Investing / Size the trade.
Position Sizing & Risk
Position size, R-multiple, Kelly criterion, stop-loss / take-profit, and max-drawdown math that powers the r/investing and r/Daytrading threads.
5 tools available
Position Size Calculator
Compute shares to buy from account size, risk %, and stop distance.
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R-Multiple Calculator
Score a trade by its reward-to-risk multiple.
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Stop-Loss / Take-Profit Calculator
Plan a stop and target by R-multiple and risk percent.
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Kelly Criterion Calculator
Find the optimal bet size from your edge and odds.
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Max Drawdown Calculator
See how much an account shrinks from peak to trough in percent.
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