Alain parf

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Hammer signals only valid for longs above EMA200.

Inverted hammer signals only valid for shorts below EMA200.

EMA200 is plotted as an orange line.

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Pine Script Source

//@version=6
strategy("Hammer & Inverted Hammer Strategy (ATR SL + RRR TP + EMA200 Filter)", overlay=true,
     initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=5)

// === Inputs ===
minWickMultiplier    = input.float(2.0, "Min long wick ≥ body ×", step=0.1)
maxOppWickMultiplier = input.float(0.3, "Max opposite wick ≤ body ×", step=0.05)
maxBodyToRangePct    = input.float(0.35, "Max body ≤ range ×", step=0.01)

atrLength   = input.int(14, "ATR Length")
atrMult     = input.float(1.5, "ATR Multiplier (for SL)", step=0.1)
rrr         = input.float(2.0, "Risk/Reward Ratio", step=0.1)
emaLength   = input.int(200, "EMA Length")

// === Candle parts ===
body   = math.abs(close - open)
upperW = high - math.max(open, close)
lowerW = math.min(open, close) - low
cRange = high - low
validRange = cRange > syminfo.mintick * 10

// === Hammer logic (long lower wick) ===
hammer_small_body   = validRange and body <= cRange * maxBodyToRangePct
hammer_long_lower   = lowerW >= body * minWickMultiplier
hammer_small_upper  = upperW <= body * maxOppWickMultiplier
isHammer            = hammer_small_body and hammer_long_lower and hammer_small_upper

// === Inverted Hammer logic (long upper wick) ===
inv_small_body      = validRange and body <= cRange * maxBodyToRangePct
inv_long_upper      = upperW >= body * minWickMultiplier
inv_small_lower     = lowerW <= body * maxOppWickMultiplier
isInvHammer         = inv_small_body and inv_long_upper and inv_small_lower

// === ATR for SL/TP ===
atr = ta.atr(atrLength)

// === EMA Filter ===
ema200 = ta.ema(close, emaLength)

// === Trading Logic ===
// Long only if above EMA200
if isHammer and close > ema200
    longSL = close - atr * atrMult
    longTP = close + (close - longSL) * rrr
    strategy.entry("Long", strategy.long)
    strategy.exit("Long Exit", "Long", stop=longSL, limit=longTP)

// Short only if below EMA200
if isInvHammer and close < ema200
    shortSL = close + atr * atrMult
    shortTP = close - (shortSL - close) * rrr
    strategy.entry("Short", strategy.short)
    strategy.exit("Short Exit", "Short", stop=shortSL, limit=shortTP)

// === Visualization ===
plotshape(isHammer and close > ema200, title="Hammer", location=location.belowbar,
     style=shape.triangleup, size=size.tiny, color=color.green, text="H")

plotshape(isInvHammer and close < ema200, title="Inverted Hammer", location=location.abovebar,
     style=shape.triangledown, size=size.tiny, color=color.red, text="IH")

plot(ema200, "EMA200", color=color.orange, linewidth=2)