MA Crossover Scalper [4H]

//version=5
indicator("MA Crossover Scalper [4H]", overlay=false)

// Market Cap Filter (Volume as proxy)
volumeValid = volume >= 500000 and volume <= 4000000

// MA Crossover System
ma9 = ta.sma(close, 9)
ma21 = ta.sma(close, 21)
bullishCross = ta.crossover(ma9, ma21) and close > ma21
bearishCross = ta.crossunder(ma9, ma21) and close < ma21

// Volume Confirmation
volumeSpike = volume > ta.sma(volume, 20) * 1.3

// Final Signals
bullSignal = bullishCross and volumeSpike and volumeValid
bearSignal = bearishCross and volumeSpike and volumeValid

// Output for Screener
plot(bullSignal ? 1 : 0, "Bull MA Cross", color=color.green)
plot(bearSignal ? 1 : 0, "Bear MA Cross", color=color.red)