OverfitGuard

Strategy reality check

Is your backtest a real edge, or a mirage?

Paste your strategy's periodic returns and get an honest verdict β€” the Deflated Sharpe Ratio (penalised for how many configurations you tried) plus a sealed out-of-sample holdout. No install, no account.

πŸ”’ Runs entirely in your browser. Your returns never leave your computer.
β‘  Your returns
or upload a file:
Be honest β€” a grid of 500 parameter sets is 500.
Used to annualise the Sharpe.
β‘‘ The verdict
β€”

      Pro πŸ”’ Locked
      • β–Έ
        Search screener β€” run White's Reality Check across a whole grid of candidates and find the one real edge (or prove there isn't one).
      • β–Έ
        Printable branded reports β€” a polished report you can save as PDF and hand a client or investor.
      • β–Έ
        Saved history β€” every audit you run, kept and comparable.

      The free audit above is fully functional and always will be. Pro adds the tools you'd pay for β€” and still runs entirely in your browser.

      Get Pro