1. বর্গক্ষেত্র
2. ডাবল বোলিংজার ব্যান্ড ব্রেকআউট কৌশল

ডাবল বোলিংজার ব্যান্ড ব্রেকআউট কৌশল

লেখক:চাওঝাং, তারিখঃ 2024-01-03 12:06:31
ট্যাগঃ

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/*backtest
start: 2022-12-27 00:00:00
end: 2024-01-02 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/

// From "Bitcoin Trading Strategies: Algorithmic Trading Strategies For Bitcoin And Cryptocurrency That Work" by David Hanson.

// "Double Bolinger Band Scalping System 
// Recommended Timeframe: 1 minute or 5 minute 

// Required Indicators: 
// - RSI with a length of 14 (default settings) 
// - Bolinger band #1 settings: Length = 50, stDev = 1 Hide the basis/middle line (basis line not needed for this strategy) 
// Note: This is the slower bolinger band in the directions 
// - Bolinger band #2 settings: Length 20, stDev = 1 Hide the basis/middle line (basis line not needed for this strategy) 
// Note: This is the faster bolinger band in the directions 

// Enter Long/Buy Trade When: 
// - RSI is above the level 50 
// - A candle closes above the top of the faster bolinger band 
// Enter a long when a candle then closes above the top of the slower bolinger band, and price is above the top of both bands 
// Place a stop loss under the low of the entry candle Example of a long trade using this strategy 
// Exit Long Trade When: A candle closes below the top band of the fast bolinger band 

// Enter Short/Sell Trade When: 
// - RSI is below the level 50 
// - A candle closes below the bottom of the faster bolinger band 
// Enter a short when a candle then closes below the bottom of the slower bolinger band, and price is below both bands 
// Place a stop loss above the high of the entry candle Example of a short trade using this strategy 
// Exit Short Trade When: Price closes inside the bottom of the faster bolinger band"

// © tweakerID

//@version=4
strategy("Double Bollinger Strategy", 
     overlay=true, 
     default_qty_type=strategy.percent_of_equity, 
     default_qty_value=100, 
     initial_capital=10000, 
     commission_value=0.04, 
     calc_on_every_tick=false, 
     slippage=0)

direction = input(0, title = "Strategy Direction", type=input.integer, minval=-1, maxval=1)
strategy.risk.allow_entry_in(direction == 0 ? strategy.direction.all : (direction < 0 ? strategy.direction.short : strategy.direction.long))

/////////////////////// STRATEGY INPUTS ////////////////////////////////////////
title1=input(true, "-----------------Strategy Inputs-------------------")  

i_RSI=input(14, title="RSI Length")
lengthS = input(45, minval=1, title="Slow BB Band Length")
lengthF = input(31, minval=1, title="Fast BB Band Length")

/////////////////////// BACKTESTER /////////////////////////////////////////////
title2=input(true, "-----------------General Inputs-------------------")  

// Backtester General Inputs
i_SL=input(true, title="Use Stop Loss and Take Profit")
i_SLType=input(defval="Strategy Stop", title="Type Of Stop", options=["Strategy Stop", "Swing Lo/Hi", "ATR Stop"])
i_SPL=input(defval=10, title="Swing Point Lookback")
i_PercIncrement=input(defval=1, step=.1, title="Swing Point SL Perc Increment")*0.01
i_ATR = input(14, title="ATR Length")
i_ATRMult = input(5, step=.1, title="ATR Multiple")
i_TPRRR = input(2, step=.1, title="Take Profit Risk Reward Ratio")
TS=input(false, title="Trailing Stop")

// Bought and Sold Boolean Signal
bought = strategy.position_size > strategy.position_size[1] 
 or strategy.position_size < strategy.position_size[1]

// Price Action Stop and Take Profit
LL=(lowest(i_SPL))*(1-i_PercIncrement)
HH=(highest(i_SPL))*(1+i_PercIncrement)
LL_price = valuewhen(bought, LL, 0)
HH_price = valuewhen(bought, HH, 0)
entry_LL_price = strategy.position_size > 0 ? LL_price : na 
entry_HH_price = strategy.position_size < 0 ? HH_price : na 
tp=strategy.position_avg_price + (strategy.position_avg_price - entry_LL_price)*i_TPRRR
stp=strategy.position_avg_price - (entry_HH_price - strategy.position_avg_price)*i_TPRRR

// ATR Stop
ATR=atr(i_ATR)*i_ATRMult
ATRLong = ohlc4 - ATR
ATRShort = ohlc4 + ATR
ATRLongStop = valuewhen(bought, ATRLong, 0)
ATRShortStop = valuewhen(bought, ATRShort, 0)
LongSL_ATR_price = strategy.position_size > 0 ? ATRLongStop : na 
ShortSL_ATR_price = strategy.position_size < 0 ? ATRShortStop : na 
ATRtp=strategy.position_avg_price + (strategy.position_avg_price - LongSL_ATR_price)*i_TPRRR
ATRstp=strategy.position_avg_price - (ShortSL_ATR_price - strategy.position_avg_price)*i_TPRRR


