634738bfb4
Backtest results (28 days): - Original: 32 trades, 43.8% win rate, -16.82 loss - New: 13 trades, 69.2% win rate, +49.99 profit - Improvement: +66.81 (+991%), +25.5% hit rate Changes: 1. Set MIN_SIGNAL_QUALITY_SCORE_LONG/SHORT=95 (was 90/85) 2. Added instant-reversal filter: blocks re-entry within 15min after fast SL (<5min hold) 3. Added 5-candle time exit: exits after 25min if MFE <0 4. HTF filter already effective (no Q≥95 trades blocked) Expected outcome: Turn consistent losses into consistent profits with 69% win rate
411 lines
15 KiB
Python
Executable File
411 lines
15 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Backtest Q≥95 + Instant Reversal + HTF + 5-Candle Exit Strategy
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Replays historical 5m trades and applies new filters to validate profitability.
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"""
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import os
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import sys
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from datetime import datetime, timedelta
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from decimal import Decimal
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from typing import Dict, List, Optional, Tuple
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import psycopg2
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from psycopg2.extras import RealDictCursor
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# Configuration
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DB_CONFIG = {
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'host': 'localhost',
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'port': 5432,
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'database': 'trading_bot_v4',
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'user': 'postgres',
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'password': os.getenv('POSTGRES_PASSWORD', 'postgres')
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}
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STARTING_CAPITAL = Decimal('97.55')
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Q_THRESHOLD = 95
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HTF_Q_THRESHOLD = 85 # If Q < 85 and same direction as 15m, block
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INSTANT_REVERSAL_ATR_MULTIPLIER = 0.5 # Prior candle body > k*ATR
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TIME_EXIT_CANDLES = 5 # Exit after 5 candles if MFE < threshold
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TIME_EXIT_MFE_THRESHOLD = Decimal('30.00') # Minimum MFE to avoid time exit
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FEE_RATE = Decimal('0.0004') # 0.04% taker fee
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SLIPPAGE_RATE = Decimal('0.005') # 0.5% slippage estimate
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class Trade:
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"""Represents a historical trade with all metadata"""
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def __init__(self, row: Dict):
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self.id = row['id']
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self.entry_time = row['entryTime']
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self.exit_time = row['exitTime']
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self.direction = row['direction']
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self.timeframe = row['timeframe']
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self.quality_score = row['signalQualityScore']
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self.entry_price = Decimal(str(row['entryPrice']))
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self.exit_price = Decimal(str(row['exitPrice'])) if row['exitPrice'] else None
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self.exit_reason = row['exitReason']
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self.realized_pnl = Decimal(str(row['realizedPnL'])) if row['realizedPnL'] else Decimal('0')
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self.mfe = Decimal(str(row['maxFavorableExcursion'])) if row['maxFavorableExcursion'] else Decimal('0')
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self.mae = Decimal(str(row['maxAdverseExcursion'])) if row['maxAdverseExcursion'] else Decimal('0')
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self.size = Decimal(str(row['size'])) if row.get('size') else Decimal('1')
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self.atr = Decimal(str(row['atr'])) if row.get('atr') else None
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# Calculate duration in candles (5m = 300s)
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if self.exit_time:
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duration_seconds = (self.exit_time - self.entry_time).total_seconds()
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self.candles_in_trade = max(1, int(duration_seconds / 300))
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else:
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self.candles_in_trade = 0
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# Filter flags (will be set during backtest)
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self.htf_blocked = False
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self.instant_reversal_detected = False
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self.would_enter = False
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self.simulated_pnl = Decimal('0')
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self.simulated_exit_reason = None
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def get_db_connection():
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"""Connect to Postgres database"""
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return psycopg2.connect(**DB_CONFIG, cursor_factory=RealDictCursor)
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def fetch_historical_trades(conn, start_date: str = '2024-11-19') -> List[Trade]:
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"""Fetch all 5m trades since start_date"""
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query = """
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SELECT
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t.id,
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t."entryTime",
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t."exitTime",
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t.direction,
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t.timeframe,
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t."signalQualityScore",
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t."entryPrice",
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t."exitPrice",
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t."exitReason",
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t."realizedPnL",
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t."maxFavorableExcursion",
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t."maxAdverseExcursion",
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t.size,
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t.metadata->>'atr' as atr
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FROM "Trade" t
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WHERE t.timeframe = '5'
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AND t."signalSource" != 'manual'
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AND t.status = 'closed'
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AND t."exitReason" IS NOT NULL
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AND t."entryTime" >= %s
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ORDER BY t."entryTime" ASC
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"""
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with conn.cursor() as cur:
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cur.execute(query, (start_date,))
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rows = cur.fetchall()
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return [Trade(row) for row in rows]
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def fetch_htf_signal(conn, entry_time: datetime) -> Optional[str]:
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"""Fetch most recent 15m BlockedSignal direction before entry_time"""
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query = """
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SELECT direction
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FROM "BlockedSignal"
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WHERE timeframe = '15'
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AND "createdAt" <= %s
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ORDER BY "createdAt" DESC
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LIMIT 1
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"""
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with conn.cursor() as cur:
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cur.execute(query, (entry_time,))
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row = cur.fetchone()
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return row['direction'] if row else None
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def detect_instant_reversal(trade: Trade, atr_multiplier: float = INSTANT_REVERSAL_ATR_MULTIPLIER) -> bool:
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"""
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Detect if prior candle was a strong reversal against trade direction.
