EMA এবং বলিঞ্জার ব্যান্ড ব্রেকআউট কৌশল

/*backtest
start: 2024-05-01 00:00:00
end: 2024-05-31 23:59:59
period: 1h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy("Nifty Bank Strategy", overlay=true)

// Parameters
lengthEMA = 5
lengthBB = 20
multBB = 1.5
targetPoints = 1000

// Calculate 5-day EMA
ema5 = ta.ema(close, lengthEMA)

// Calculate Bollinger Bands (length 20, multiplier 1.5)
basis = ta.sma(close, lengthBB)
dev = multBB * ta.stdev(close, lengthBB)
upperBB = basis + dev
lowerBB = basis - dev

// Define strategy variables
var float entryPrice = na
var float stopLoss = na
var float targetPrice = na
var bool inTrade = false
var bool isLong = false
var float triggerHigh = na
var float triggerLow = na
var float triggerClose = na

if not inTrade
    // Short Entry Trigger Condition
    if low > ema5 and low > upperBB and high > upperBB
        triggerLow := low
        triggerHigh := high
        triggerClose := close
        label.new(bar_index, high, "Waiting for short trigger", color=color.yellow)
    // Long Entry Trigger Condition
    else if high < ema5 and high < lowerBB and low < lowerBB
        triggerHigh := high
        triggerLow := low
        triggerClose := close
        label.new(bar_index, low, "Waiting for long trigger", color=color.yellow)

// Check for Short Entry
if not inTrade and na(triggerClose) == false and close < triggerClose
    if low < triggerLow
        entryPrice := close
        stopLoss := triggerHigh
        targetPrice := entryPrice - targetPoints
        strategy.entry("Short", strategy.short)
        label.new(bar_index, high, "Short", color=color.red, style=label.style_label_down)
        inTrade := true
        isLong := false
        triggerLow := na
        triggerHigh := na
        triggerClose := na

// Check for Long Entry
if not inTrade and na(triggerClose) == false and close > triggerClose
    if high > triggerHigh
        entryPrice := close
        stopLoss := triggerLow
        targetPrice := entryPrice + targetPoints
        strategy.entry("Long", strategy.long)
        label.new(bar_index, low, "Long", color=color.green, style=label.style_label_up)
        inTrade := true
        isLong := true
        triggerLow := na
        triggerHigh := na
        triggerClose := na

// Manage Short Trade
if inTrade and not isLong
    if high >= stopLoss
        strategy.close("Short", comment="SL Hit")
        label.new(bar_index, high, "SL Hit", color=color.red, style=label.style_label_down)
        inTrade := false
    else if low <= targetPrice
        strategy.close("Short", comment="Target Hit")
        label.new(bar_index, low, "Target Hit", color=color.green, style=label.style_label_up)
        inTrade := false

// Manage Long Trade
if inTrade and isLong
    if low <= stopLoss
        strategy.close("Long", comment="SL Hit")
        label.new(bar_index, low, "SL Hit", color=color.red, style=label.style_label_down)
        inTrade := false
    else if high >= targetPrice
        strategy.close("Long", comment="Target Hit")
        label.new(bar_index, high, "Target Hit", color=color.green, style=label.style_label_up)
        inTrade := false

// Plotting
plot(ema5, color=color.orange, title="5-day EMA")
plot(upperBB, color=color.red, title="Upper Bollinger Band")
plot(lowerBB, color=color.purple, title="Lower Bollinger Band")

// Plot trade entry and exit points
plotshape(series=inTrade and isLong ? entryPrice : na, location=location.belowbar, color=color.green, style=shape.labelup, title="Buy Signal")
plotshape(series=inTrade and not isLong ? entryPrice : na, location=location.abovebar, color=color.red, style=shape.labeldown, title="Sell Signal")