Your backtest is probably lying to you.
Leaderboards rank strategies by raw Sharpe. We rank them by the Sharpe that survives purged cross-validation and trial-deflation — the same gate that promotes our own live quant fleet. Paste a strategy. Get the honest verdict in seconds. Free.
Free: Is your strategy overfit?
Probability of Backtest Overfit (PBO), Deflated Sharpe (DSR), and a multiple-testing-corrected verdict — no signup.
Hypothesis → p-value
Test a signal idea with honest, multiple-testing-corrected significance. Open research tool →
NL → strategy copilot
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Why we're different
Most retail quant tools optimize for a number that looks good in-sample. A strategy with Sharpe 12 on 30 trades and a -49% drawdown will top a leaderboard and lose your money. We expose the integrity layer (purged-CPCV, PBO, DSR, sample-uniqueness) as the product. Own the data, not the dream.