feat: Pattern Lab — historical backtest engine for pattern discovery
- Remove all built-in patterns (no proof of legitimacy); seed_builtin_patterns is now a no-op
- DB: add backtest_lab_runs table + backtest_hits/runs_count columns on patterns
- services/pattern_lab.py: build_historical_context (yfinance + RSI/MA200),
run_ai_backtest (GPT-4o as historical analyst), evaluate_outcomes (actual moves at T+horizon)
- routers/pattern_lab.py: POST /run, POST /evaluate/{id}, GET /runs, DELETE /runs/{id},
POST /save-pattern (promotes hit pattern to library with reliability counters)
- PatternLab.tsx: 34 preset events 2015-2025 (macro/geo/credit/fx/commodities/volatility/tech),
3-panel layout — preset selector + wizard + run history, market data table,
AI pattern cards with hit/miss outcome display, Save to Library button
- useApi.ts: usePatternLabRuns, useRunPatternLab, useEvaluatePatternLab, useSaveLabPattern, useDeleteLabRun
- Sidebar + App.tsx: /pattern-lab route + FlaskConical nav link
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
@@ -83,12 +83,39 @@ def init_db():
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"ALTER TABLE custom_patterns ADD COLUMN signal_direction TEXT",
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# Pattern Explorer — taxonomy tree path
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"ALTER TABLE custom_patterns ADD COLUMN taxonomy_path TEXT DEFAULT '[]'",
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# Pattern Lab — backtest reliability tracking
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"ALTER TABLE custom_patterns ADD COLUMN backtest_hits INTEGER DEFAULT 0",
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"ALTER TABLE custom_patterns ADD COLUMN backtest_runs_count INTEGER DEFAULT 0",
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# Remove all built-in patterns (no proof of legitimacy)
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"DELETE FROM custom_patterns WHERE source = 'builtin'",
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]:
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try:
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c.execute(_sql)
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except Exception:
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pass
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# Pattern Lab — historical backtest runs
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c.execute("""CREATE TABLE IF NOT EXISTS backtest_lab_runs (
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id TEXT PRIMARY KEY,
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preset_id TEXT,
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theme TEXT NOT NULL,
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analysis_date TEXT NOT NULL,
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horizon_days INTEGER NOT NULL,
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assets TEXT NOT NULL,
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theme_hint TEXT,
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context_snapshot TEXT,
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ai_result TEXT,
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outcome TEXT,
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status TEXT DEFAULT 'pending',
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error_msg TEXT,
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created_at TEXT DEFAULT (datetime('now')),
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evaluated_at TEXT
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)""")
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try:
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c.execute("CREATE INDEX IF NOT EXISTS idx_blr_date ON backtest_lab_runs(analysis_date DESC)")
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except Exception:
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pass
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# Phase 4.2 — Régime clusters (K-Means sur gauges macro)
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c.execute("""CREATE TABLE IF NOT EXISTS regime_clusters (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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@@ -885,37 +912,8 @@ def update_position_notes(pos_id: str, notes: str):
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# ── Custom Patterns ────────────────────────────────────────────────────────────
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def seed_builtin_patterns(builtin_patterns: List[Dict[str, Any]]):
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"""Seed built-in patterns into DB (idempotent). Always updates taxonomy_path."""
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conn = get_conn()
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existing = {r[0] for r in conn.execute("SELECT id FROM custom_patterns").fetchall()}
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for p in builtin_patterns:
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taxonomy_json = json.dumps(p.get("taxonomy_path", []))
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if p["id"] not in existing:
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conn.execute("""INSERT INTO custom_patterns (
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id, name, description, triggers, keywords, historical_instances,
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suggested_trades, asset_class, expected_move_pct, probability,
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horizon_days, source, is_active, taxonomy_path, updated_at
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) VALUES (?,?,?,?,?,?,?,?,?,?,?,'builtin',1,?,datetime('now'))""", (
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p["id"],
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p.get("name", ""),
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p.get("description", ""),
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json.dumps(p.get("triggers", [])),
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json.dumps(p.get("keywords", [])),
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json.dumps(p.get("historical_instances", [])),
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json.dumps(p.get("suggested_trades", [])),
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p.get("asset_class", "indices"),
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p.get("expected_move_pct", 0),
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p.get("probability", 0.5),
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p.get("horizon_days", 30),
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taxonomy_json,
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))
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else:
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conn.execute(
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"UPDATE custom_patterns SET taxonomy_path=? WHERE id=? AND source='builtin'",
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(taxonomy_json, p["id"])
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)
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conn.commit()
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conn.close()
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"""No-op: built-in patterns removed in favour of Pattern Lab backtested patterns."""
