new strat needed
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# Quant-Rust-Strategist Memory
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## Architecture Overview
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- 50-symbol universe across 9 sectors (MAG7, semis, growth tech, healthcare, fintech, financials, industrials, consumer, energy)
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- Hybrid momentum + mean-reversion strategy via composite signal scoring in `generate_signal()`
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- Backtester restricts buys to top 8 momentum stocks; live mode also uses TOP_MOMENTUM_COUNT=8
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- 50-symbol universe across 9 sectors
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- Hybrid momentum + mean-reversion via composite signal scoring in `generate_signal()`
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- Backtester restricts buys to top 8 momentum stocks (TOP_MOMENTUM_COUNT=8)
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- Signal thresholds: StrongBuy>=6.0, Buy>=4.5, Sell<=-3.5, StrongSell<=-6.0
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## Critical Finding: Hourly Mode is Catastrophically Broken (2026-02-11)
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See [hourly-backtest-analysis-2026-02-11.md](hourly-backtest-analysis-2026-02-11.md) for full details.
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## Key Finding: Daily vs Hourly Parameter Sensitivity (2026-02-11)
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### Root Causes (Priority Order)
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1. **7x period scaling creates absurd indicator requirements**: RSI=98, MACD slow=182, EMA trend=350, momentum=441. min_bars()~450. Most indicators are NaN for majority of the data.
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2. **Drawdown halt at 10% is terminal for short backtests**: After -11.44% in 8 days, system sat in 100% cash for 2+ months (Nov 21 to Feb 11). This made the loss permanent.
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3. **Churning in opening days**: MU 3x, AMD 3x, GOOGL 3x in first 8 days. Cooldown helps but insufficient when all indicators trigger simultaneously on warmup.
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4. **IEX feed**: `feed=iex` gives thin volume, unreliable for hourly OHLCV.
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5. **Concentrated sector exposure**: MU, AMD, ASML all semis.
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### Daily Timeframe Optimization (Successful)
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- Reduced momentum_period 252->63, ema_trend 200->50 in IndicatorParams::daily()
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- Reduced warmup from 267 bars to ~70 bars
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- Result: Sharpe 0.53->0.86 (+62%), Win rate 40%->50%, PF 1.32->1.52
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### Previous Finding: Daily Churning (also 2026-02-11)
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See [backtest-analysis-2026-02-11.md](backtest-analysis-2026-02-11.md) for daily mode analysis.
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- 12 whipsaw events cost $7,128, 16 same-day round-trips at 0% win rate
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- Fixed by: cooldown timer (7 bars), ATR stop widened to 2.0x, buy threshold raised to 4.5
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### Hourly Timeframe: DO NOT CHANGE FROM BASELINE
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- Hourly IndicatorParams: momentum=63, ema_trend=200 (long lookbacks filter IEX noise)
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- Shorter periods (momentum=21, ema_trend=50): CATASTROPHIC -8% loss
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- ADX threshold lowered 25->20 (shared const, helps both timeframes)
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## Key Parameters (config.rs) - Current as of 2026-02-11
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- ATR Stop: 2.0x | ATR Trail: 1.5x distance, 1.5x activation
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- Max-loss cap: 4% | Position sizing: 1% risk / ATR_stop_pct, capped at 22%
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- Max 6 positions, max 2 per sector | Drawdown halt: 10% | Time exit: 30 bars
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- Cooldown: 7 bars | Slippage: 10bps
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- Hourly mode: ALL indicator periods multiplied by 7 (HOURS_PER_DAY=7)
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### Failed Experiments (avoid repeating)
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1. Tighter ATR stop (2.0x): too many stop-outs on hourly. Keep 2.5x
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2. Lower buy threshold (3.5): too many weak entries. Keep 4.5
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3. More positions (8): spreads capital too thin. Keep 5
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4. Higher risk per trade (1.0-1.2%): compounds losses. Keep 0.8%
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5. Wider trail (2.5x ATR): misses profit on hourly. Keep 1.5x
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6. Lower volume threshold (0.7): bad trades on IEX. Keep 0.8
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7. Lower cash reserve (3%): marginal, not worth risk. Keep 5%
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## Current Parameters (config.rs)
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- ATR Stop: 2.5x | Trail: 1.5x distance, 1.5x activation
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- Risk: 0.8%/trade, max 22% position, 5% cash reserve, 4% max loss
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- Max 5 positions, 2/sector | Drawdown halt: 10% (35 bars) | Time exit: 30
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- Cooldown: 7 bars | Ramp-up: 30 bars | Slippage: 10bps
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- Daily params: momentum=63, ema_trend=50
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- Hourly params: momentum=63, ema_trend=200
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- ADX: threshold=20, strong=35
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## Build Notes
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- `cargo build --release` compiles clean (only pre-existing dead_code warnings)
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- `cargo build --release` compiles clean (only dead_code warnings)
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- No tests exist
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- Backtests have stochastic variation from IEX data timing
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