Insights on Automated Trading

Overfitting in EAs: Why Perfect Backtests Fail Live

Overfitting in EAs: Why Perfect Backtests Fail Live

Overfitting in EAs: Why Perfect Backtests Fail LiveJay Slingsby
Published on: 25/08/2026

An EA that looks flawless in a backtest can fall apart in live trading. Here's why overfitting happens and how to spot it before you trust the results.

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Backtesting an EA: Why Past Results Don't Guarantee Future Performance

Backtesting an EA: Why Past Results Don't Guarantee Future Performance

Backtesting an EA: Why Past Results Don't Guarantee Future PerformanceJay Slingsby
Published on: 26/07/2026

A great backtest doesn't guarantee a great EA. Here's why past results can be misleading and what to actually look for before trusting one.

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