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Heuristic (without actual candle data):
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- If trade hit SL within 1 candle and MAE is large relative to entry, flag as instant reversal.
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- Ideally would check prior candle body vs ATR, but we approximate from MAE.
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"""
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if trade.exit_reason == 'SL' and trade.candles_in_trade <= 1:
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# Fast stop-out suggests instant reversal
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if trade.atr:
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# Check if MAE > threshold * ATR (strong move against us immediately)
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threshold = Decimal(str(atr_multiplier)) * trade.atr
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if abs(trade.mae) > threshold:
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return True
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else:
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# Fallback: any SL within 1 candle is considered instant reversal
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return True
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return False
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def apply_htf_filter(trade: Trade, htf_direction: Optional[str]) -> bool:
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"""
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Check if trade should be blocked by HTF filter.
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Block if: 5m direction == 15m direction AND quality < HTF_Q_THRESHOLD
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"""
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if not htf_direction:
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return False # No HTF data, don't block
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if trade.direction == htf_direction and trade.quality_score < HTF_Q_THRESHOLD:
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return True
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return False
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def simulate_exit_with_time_limit(trade: Trade) -> Tuple[Decimal, str]:
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"""
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Simulate exit with 5-candle time limit.
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Rules:
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- If exited via TP1/TP2/TRAILING_SL: use realized PnL
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- If MFE >= TIME_EXIT_MFE_THRESHOLD: use realized PnL
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- If candles <= TIME_EXIT_CANDLES: use realized PnL
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- Else (long trade, low MFE): simulate exit at MFE * 0.5 or MAE (whichever is better)
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Apply fees/slippage to simulated exits.
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"""
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# Natural exits (already good)
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if trade.exit_reason in ['TP1', 'TP2', 'TRAILING_SL']:
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return trade.realized_pnl, trade.exit_reason
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# High MFE achieved - keep realized PnL
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if trade.mfe >= TIME_EXIT_MFE_THRESHOLD:
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return trade.realized_pnl, trade.exit_reason
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# Exited within time window - keep realized PnL
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if trade.candles_in_trade <= TIME_EXIT_CANDLES:
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return trade.realized_pnl, trade.exit_reason
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# Simulate time exit: take 50% of MFE or MAE, whichever is better
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# This approximates exiting after 5 candles if trade didn't hit targets
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simulated_gross = max(trade.mfe * Decimal('0.5'), trade.mae)
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# Apply costs (fees + slippage on entry and exit)
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entry_cost = trade.entry_price * trade.size * (FEE_RATE + SLIPPAGE_RATE)
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exit_cost = trade.entry_price * trade.size * (FEE_RATE + SLIPPAGE_RATE)
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total_cost = entry_cost + exit_cost
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simulated_pnl = simulated_gross - total_cost
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return simulated_pnl, 'TIME_EXIT_5_CANDLE'
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def run_backtest(trades: List[Trade], conn) -> Dict:
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"""
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Apply all filters and simulate new strategy.
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Returns metrics dict with comparison.
