Backtester v5: Free TradingView Strategy (Pine Script)

Add It to Your TradingView Chart

1Copy the scriptPress Copy script above, or the copy button on the code below.
2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
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

120 lines of Pine Script v5 from Backtest Engine.pine, published under GPL-3.0. Keep the author's credit and licence lines when you reuse it.

Backtest Engine.pine

// Backtester v5 © gjfsdrtytru {
// On lines 31-37, use the variable longCondition to trigger your long entry, closeLong to trigger close long, etc.
// TP/SL are built into the script. There are also some inputs for bot commands in the settings UI if you want to set up a trading bot.
// No user input is required beyond line 49. Just define your strategy and let the engine do the rest!
// Thanks to Wunderbit Trading who helped in the making of this script with their open-source code and tutorials.
//@version=5
strategy(
  title                 = "Backtester v5", 
  shorttitle            = "Backtest",
  overlay               = true,
  calc_on_order_fills   = true,
  default_qty_type      = strategy.percent_of_equity,
  default_qty_value     = 100,
  initial_capital       = 10000) // }
// Start code here...
sma1 = ta.sma(close,50)
sma2 = ta.sma(close,200)
plot(sma1,"Fast MA",color.blue)
plot(sma2,"Slow MA",color.red)
// Define Entry/Close Conditions {
i_long  = input(true,"Long orders",group="Orders",tooltip="Toogle on/off long orders")
i_short = input(true,"Short orders",group="Orders",tooltip="Toogle on/off short orders")
longCondition   = false
closeLong       = false
shortCondition  = false
closeShort      = false
if i_long
    longCondition   := ta.crossover(sma1,sma2)      // Enter your conditions here
    closeLong       := ta.crossunder(sma1,sma2)     // Enter your conditions here
if i_short
    shortCondition  := ta.crossunder(sma1,sma2)     // Enter your conditions here
    closeShort      := ta.crossover(sma1,sma2)      // Enter your conditions here
// }
// Bot Web-link Alert - {{strategy.order.comment}} {
// LONG COMMENTS
botLong         = input("Long Entry",   title="Entry Long Command", group="Bot Commands",tooltip="Long entry bot command")
botLongClose    = input("Long Closed",  title="Exit Long Command",  group="Bot Commands",tooltip="Long close bot command")
// SHORT COMMENTS
botShort        = input("Short Entry",  title="Entry Short Command",group="Bot Commands",tooltip="Short entry bot command")
botShortClose   = input("Short Closed", title="Exit Short Command", group="Bot Commands",tooltip="Short close bot command")
// }
// BACKTEST ENGINE [NO USER INPUT REQUIRED] ////////////////// {
// Time period {
testStartYear   = input.int(2018,   title="Backtest Start Year",    minval=2010,maxval=2100,group="Backtest Period")
testStartMonth  = input.int(1,      title="Backtest Start Month",   minval=1,   maxval=12,  group="Backtest Period")
testStartDay    = input.int(1,      title="Backtest Start Day",     minval=1,   maxval=31,  group="Backtest Period")
testPeriodLen   = input.int(9999,   title="Backtest Period (days)", minval=1,               group="Backtest Period",tooltip="Days until strategy ends") * 86400000 // convert days into UNIX time
testPeriodStart = timestamp(testStartYear,testStartMonth,testStartDay,0,0)
testPeriodStop  = testPeriodStart + testPeriodLen
testPeriod() =>
    time >= testPeriodStart and time <= testPeriodStop ? true : false
// }
// Calculate TP/SL {
// User inputs
i_longTP     = input.float(title="Long Take Profit (%)" ,minval=0.0, step=1, defval=0,group="Take Profit/Stop Loss") * 0.01
i_longSL     = input.float(title="Long Stop Loss (%)"   ,minval=0.0, step=1, defval=0,group="Take Profit/Stop Loss") * 0.01
i_shortTP    = input.float(title="Short Take Profit (%)",minval=0.0, step=1, defval=0,group="Take Profit/Stop Loss") * 0.01
i_shortSL    = input.float(title="Short Stop Loss (%)"  ,minval=0.0, step=1, defval=0,group="Take Profit/Stop Loss") * 0.01
// 0% TP/SL = OFF (a value of 0 turns off TP/SL feature)
longTP     = i_longTP  == 0 ? 1000 : i_longTP
longSL     = i_longSL  == 0 ? 1    : i_longSL
shortTP    = i_shortTP == 0 ? 1    : i_shortTP
shortSL    = i_shortSL == 0 ? 1000 : i_shortSL
// Determine TP/SL price based on percentage given
longTP      := strategy.position_avg_price * (1 + longTP)
longSL      := strategy.position_avg_price * (1 - longSL)
shortTP     := strategy.position_avg_price * (1 - shortTP)
shortSL     := strategy.position_avg_price * (1 + shortSL) 
// }
// Anti-overlap {
isEntry_Long    = false
isEntry_Long    := nz(isEntry_Long[1], false)
isExit_Long     = false
isExit_Long     := nz(isExit_Long[1], false)
isEntry_Short   = false
isEntry_Short   := nz(isEntry_Short[1], false)
isExit_Short    = false
isExit_Short    := nz(isExit_Short[1], false)
entryLong       = not isEntry_Long and longCondition
exitLong        = not isExit_Long and closeLong
entryShort      = not isEntry_Short and  shortCondition
exitShort       = not isExit_Short and closeShort
if (entryLong)
    isEntry_Long := true
    isExit_Long := false
if (exitLong)
    isEntry_Long := false
    isExit_Long := true
if (entryShort)
    isEntry_Short := true
    isExit_Short := false
if (exitShort)
    isEntry_Short := false
    isExit_Short := true
// }
// Order Execution {
// Entries
if testPeriod()
    strategy.entry("Long" ,strategy.long ,when=entryLong ,comment=botLong)
    strategy.entry("Short",strategy.short,when=entryShort,comment=botShort)
// TP/SL
if (strategy.position_size > 0) 
    strategy.exit(from_entry="Long", id="Long SL/TP",   qty_percent=100,limit=longTP, stop=longSL) 
    strategy.close(id       ="Long", when=exitLong,     qty_percent=100,comment=botLongClose)
if (strategy.position_size < 0)
    strategy.exit(from_entry="Short", id="Short TP/SL", qty_percent=100,limit=shortTP,stop=shortSL)
    strategy.close(id       ="Short", when=exitShort,   qty_percent=100,comment=botShortClose)
// }
// Draw Entry, TP and SL Levels {
// Long positions
plot(strategy.position_size > 0 ? strategy.position_avg_price   : na, style=plot.style_linebr, color=color.blue,    title="Long Entry")
plot(strategy.position_size > 0 ? i_longTP    == 0 ? na : longTP  : na, style=plot.style_linebr, color=color.green,   title="Long TP")
plot(strategy.position_size > 0 ? i_longSL    == 0 ? na : longSL  : na, style=plot.style_linebr, color=color.red,     title="Long SL")
// Short positions
plot(strategy.position_size < 0 ? strategy.position_avg_price   : na, style=plot.style_linebr, color=color.blue,    title="Short Entry")
plot(strategy.position_size < 0 ? i_shortTP   == 0 ? na : shortTP : na, style=plot.style_linebr, color=color.green,   title="Short TP")
plot(strategy.position_size < 0 ? i_shortSL   == 0 ? na : shortSL : na, style=plot.style_linebr, color=color.red,     title="Short SL")
// }
// }
Expand (130 lines)

