Backtest validation with statistics that don't flatter you.
Every check here exists because it's the one people skip when the backtest is finally winning.
Corrects your Sharpe ratio for every variant you tested, not just the one that happened to win.
Monte Carlo resampling builds the real distribution of luck for your setup - not a rule of thumb.
Every recorded trial stays on the record - no deleting the losers after the fact.
Commission and slippage are charged on every simulated fill, every time.
Describe entries, exits, and sizing with a picker - no notebook, no glue code.
Daily bars for crypto and equities - not synthetic or look-ahead-biased series.
Trusted at scale:
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Results are recorded to a shared demo ledger, not a private account.