Sharp, honest, and private. No signup, no upload — everything runs in your browser.
Drop a screenshot of your P&L from any platform. Explore the return stream and the statistical evidence for skill versus luck. Estimates depend on data quality and assumptions.
Try it →Translate a risk target into illustrative exposure. Explore volatility estimates, leverage caps and the limits of a one-asset model.
Calculate exposure →See the gain needed to recover from a loss, how a withdrawal changes the balance, and what a smooth-growth assumption implies.
Explore recovery →A worked guide to the sizing rule, estimation lag, correlations and costs. Understand what a risk target does—and what it cannot promise.
Read the guide →Same engine, just the numbers: Sharpe, volatility, and max drawdown read straight off any chart image.
Coming soonPlay 50 rounds against Kelly. Same deals, same outcomes — you choose how much to risk. Explore the calculator after the game.
Play Beat Kelly →