Overview

Backtester v5 opens a long when the fast average crosses above the slow average and closes that long on the opposite cross; shorts use the reverse crosses. Separate toggles enable or disable long and short orders. Percentage take-profit and stop-loss inputs default to zero, so no protective exit is active until the user sets them. A start date and day count limit the test window, and comment strings can label bot alerts. Orders use the full account equity.

50 and 200 period SMA plots
SMA crossover long and short entries
Toggleable long and short orders
Percent take profit and stop loss
Backtest date window and bot comments

Details

Published by

hasnocool on GitHub

Type

Strategy, Pine Script v5

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

The strategy enters trades without a stop loss

File

Backtest Engine.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.

Setting	Type	Default	Variable
Long orders	`bool`	`true`	`i_long`
Short orders	`bool`	`true`	`i_short`
Entry Long Command	`string`	`Long Entry`	`botLong`
Exit Long Command	`string`	`Long Closed`	`botLongClose`
Entry Short Command	`string`	`Short Entry`	`botShort`
Exit Short Command	`string`	`Short Closed`	`botShortClose`
Backtest Start Year	`int`	`2018`	`testStartYear`
Backtest Start Month	`int`	`1`	`testStartMonth`
Backtest Start Day	`int`	`1`	`testStartDay`
Backtest Period (days)	`int`	`9999`	`testPeriodLen`
Long Take Profit (%)	`float`	`0`	`i_longTP`
Long Stop Loss (%)	`float`	`0`	`i_longSL`

Show all 14 settings

Setting	Type	Default	Variable
Short Take Profit (%)	`float`	`0`	`i_shortTP`
Short Stop Loss (%)	`float`	`0`	`i_shortSL`

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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