Risk & position sizing
The maximum you should lose on one trade, before anything else about the trade is decided.
The maximum you should lose on one trade, before anything else about the trade is decided. The page states the equation, the units it expects and the rounding it applies, so the result can be reproduced by hand.
A calculator gives you a number. This one feeds the next: account to risk, risk to position size, position size to the trade, and the trade to expectancy, drawdown and risk of ruin.
See the performance tools →Not live yet
This calculator is specified but not wired up in this build. The Position Size Calculator is the working template it will follow: inputs, live result, formula, worked example, assumptions and FAQs on one page.
Open the working example →Method
Costs, slippage and non-USD conversion are handled by their own calculators rather than folded in silently here.