Data mismatch between chart and backtest

Optuma Forums Optuma Scripting Data mismatch between chart and backtest

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  • #67819
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    In running a backtest, when I compare the prices of trades listed in the backtest with the actual prices on the charts, there is a mistmatch. For example, the first line in the attached file shows XBI sold at $132.84 on 8/1/21. The price range that day (actually Monday, 8/2/21) was $123.06 to $125.80. Is there a reason for this?

    • This topic was modified 6 months ago by Michael. Reason: correct typo
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    Without seeing the specific back tests properties i can only make a guess, however It looks like your back test is being run on Monthly data.  Change your charts time frame to 1 Month and you will see the monthly bar for August 2021 has a closing price of $132.84 (last close of the month when viewing a daily chart).

    That is where the price is coming from.

    If you want to run the back test as if it were on a daily chart, change the Back Tests time frame to Daily.

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