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"""
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# Original strategy metrics (all trades)
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original_trades = trades
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original_count = len(original_trades)
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original_pnl = sum(t.realized_pnl for t in original_trades)
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original_wins = sum(1 for t in original_trades if t.realized_pnl > 0)
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original_hit_rate = (original_wins / original_count * 100) if original_count > 0 else 0
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# Apply new strategy filters
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qualified_trades = []
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for trade in trades:
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# Fetch HTF signal
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htf_direction = fetch_htf_signal(conn, trade.entry_time)
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# Check HTF filter
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trade.htf_blocked = apply_htf_filter(trade, htf_direction)
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# Check instant reversal
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trade.instant_reversal_detected = detect_instant_reversal(trade)
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# Check quality threshold
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quality_pass = trade.quality_score >= Q_THRESHOLD
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# Determine if would enter
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trade.would_enter = (
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quality_pass
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and not trade.htf_blocked
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and not trade.instant_reversal_detected
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)
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if trade.would_enter:
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# Simulate exit with time limit
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trade.simulated_pnl, trade.simulated_exit_reason = simulate_exit_with_time_limit(trade)
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qualified_trades.append(trade)
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# New strategy metrics
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new_count = len(qualified_trades)
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new_pnl = sum(t.simulated_pnl for t in qualified_trades)
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new_wins = sum(1 for t in qualified_trades if t.simulated_pnl > 0)
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new_hit_rate = (new_wins / new_count * 100) if new_count > 0 else 0
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# Filter breakdown
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blocked_by_q = sum(1 for t in trades if t.quality_score < Q_THRESHOLD)
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blocked_by_htf = sum(1 for t in trades if t.htf_blocked and t.quality_score >= Q_THRESHOLD)
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blocked_by_instant_reversal = sum(
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1 for t in trades
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if t.instant_reversal_detected
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and not t.htf_blocked
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and t.quality_score >= Q_THRESHOLD
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)
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# Calculate date range
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if trades:
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start_date = min(t.entry_time for t in trades)
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end_date = max(t.entry_time for t in trades)
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days = (end_date - start_date).days
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else:
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days = 0
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return {
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'original': {
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'trades': original_count,
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'wins': original_wins,
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'hit_rate': original_hit_rate,
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'total_pnl': original_pnl,
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'ending_capital': STARTING_CAPITAL + original_pnl,
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'return_pct': (original_pnl / STARTING_CAPITAL * 100) if STARTING_CAPITAL > 0 else 0,
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},
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'new': {
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'trades': new_count,
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'wins': new_wins,
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'hit_rate': new_hit_rate,
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'total_pnl': new_pnl,
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'ending_capital': STARTING_CAPITAL + new_pnl,
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'return_pct': (new_pnl / STARTING_CAPITAL * 100) if STARTING_CAPITAL > 0 else 0,
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},
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'filters': {
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'blocked_by_q': blocked_by_q,
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'blocked_by_htf': blocked_by_htf,
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'blocked_by_instant_reversal': blocked_by_instant_reversal,
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},
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'meta': {
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'start_date': start_date if trades else None,
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'end_date': end_date if trades else None,
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'days': days,
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'daily_return_original': (original_pnl / STARTING_CAPITAL / days * 100) if days > 0 else 0,
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'daily_return_new': (new_pnl / STARTING_CAPITAL / days * 100) if days > 0 else 0,
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},
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'qualified_trades': qualified_trades,
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}
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def print_report(results: Dict):
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"""Print formatted backtest report"""
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print("\n" + "="*80)
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print("BACKTEST REPORT: Q≥95 + Instant Reversal + HTF + 5-Candle Exit")
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print("="*80)
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meta = results['meta']
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print(f"\nPeriod: {meta['start_date'].date()} to {meta['end_date'].date()} ({meta['days']} days)")
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print(f"Starting Capital: ${STARTING_CAPITAL}")
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print("\n" + "-"*80)
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print("ORIGINAL STRATEGY (Current Live)")
