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Backtesting, explained honestly

Short pieces on the things that decide whether a backtest means anything: bias, costs, sample size and timeframes.

Data Snooping Bias for Traders: Reality Check, SPA, and Tools
Data Snooping BiasSeptember 22, 202611 min read

Data Snooping Bias for Traders: Reality Check, SPA, and Tools

How data snooping bias inflates backtests, which tests (Reality Check, SPA) detect it, and practical backtesting steps and tools to expose overfitting...

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Backtest Trading Strategies Like a Regulator for Traders
Backtest Trading StrategySeptember 22, 202611 min read

Backtest Trading Strategies Like a Regulator for Traders

Use a regulator-style, evidence-based workflow to backtest trading strategies: precise rules, realistic fills, out-of-sample validation, and paper trading...

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Maximum Drawdown for Traders: Spot 50% Losses That Need 100% Gains
Maximum DrawdownSeptember 21, 202610 min read

Maximum Drawdown for Traders: Spot 50% Losses That Need 100% Gains

Calculate maximum drawdown, run backtest checks to expose hidden risk, and validate trading strategies with peak to trough examples.

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Backtest Your Options Strategy With Realistic Fills and Robust Tests
Backtest Options StrategySeptember 20, 202614 min read

Backtest Your Options Strategy With Realistic Fills and Robust Tests

Backtest options strategies using realistic fills, out of sample checks, and Monte Carlo stress tests. Try a free Backtestify account to run your first...

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