OPEN-SOURCE SCRIPT
Hindsight Gap - swing levels
A swing high is not a swing high until some bars have closed after it. If a script marks the level on the bar it forms, every rule that references that level has already seen the future.
This draws both versions of every pivot. The dotted segment covers the window where the level exists only in hindsight. The solid segment starts on the bar the swing is confirmed, which is the first bar you could have acted on. The shaded box is that blind window.
The table measures what the gap costs. On BTCUSDT 15m with swing length 5 it counted 2834 swings and an average move of 0.36% between formation and confirmation. In ATR terms that is 1.14, with a worst single gap of 5.5%. Those numbers move with symbol and timeframe, and they are never zero.
Swing length sets both sides of the pivot, so confirmation always lags by that many bars. Nothing repaints: every line and box is created on the confirmation bar and is never moved afterwards.
Use it as a check on your own scripts. If a level shows up in your logic before the solid segment starts, that part of your backtest is reading the future.
This draws both versions of every pivot. The dotted segment covers the window where the level exists only in hindsight. The solid segment starts on the bar the swing is confirmed, which is the first bar you could have acted on. The shaded box is that blind window.
The table measures what the gap costs. On BTCUSDT 15m with swing length 5 it counted 2834 swings and an average move of 0.36% between formation and confirmation. In ATR terms that is 1.14, with a worst single gap of 5.5%. Those numbers move with symbol and timeframe, and they are never zero.
Swing length sets both sides of the pivot, so confirmation always lags by that many bars. Nothing repaints: every line and box is created on the confirmation bar and is never moved afterwards.
Use it as a check on your own scripts. If a level shows up in your logic before the solid segment starts, that part of your backtest is reading the future.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
I try to break trading strategies before they cost anyone money: random entries on the same days, then costs doubled. Write-ups at backtestpro.gumroad.com
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
I try to break trading strategies before they cost anyone money: random entries on the same days, then costs doubled. Write-ups at backtestpro.gumroad.com
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.