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pass
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def save_custom_pattern(pattern: Dict[str, Any]) -> str:
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241
backend/services/pattern_lab.py
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241
backend/services/pattern_lab.py
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@@ -0,0 +1,241 @@
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"""
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Pattern Lab — Historical backtest engine for pattern discovery.
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Workflow:
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1. build_historical_context(date, tickers) — pull prices + technicals via yfinance
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2. run_ai_backtest(context, hint, horizon) — GPT-4o acts as analyst on that past date
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3. evaluate_outcomes(run) — fetch actual prices at T+horizon, score each idea
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"""
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import json
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import logging
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from datetime import datetime, timedelta
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from typing import Optional
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import numpy as np
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import pandas as pd
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import yfinance as yf
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_log = logging.getLogger(__name__)
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# ── Context builder ────────────────────────────────────────────────────────────
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def _fetch_ticker(ticker: str, start: str, end: str) -> Optional[pd.DataFrame]:
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try:
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df = yf.download(ticker, start=start, end=end, progress=False, auto_adjust=True)
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if isinstance(df.columns, pd.MultiIndex):
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df.columns = df.columns.get_level_values(0)
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return df if not df.empty else None
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except Exception as e:
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_log.warning(f"[PatternLab] yfinance error for {ticker}: {e}")
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return None
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def _rsi(closes: pd.Series, period: int = 14) -> Optional[float]:
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if len(closes) < period + 1:
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return None
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delta = closes.diff()
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gain = delta.clip(lower=0).rolling(period).mean()
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loss = (-delta.clip(upper=0)).rolling(period).mean()
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rs = gain / loss
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val = 100 - (100 / (1 + rs.iloc[-1]))
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return round(float(val), 1) if not np.isnan(val) else None
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def build_historical_context(analysis_date: str, tickers: list) -> dict:
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dt = datetime.strptime(analysis_date, "%Y-%m-%d")
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hist_start = (dt - timedelta(days=400)).strftime("%Y-%m-%d")
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hist_end = (dt + timedelta(days=3)).strftime("%Y-%m-%d")
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context: dict = {"analysis_date": analysis_date, "assets": {}}
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all_tickers = list(tickers)
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if "^VIX" not in all_tickers:
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all_tickers.append("^VIX")
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for ticker in all_tickers:
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df = _fetch_ticker(ticker, hist_start, hist_end)
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if df is None or "Close" not in df.columns:
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context["assets"][ticker] = {"error": "no data"}
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continue
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df.index = pd.to_datetime(df.index).tz_localize(None)
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sub = df[df.index.normalize() <= dt].copy()
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if sub.empty:
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context["assets"][ticker] = {"error": "no data before date"}
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continue
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closes = sub["Close"].dropna()
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price = float(closes.iloc[-1])
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def ret(days: int) -> Optional[float]:
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past = sub[sub.index.normalize() <= dt - timedelta(days=days)]
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if past.empty:
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return None
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p0 = float(past["Close"].dropna().iloc[-1])
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return round((price / p0 - 1) * 100, 2) if p0 else None
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ma50 = round(float(closes.tail(50).mean()), 2) if len(closes) >= 50 else None
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ma200 = round(float(closes.tail(200).mean()), 2) if len(closes) >= 200 else None
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context["assets"][ticker] = {
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"price": round(price, 4),
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"ret_1w": ret(5),
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"ret_1m": ret(21),
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"ret_3m": ret(63),
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"ret_ytd": ret(int((dt - datetime(dt.year, 1, 1)).days)),
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"rsi_14": _rsi(closes.tail(60)),
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"ma50": ma50,
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"ma200": ma200,
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"pct_from_ma200": round((price / ma200 - 1) * 100, 2) if ma200 else None,
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}
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return context
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# ── AI analysis ────────────────────────────────────────────────────────────────
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async def run_ai_backtest(context: dict, theme_hint: str, horizon_days: int, openai_key: str) -> dict:
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from openai import AsyncOpenAI
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client = AsyncOpenAI(api_key=openai_key)
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analysis_date = context["analysis_date"]
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assets = context.get("assets", {})
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lines = []
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for ticker, d in assets.items():
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if "error" in d:
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continue
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line = f" {ticker}: {d.get('price', '?')}"
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if d.get("ret_1w") is not None: line += f" 1W:{d['ret_1w']:+.1f}%"
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if d.get("ret_1m") is not None: line += f" 1M:{d['ret_1m']:+.1f}%"
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if d.get("ret_3m") is not None: line += f" 3M:{d['ret_3m']:+.1f}%"
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if d.get("rsi_14") is not None: line += f" RSI:{d['rsi_14']:.0f}"
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if d.get("pct_from_ma200") is not None: line += f" vsMA200:{d['pct_from_ma200']:+.1f}%"
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lines.append(line)
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market_block = "\n".join(lines) if lines else "No market data available."
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prompt = f"""You are a senior macro/options trader. Today is {analysis_date}.
