Fibonacci Pullback Strategy

// This Pine Script™ code is subject to the terms of the Mozilla Public License 2.0
// © TradingTools

//@version=5
strategy("Fibonacci Pullback Strategy", overlay=true, default_qty_type=strategy.percent_of_equity, default_qty_value=100)

// ─── Inputs ───
swingLength     = input.int(20, "Swing Detection Length", group="Fibonacci")
fib382          = input.float(0.382, "Fib 38.2%", group="Fibonacci")
fib500          = input.float(0.500, "Fib 50.0%", group="Fibonacci")
fib618          = input.float(0.618, "Fib 61.8%", group="Fibonacci")
fibBuffer       = input.float(0.5, "Fib Zone Buffer (%)", step=0.1, group="Fibonacci")
emaTrend        = input.int(50, "Trend EMA Length", group="Filters")
rsiLength       = input.int(14, "RSI Length", group="Filters")
rsiOB           = input.float(70, "RSI Overbought", group="Filters")
rsiOS           = input.float(30, "RSI Oversold", group="Filters")
atrLength       = input.int(14, "ATR Length", group="Risk Management")
atrMult         = input.float(2.0, "ATR Multiplier for SL", step=0.1, group="Risk Management")
rrRatio         = input.float(2.5, "Risk:Reward Ratio", step=0.1, group="Risk Management")

// ─── Swing High/Low Detection ───
swingHigh = ta.highest(high, swingLength)
swingLow  = ta.lowest(low, swingLength)

// ─── Fibonacci Levels ───
range_hl = swingHigh - swingLow

// Uptrend fibs (retracement from high)
fib382_up = swingHigh - range_hl * fib382
fib500_up = swingHigh - range_hl * fib500
fib618_up = swingHigh - range_hl * fib618

// Downtrend fibs (retracement from low)
fib382_dn = swingLow + range_hl * fib382
fib500_dn = swingLow + range_hl * fib500
fib618_dn = swingLow + range_hl * fib618

// ─── Trend & RSI ───
emaVal  = ta.ema(close, emaTrend)
rsiVal  = ta.rsi(close, rsiLength)
atrVal  = ta.atr(atrLength)

bullTrend = close > emaVal
bearTrend = close < emaVal

// ─── Fib Zone Check ───
bufferAmt = close * (fibBuffer / 100)

// In uptrend: price pulling back INTO the golden zone (38.2–61.8)
inBullFibZone = low <= (fib382_up + bufferAmt) and low >= (fib618_up - bufferAmt)
// In downtrend: price pulling back UP into the golden zone
inBearFibZone = high >= (fib382_dn - bufferAmt) and high <= (fib618_dn + bufferAmt)

// ─── Entry Conditions ───
// Long: Uptrend + price in fib pullback zone + bullish candle + RSI not overbought
bullishCandle  = close > open
bearishCandle  = close < open

longCondition  = bullTrend and inBullFibZone and bullishCandle and rsiVal < rsiOB and rsiVal > rsiOS
shortCondition = bearTrend and inBearFibZone and bearishCandle and rsiVal > rsiOS and rsiVal < rsiOB

// ─── Execute Trades ───
if longCondition and strategy.position_size == 0
    sl = close - atrVal * atrMult
    tp = close + (close - sl) * rrRatio
    strategy.entry("Fib Long", strategy.long)
    strategy.exit("Fib Long Exit", "Fib Long", stop=sl, limit=tp)

if shortCondition and strategy.position_size == 0
    sl = close + atrVal * atrMult
    tp = close - (sl - close) * rrRatio
    strategy.entry("Fib Short", strategy.short)
    strategy.exit("Fib Short Exit", "Fib Short", stop=sl, limit=tp)

// ─── Plotting ───
plot(emaVal, "Trend EMA", color=color.new(color.white, 30), linewidth=2)

plot(bullTrend ? fib382_up : na, "38.2% (Bull)", color=color.new(color.green, 40), style=plot.style_linebr)
plot(bullTrend ? fib500_up : na, "50.0% (Bull)", color=color.new(color.yellow, 40), style=plot.style_linebr)
plot(bullTrend ? fib618_up : na, "61.8% (Bull)", color=color.new(color.orange, 40), style=plot.style_linebr)

plot(bearTrend ? fib382_dn : na, "38.2% (Bear)", color=color.new(color.red, 40), style=plot.style_linebr)
plot(bearTrend ? fib500_dn : na, "50.0% (Bear)", color=color.new(color.yellow, 40), style=plot.style_linebr)
plot(bearTrend ? fib618_dn : na, "61.8% (Bear)", color=color.new(color.orange, 40), style=plot.style_linebr)

plotshape(longCondition, title="Fib Long", location=location.belowbar, style=shape.arrowup, color=color.green, size=size.small, text="FIB")
plotshape(shortCondition, title="Fib Short", location=location.abovebar, style=shape.arrowdown, color=color.red, size=size.small, text="FIB")

// ─── Alerts ───
alertcondition(longCondition, title="Fib Pullback Long", message="Fibonacci: Bullish pullback entry in golden zone")
alertcondition(shortCondition, title="Fib Pullback Short", message="Fibonacci: Bearish pullback entry in golden zone")