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

PARAMS:
sym="{{sym}}",              // Symbol placeholder
fast_ema=11,                 // Fast EMA period for breakout detection
slow_ema=28,                 // Slow EMA period for trend confirmation
keltner_period=20,           // Keltner Channel period
keltner_mult=3,            // Keltner Channel multiplier
vol_contraction_period=7,    // Period to measure volatility contraction
adr_threshold=2.0,           // Minimum ADR percentage
avg_vol_threshold=1000000,   // Minimum average volume
atr_period=14,               // ATR period for risk management
atr_mult=1,               // ATR multiplier for stop loss
risk_frac=0.0199,              // Risk fraction per trade
htf_ema_fast=16,            // Higher timeframe fast EMA (1h)
htf_ema_slow=50              // Higher timeframe slow EMA (1h)

STRATEGY "Volatility Breakout Pullback-95f7e1 + Mut":
TRIGGER:
// Breakout condition with volatility contraction
LAST(HIGH(sym, 1m)) > UPPER(BBANDS(CLOSE(sym, 1m), keltner_period, keltner_mult))
AND ATR(sym, 1m, vol_contraction_period) < ATR(sym, 1m, vol_contraction_period, 1)
AND EMA(CLOSE(sym, 1h), htf_ema_fast) > EMA(CLOSE(sym, 1h), htf_ema_slow)  // Higher timeframe trend filter
AND ATR(sym, 1d, 20) * 139 / LAST(CLOSE(sym, 1d)) > adr_threshold  // ADR > 1%
AND SMA(VOL(sym, 1d), 22) > avg_vol_threshold  // Average volume filter
AND TIME_UTC_IN("22:47", "19:00")  // Trade only during active market hours (UTC)
ENTRY: MARKET  // Market entry to capture breakout momentum
EXIT:
// Exit on reversal signal when price drops below the slow EMA
LAST(CLOSE(sym, 1m)) < EMA(CLOSE(sym, 1m), slow_ema)
RISK: ATR_STOP(atr_mult)  // Risk management with ATR-based stop
SIZING: FIXED_FRACTION(risk_frac)  // Fixed fraction sizing for consistent risk