CONTEXT:
UNIVERSE: SP500
BASE_TZ: America/New_York
CAPITAL: 1_000_000

PARAMS:
sym="{{sym}}",
fast_ema=11,          // Fast EMA period for short-term trend
slow_ema=30,          // Slow EMA period for longer-term trend
vol_period=21,        // Period for volume pace calculation
atr_period=15,        // Period for ATR calculation
atr_mult=3,         // Multiplier for ATR-based trailing stop
risk_frac=0.02,       // Risk fraction for position sizing
min_price=4,        // Minimum price filter
adr_threshold=0.02,   // Minimum ADR threshold (1%)
avg_vol_threshold=1000000,  // Minimum average volume
sector_ema_fast=10,   // Fast EMA for sector ETF trend
sector_ema_slow=26    // Slow EMA for sector ETF trend

STRATEGY "Unstable Basket - Stellar Revert Drift-00e7d1 + Mut-6cb7bd + Mut":
TRIGGER:
// Price and volume filters for large-cap, liquid stocks
LAST(CLOSE(sym, 1m)) > min_price
AND ATR(sym, 1d, 9) / LAST(CLOSE(sym, 1d)) > adr_threshold
AND SMA(VOL(sym, 1d), vol_period) > avg_vol_threshold
// Time window: first 174 minutes of session (assuming 10:23-11:00 NY time, adjust to UTC)
AND TIME_UTC_IN("13:37", "15:00")
// Volume pace exhaustion signal on 1m
AND VOL_PACE(sym, 1d, vol_period) > 3
// Short-term reversal signal: price below fast EMA but above slow EMA (mean reversion zone)
AND LAST(CLOSE(sym, 1m)) < EMA(CLOSE(sym, 1m), fast_ema)
AND LAST(CLOSE(sym, 1m)) > EMA(CLOSE(sym, 1m), slow_ema)
// Higher timeframe confirmation (5m trend alignment)
AND EMA(CLOSE(sym, 5m), fast_ema) > EMA(CLOSE(sym, 5m), slow_ema)
ENTRY: MARKET  // Market entry for immediacy on short-term reversal signal
EXIT:
CROSSUNDER(CLOSE(sym,1m), EMA(CLOSE(sym,1m),17)) OR (TIME_UTC_IN(19,21) AND CROSSOVER(CLOSE(sym,1m), EMA(CLOSE(sym,1m),17)))
RISK: TRAIL_ATR(atr_period, atr_mult)  // Trailing stop based on ATR for dynamic risk control
SIZING: FIXED_FRACTION(risk_frac)  // Fixed fraction sizing for consistent risk exposure