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Strategy · Pine Script v4 · On the chart

Big Bar Strategy

by hasnocool· code credited to tweakerID

Big Bar Strategy identifies unusually large candles relative to a moving average of recent bar body sizes.

View on GitHub

GitHub stars106on the repository
Pine versionv4older, still runs
Lines of code131
Settings18inputs
LicenceGPL-3.0
Last update2 years ago18 Sep 2024

Add It to Your TradingView Chart

  1. 1Copy the scriptPress Copy script above, or the copy button on the code below.
  2. 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
  3. 3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
  4. 4Add it to the chartPress Add to chart. The trades and results appear in the Strategy Tester tab; adjust the settings with the gear icon.

Source Code

131 lines of Pine Script v4 from Big Bar Strategy.pine, published under GPL-3.0. Keep the author's credit and licence lines when you reuse it.

Big Bar Strategy.pine 
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © tweakerID
// This strategy detects and uses big bars to enter a position. When the Big Bar 
// is bearish (red candle) the position will be long and viceversa
// for short positions. The stop loss (optional) is placed on the low of the 
// candle used to trigger the position and user inputs allow you to modify the
// size of the SL. Take profit is placed on a reward ratio of 1. User can also modify 
// the size of the bar body used to determine if we have a real Big Bar and
// filter out Doji bars. Big Bars are determined relative to the previous X period size, 
// which can also be modified, as well as the required size of the Big Bar relative to this period average.
//@version=4
strategy("Big Bar 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-------------------")  
barsizeThreshold=input(.5, step=.1, minval=.5, maxval=.9, title="Bar Body Size")
period=input(10, title="Period for bar size average")
mult=input(2, step=.2, title="Big Size Avg Mult to determine Big Bar")
i_Confirmation=input(true, title="Enter trade after confirmation bar")
/////////////////////// BACKTESTER /////////////////////////////////////////////
title2=input(true, "-----------------General Inputs-------------------")  
// Backtester General Inputs
i_SL=input(true, title="Use Stop Loss and Take Profit")
i_SLType=input(defval="ATR 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=3, step=.1, title="Swing Point SL Perc Increment")*0.01
i_ATR = input(14, title="ATR Length")
i_ATRMult = input(4, step=.1, title="ATR Multiple")
i_TPRRR = input(1, 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 LOGIC /////////////////////////////////////////
barsize=high-low
barbodysize=close>open?(open-close)*-1:(open-close)
barsizeavg=sum(barsize, period)/period
bigbar=barsize >= barsizeavg*mult and barbodysize>barsize*barsizeThreshold
barcolor(bigbar ? color.white : na)
// Strategy Stop
barsizemult=input(1, step=.1, title="Strategy SL/TP Mult")
float LongStop = strategy.position_avg_price - (valuewhen(bought,barsize,0)*barsizemult)
float ShortStop = strategy.position_avg_price + (valuewhen(bought,barsize,0)*barsizemult)
float StratTP = strategy.position_avg_price + (valuewhen(bought,barsize,0)*barsizemult)
float StratSTP = strategy.position_avg_price - (valuewhen(bought,barsize,0)*barsizemult)
BUY=i_Confirmation ? close[1] < open[1] and bigbar[1] and close > open : close < open and bigbar
SELL=i_Confirmation ? close[1] > open[1] and bigbar[1] and close < open : close > open and bigbar
//Trading Inputs
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)
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)
 
Expand (161 lines)

Overview

Big Bar Strategy executes contrarian trades by opening long positions following a large bearish bar and short positions after a large bullish bar, with an optional confirmation bar requirement. Trailing stops and take-profit targets are calculated based on a configurable risk-reward ratio and selected stop-loss type, including ATR and Swing High/Low options. Plots entry and exit points directly on the price chart.

Details

Published by

hasnocool on GitHub

Code credit

tweakerID, as written in the script's header

Type

Strategy, Pine Script v4

Draws

On the price chart

Category

Mean reversion, Volatility & bands, Candlestick patterns

Markets

Crypto

Timeframes

Any timeframe

Risk Notes

No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.

File

Big Bar Strategy.pine

Repository

github.com/hasnocool/tradingview-pine-scripts. See its other scripts in the library

Topics

analysisbtcusdtcryptocurrencydatapandaspythonsimulationtradingtradingview

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

SettingTypeDefaultVariable
Strategy Directionint0direction
-----------------Strategy Inputs-------------------booltruetitle1
Bar Body Sizefloat.5barsizeThreshold
Period for bar size averageint10period
Big Size Avg Mult to determine Big Barint2mult
Enter trade after confirmation barbooltruei_Confirmation
-----------------General Inputs-------------------booltruetitle2
Use Stop Loss and Take Profitbooltruei_SL
Type Of StopstringATR Stopi_SLType
Swing Point Lookbackint10i_SPL
Swing Point SL Perc Incrementint3i_PercIncrement
ATR Lengthint14i_ATR
Show all 18 settings
SettingTypeDefaultVariable
ATR Multipleint4i_ATRMult
Take Profit Risk Reward Ratioint1i_TPRRR
Trailing StopboolfalseTS
Strategy SL/TP Multint1barsizemult
Allow Direct Position ReversebooltrueDPR
Reverse Tradesboolfalsereverse
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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