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You have full knowledge of what was happening in markets and geopolitics on this specific date.
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## REAL MARKET DATA — {analysis_date}
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{market_block}
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## CONTEXT / THEME
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{theme_hint}
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## INSTRUCTIONS
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Using the market data above AND your knowledge of the historical context on {analysis_date}:
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- Identify 2 to 4 high-conviction trade patterns that were present at this time.
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- For each pattern, recommend the best options/futures strategy.
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- The investment horizon is {horizon_days} days from {analysis_date}.
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For each pattern you MUST specify:
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- The primary underlying ticker (must be a real, liquid, yfinance-compatible symbol)
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- The expected percentage move in the UNDERLYING over {horizon_days} days
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- The expected direction: "up", "down", or "any" (for volatility plays)
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- A confidence score 0–100
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Return ONLY this valid JSON (no markdown, no explanation):
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{{
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"patterns": [
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{{
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"name": "Short descriptive pattern name",
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"description": "What you observed and why this matters",
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"category": "géopolitique|macro_monétaire|technique|commodités_supply|risk_off|flux_saisonnier|géo_économique|crédit_stress",
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"signal_direction": "bullish|bearish|volatility|neutral",
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"underlying": "TICKER",
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"strategy": "e.g. long put, long call, straddle, call spread",
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"expected_move_pct": 12.5,
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"expected_direction": "up|down|any",
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"horizon_days": {horizon_days},
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"confidence": 72,
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"rationale": "Concise explanation of the trade thesis at this historical moment"
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}}
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]
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}}"""
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try:
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resp = await client.chat.completions.create(
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model="gpt-4o",
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messages=[{"role": "user", "content": prompt}],
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temperature=0.2,
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response_format={"type": "json_object"},
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timeout=60,
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)
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raw = resp.choices[0].message.content or "{}"
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return json.loads(raw)
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except Exception as e:
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_log.error(f"[PatternLab] AI backtest failed: {e}")
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return {"patterns": [], "error": str(e)}
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# ── Outcome evaluator ──────────────────────────────────────────────────────────
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def evaluate_outcomes(run: dict) -> list:
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analysis_date = run["analysis_date"]
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horizon_days = int(run["horizon_days"])
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ai_result = json.loads(run.get("ai_result") or "{}")
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patterns = ai_result.get("patterns", [])
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dt = datetime.strptime(analysis_date, "%Y-%m-%d")
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eval_dt = dt + timedelta(days=horizon_days)
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# Don't evaluate if eval date is in the future
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if eval_dt.date() >= datetime.utcnow().date():
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return [{"error": f"Evaluation date {eval_dt.date()} is in the future"}]
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fetch_start = (dt - timedelta(days=5)).strftime("%Y-%m-%d")
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fetch_end = (eval_dt + timedelta(days=5)).strftime("%Y-%m-%d")
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outcomes = []
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for pat in patterns:
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ticker = pat.get("underlying", "")
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if not ticker:
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continue
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df = _fetch_ticker(ticker, fetch_start, fetch_end)
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if df is None or "Close" not in df.columns:
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outcomes.append({"pattern_name": pat.get("name"), "underlying": ticker, "error": "no data"})
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continue
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df.index = pd.to_datetime(df.index).tz_localize(None)
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entry_sub = df[df.index.normalize() <= dt]
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exit_sub = df[df.index.normalize() <= eval_dt]
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if entry_sub.empty or exit_sub.empty:
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outcomes.append({"pattern_name": pat.get("name"), "underlying": ticker, "error": "insufficient history"})
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continue
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entry_price = float(entry_sub["Close"].dropna().iloc[-1])
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exit_price = float(exit_sub["Close"].dropna().iloc[-1])
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actual_move = round((exit_price / entry_price - 1) * 100, 2)
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expected_dir = pat.get("expected_direction", "any")
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expected_move = float(pat.get("expected_move_pct", 0))
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threshold = max(expected_move * 0.5, 3.0) # at least 50% of expected, min 3%
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if expected_dir == "up":
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hit = actual_move >= threshold
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elif expected_dir == "down":
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hit = actual_move <= -threshold
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else: # any / volatility
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hit = abs(actual_move) >= threshold
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outcomes.append({
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"pattern_name": pat.get("name"),
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"underlying": ticker,
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"strategy": pat.get("strategy", ""),
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"signal_direction": pat.get("signal_direction", ""),
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"expected_direction": expected_dir,
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"expected_move_pct": expected_move,
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"actual_move_pct": actual_move,
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"entry_price": round(entry_price, 4),
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"exit_price": round(exit_price, 4),
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"entry_date": analysis_date,
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"exit_date": eval_dt.strftime("%Y-%m-%d"),
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"hit": hit,
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"confidence": pat.get("confidence", 0),
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})
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return outcomes
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