//@version=5
strategy("Bollinger Bands with Candlestick Strategy", overlay=true)
// Input parameters
length = input.int(20, title="Bollinger Bands Length")
src = input(close, title="Source")
mult = input.float(2.0, title="Bollinger Bands Multiplier")
riskPercentage = input.float(1.0, title="Risk per Trade (%)", minval=0.1,
maxval=100)
// Bollinger Bands calculation
basis = ta.sma(src, length)
dev = mult * ta.stdev(src, length)
upper = basis + dev
lower = basis - dev
// Plot Bollinger Bands
plot(basis, color=color.blue, title="Basis")
p1 = plot(upper, color=color.green, title="Upper Band")
p2 = plot(lower, color=color.red, title="Lower Band")
fill(p1, p2, color=color.new(color.green, 90))
// Candlestick patterns
bullishEngulfing = ta.crossover(close, open[1]) and close > open and open <
close[1]
bearishEngulfing = ta.crossunder(close, open[1]) and close < open and open >
close[1]
doji = math.abs(open - close) / (high - low) < 0.1
// Buy and sell signals
buySignal = bullishEngulfing and close < lower
sellSignal = bearishEngulfing and close > upper
// Execute trades
if (buySignal)
strategy.entry("Buy", strategy.long, comment="Buy Signal")
if (sellSignal)
strategy.entry("Sell", strategy.short, comment="Sell Signal")
// Risk management
capital = strategy.equity
riskAmount = capital * (riskPercentage / 100)
stopLossPct = input.float(1.0, title="Stop Loss (%)", minval=0.1, maxval=10)
takeProfitPct = input.float(2.0, title="Take Profit (%)", minval=0.1, maxval=10)
if (buySignal)
strategy.exit("Exit Buy", from_entry="Buy", stop=low * (1 - stopLossPct / 100),
limit=close * (1 + takeProfitPct / 100))
if (sellSignal)
strategy.exit("Exit Sell", from_entry="Sell", stop=high * (1 + stopLossPct /
100), limit=close * (1 - takeProfitPct / 100))
// Highlight candlestick patterns
bgcolor(bullishEngulfing ? color.new(color.green, 80) : na, title="Bullish
Engulfing Highlight")
bgcolor(bearishEngulfing ? color.new(color.red, 80) : na, title="Bearish Engulfing
Highlight")
bgcolor(doji ? color.new(color.orange, 80) : na, title="Doji Highlight")
