define a standard structure for strategies. A strategy should return/define:
-    -   Indicator calculations (Vectorized).
-    -   Entry signals (Boolean Series).
-    -   Exit signals (Boolean Series).
--   **Parameterization:** Strategies must accept dynamic parameters to support Grid Search.
-
-### 4.3 Backtest Engine (`engine.py`)
--   **Simulation:** Use `vectorbt.Portfolio.from_signals` (or similar) for fast simulation.
--   **Cost Model:** Support configurable fees (maker/taker) and slippage estimates.
--   **Grid Search:** Utilize `vectorbt`'s parameter broadcasting to run many variations simultaneously.
--   **Walk-Forward Analysis:**
-    -   Implement a splitting mechanism (e.g., `vectorbt.Splitter`) to divide data into In-Sample (Train) and Out-of-Sample (Test) sets.
-    -   Execute optimization on Train, validate on Test.
-
-### 4.4 Reporting (`reporting.py`)
--   **Console:** Print key metrics: Total Return, Sharpe Ratio, Max Drawdown, Win Rate, Count of Trades.
--   **Files:** Save detailed trade logs and metrics summaries to `backtest_logs/`.
--   **Visuals:** Generate and save/show `vectorbt` plots (Equity curve, Drawdowns).
-
-## 5. Non-Goals
--   Real-time live trading execution (this is strictly for research/backtesting).
--   Complex Machine Learning models (initially focusing on indicator-based logic).
--   High-frequency tick-level backtesting (1-minute granularity is the target).
-
-## 6. Technical Architecture Proposal
-```text
-project_root/
-├── data/
-│   └── ccxt/               # New data storage structure
-├── strategies/             # Strategy definitions
-│   ├── __init__.py
-│   ├── base.py             # Abstract Base Class
-│   └── ma_cross.py         # Example strategy
-├── engine/
-│   ├── data_loader.py      # CCXT wrapper
-│   ├── backtester.py       # VBT runner
-│   └── optimizer.py        # Grid Search & WFA logic
-├── main.py                 # CLI entry point
-└── pyproject.toml
-```
-
-## 7. Success Metrics
--   Can download 1 year of 1m BTC/USDT data from OKX in < 2 minutes.
--   Can run a 100-parameter grid search on 1 year of 1m data in < 10 seconds.
--   Walk-forward analysis produces a clear "Robustness Score" or visual comparison of Train vs Test performance.
-
-## 8. Open Questions
--   Do we need to handle funding rates for perp futures in the PnL calculation immediately? (Assumed NO for V1, stick to spot/simple futures price action).

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 source = { virtual = "." }
 dependencies = [
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     { name = "pandas" },
@@ -850,7 +982,9 @@ dependencies = [
     { name = "python-dotenv" },
     { name = "requests" },
     { name = "scikit-learn" },
+    { name = "sqlalchemy" },
     { name = "ta" },
+    { name = "uvicorn", extra = ["standard"] },
     { name = "vectorbt" },
 ]
 
@@ -862,6 +996,7 @@ dev = [
 [package.metadata]
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+    { name = "fastapi", specifier = ">=0.115.0" },
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     { name = "numpy", specifier = ">=2.3.2" },
     { name = "pandas", specifier = ">=2.3.1" },
@@ -870,7 +1005,9 @@ requires-dist = [
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     { name = "requests", specifier = ">=2.32.5" },
     { name = "scikit-learn", specifier = ">=1.6.0" },
+    { name = "sqlalchemy", specifier = ">=2.0.0" },
     { name = "ta", specifier = ">=0.11.0" },
+    { name = "uvicorn", extras = ["standard"], specifier = ">=0.34.0" },
     { name = "vectorbt", specifier = ">=0.28.2" },
 ]
 provides-extras = ["dev"]
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