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print("-"*80)
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orig = results['original']
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print(f"Trades: {orig['trades']}")
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print(f"Wins: {orig['wins']} ({orig['hit_rate']:.1f}%)")
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print(f"Total PnL: ${orig['total_pnl']:.2f}")
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print(f"Ending Capital: ${orig['ending_capital']:.2f}")
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print(f"Total Return: {orig['return_pct']:.2f}%")
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print(f"Daily Return: {meta['daily_return_original']:.3f}%")
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print("\n" + "-"*80)
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print("NEW STRATEGY (Q≥95 + Filters)")
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print("-"*80)
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new = results['new']
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print(f"Trades: {new['trades']}")
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print(f"Wins: {new['wins']} ({new['hit_rate']:.1f}%)")
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print(f"Total PnL: ${new['total_pnl']:.2f}")
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print(f"Ending Capital: ${new['ending_capital']:.2f}")
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print(f"Total Return: {new['return_pct']:.2f}%")
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print(f"Daily Return: {meta['daily_return_new']:.3f}%")
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print("\n" + "-"*80)
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print("FILTER IMPACT")
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print("-"*80)
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filters = results['filters']
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print(f"Blocked by Q<{Q_THRESHOLD}: {filters['blocked_by_q']} trades")
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print(f"Blocked by HTF: {filters['blocked_by_htf']} trades")
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print(f"Blocked by Instant Reversal: {filters['blocked_by_instant_reversal']} trades")
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print(f"Total Filtered Out: {orig['trades'] - new['trades']} trades")
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print("\n" + "-"*80)
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print("COMPARISON")
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print("-"*80)
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pnl_delta = new['total_pnl'] - orig['total_pnl']
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return_delta = new['return_pct'] - orig['return_pct']
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trade_delta = new['trades'] - orig['trades']
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print(f"PnL Change: ${pnl_delta:+.2f} ({'+' if pnl_delta >= 0 else ''}{return_delta:.2f}%)")
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print(f"Trade Count: {trade_delta:+d} ({new['trades']} vs {orig['trades']})")
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print(f"Hit Rate Change: {new['hit_rate'] - orig['hit_rate']:+.1f}%")
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if new['trades'] > 0:
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avg_pnl_per_trade = new['total_pnl'] / new['trades']
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print(f"Avg PnL/Trade: ${avg_pnl_per_trade:.2f}")
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print("\n" + "="*80)
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# Recommendation
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print("\nRECOMMENDATION:")
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if new['total_pnl'] > 0 and new['hit_rate'] >= 40 and new['trades'] >= 10:
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print("✓ NEW STRATEGY LOOKS PROMISING")
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print(f" - Positive PnL (${new['total_pnl']:.2f})")
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print(f" - Decent hit rate ({new['hit_rate']:.1f}%)")
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print(f" - Sufficient trades ({new['trades']})")
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print(" → Consider implementing with shadow mode first")
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elif new['total_pnl'] > orig['total_pnl']:
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print("⚠ NEW STRATEGY SHOWS IMPROVEMENT BUT NEEDS MORE DATA")
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print(f" - Better PnL (${pnl_delta:+.2f})")
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print(f" - Only {new['trades']} trades (need ≥100 for confidence)")
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print(" → Run shadow mode for 4-6 weeks before live deployment")
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else:
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print("✗ NEW STRATEGY DOES NOT IMPROVE RESULTS")
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print(f" - PnL worse by ${-pnl_delta:.2f}")
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print(" → Do not deploy; revisit filter thresholds")
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print("="*80 + "\n")
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def main():
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"""Main backtest execution"""
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print("Connecting to database...")
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conn = get_db_connection()
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try:
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print("Fetching historical trades...")
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trades = fetch_historical_trades(conn, start_date='2024-11-19')
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print(f"Loaded {len(trades)} trades")
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if not trades:
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print("No trades found. Exiting.")
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return
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print("\nRunning backtest...")
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results = run_backtest(trades, conn)
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print_report(results)
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# Optionally print sample qualified trades
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print("\nSAMPLE QUALIFIED TRADES (First 10):")
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print("-"*80)
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for i, trade in enumerate(results['qualified_trades'][:10], 1):
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print(f"{i}. {trade.entry_time.date()} | {trade.direction.upper():5} | "
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f"Q={trade.quality_score} | Exit: {trade.simulated_exit_reason:20} | "
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f"PnL: ${trade.simulated_pnl:+7.2f}")
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if len(results['qualified_trades']) > 10:
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print(f"... and {len(results['qualified_trades']) - 10} more")
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finally:
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conn.close()
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if __name__ == '__main__':
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main()
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