Free tools

Two calculators that run entirely in your browser. Nothing you type is sent anywhere.

Disposition-effect calculator

Enter four counts of positions sold and held, at a gain and at a loss, and get PGR, PLR, their ratio and a significance test, as in Odean (1998). For traders and firms.

Prop-firm pass-rate calculator

For firm operators: the evaluation pass rate and payout rate for one cohort, computed correctly, with the common mistakes explained.