Forex Basics
Oct 17, 2026 6 min read
Forex Backtesting: How to Test a Strategy Without Cherry-Picking Results
Forex backtesting fails more often from the tester than from the strategy: rules that are tightened after seeing the losses, data that stops at a convenient date, costs that are left out. This guide sets out a procedure that makes cherry-picking hard: rules written before the data is opened, a sample large enough to contain the bad streaks, costs modelled honestly, a walk-forward split, and a results table that reports the numbers that predict live performance.
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