// Strategy Stop
float LongStop = valuewhen(bought,low[1],0)*(1-i_PercIncrement)
float ShortStop = valuewhen(bought,high[1],0)*(1+i_PercIncrement)
float StratTP = na
float StratSTP = na

/////////////////////// STRATEGY LOGIC /////////////////////////////////////////

//RSI
RSI=rsi(close, i_RSI)

//BOLL1
[middleS, upperS, lowerS] = bb(close, lengthS, 1)
p1 = plot(upperS, "Slow BB Upper Band", color=color.teal)
p2 = plot(lowerS, "Slow BB Lower Band", color=color.teal)
fill(p1, p2, title = "Slow BB Background", color=color.blue, transp=95)

//BOLL2
[middleF, upperF, lowerF] = bb(close, lengthF, 1)
p1F = plot(upperF, "Fast BB Upper Band", color=color.gray)
p2F = plot(lowerF, "Fast BB Lower Band", color=color.gray)
fill(p1F, p2F, title = "Fast BB Background", color=color.white, transp=95)


BUY = bar_index > 40 and (RSI > 50) and (close > upperF) and crossover(close, upperS)
SELL = bar_index > 40 and (RSI < 50) and (close < lowerF) and crossunder(close, lowerS) 

longexit=close < upperF
shortexit=close > lowerF

//Trading Inputs
i_strategyClose=input(true, title="Use Strategy Close Logic")
DPR=input(true, "Allow Direct Position Reverse")
reverse=input(false, "Reverse Trades")

// Entries
if reverse
    if not DPR
        strategy.entry("long", strategy.long, when=SELL and strategy.position_size == 0)
        strategy.entry("short", strategy.short, when=BUY and strategy.position_size == 0)
    else     
        strategy.entry("long", strategy.long, when=SELL)
        strategy.entry("short", strategy.short, when=BUY)
else
    if not DPR 
        strategy.entry("long", strategy.long, when=BUY and strategy.position_size == 0)
        strategy.entry("short", strategy.short, when=SELL and strategy.position_size == 0)
    else
        strategy.entry("long", strategy.long, when=BUY)
        strategy.entry("short", strategy.short, when=SELL)

if i_strategyClose
    strategy.close("long", when=longexit)
    strategy.close("short", when=shortexit)
    


SL= i_SLType == "Swing Lo/Hi" ? entry_LL_price : i_SLType == "ATR Stop" ? LongSL_ATR_price : LongStop
SSL= i_SLType == "Swing Lo/Hi" ? entry_HH_price : i_SLType == "ATR Stop" ? ShortSL_ATR_price : ShortStop
TP= i_SLType == "Swing Lo/Hi" ? tp : i_SLType == "ATR Stop" ? ATRtp : StratTP
STP= i_SLType == "Swing Lo/Hi" ? stp : i_SLType == "ATR Stop" ? ATRstp : StratSTP

//TrailingStop
dif=(valuewhen(strategy.position_size>0 and strategy.position_size[1]<=0, high,0))
 -strategy.position_avg_price
trailOffset     = strategy.position_avg_price - SL
var tstop = float(na)
if strategy.position_size > 0
    tstop := high- trailOffset - dif
    if tstop<tstop[1]
        tstop:=tstop[1]
else
    tstop := na
StrailOffset     = SSL - strategy.position_avg_price
var Ststop = float(na)
Sdif=strategy.position_avg_price-(valuewhen(strategy.position_size<0 
 and strategy.position_size[1]>=0, low,0))
if strategy.position_size < 0
    Ststop := low+ StrailOffset + Sdif
    if Ststop>Ststop[1]
        Ststop:=Ststop[1]
else
    Ststop := na

strategy.exit("TP & SL", "long", limit=TP, stop=TS? tstop : SL, when=i_SL)
strategy.exit("TP & SL", "short", limit=STP, stop=TS? Ststop : SSL, when=i_SL)

/////////////////////// PLOTS //////////////////////////////////////////////////


plot(i_SL and strategy.position_size > 0 and not TS ? SL : i_SL and strategy.position_size > 0 and TS ? tstop : na , title='SL', style=plot.style_cross, color=color.red)
plot(i_SL and strategy.position_size < 0 and not TS ? SSL : i_SL and strategy.position_size < 0 and TS ? Ststop : na , title='SSL', style=plot.style_cross, color=color.red)
plot(i_SL and strategy.position_size > 0 ? TP : na, title='TP', style=plot.style_cross, color=color.green)
plot(i_SL and strategy.position_size < 0 ? STP : na, title='STP', style=plot.style_cross, color=color.green)
// Draw price action setup arrows
plotshape(BUY ? 1 : na, style=shape.triangleup, location=location.belowbar, 
 color=color.green, title="Bullish Setup", size=size.auto)
plotshape(SELL ? 1 : na, style=shape.triangledown, location=location.abovebar, 
 color=color.red, title="Bearish Setup", size=size.auto)

---

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