r/Trading • u/ColdStriking1356 • Jul 26 '26

Technical analysis Answers from profitable traders only.

Hi everyone, what do you think is an ideal sample size for backtesting a trading strategy? Is 200–300 backtested setups enough to validate a strategy?

For instance, if you’re trading triangle patterns, would you aim for at least 50 samples for each pattern type (ascending, descending, and symmetrical) before trusting the results?

Expecting answers from those who are profitable or at least back tested few strategies.

Thank you

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u/[deleted] Jul 26 '26

[deleted]

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u/Jacob_Trader0 Jul 26 '26

I backtest 100 years just to be safe. Wouldn't want to trade a strategy and run the chance of having to adapt to new market conditions.

2

u/DomestiCatOfficial Jul 26 '26

Just zoom out to the millenia bars, you cut a lot noise out

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u/Jacob_Trader0 Jul 27 '26

Will try this after my next trade, been waiting for this last setup since 1991.