Position size calculator
Tom's rule: (account × risk %) ÷ stop points = stake per point
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Stake per point
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what you bet per point of movement
Risk per trade
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lost if the stop is hit
The survival check
Can your account take the real losing streak without breaking you?
Drawdown over the streak
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consecutive losses × risk per trade
% of account gone
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before a single winner
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Why this matters more than the win rate: these strategies win by losing small, often. A 62% win rate still delivers 24 losses in a row (it happened to Tom, on real money). If a streak that normal wipes 30%+ of your account, you will abandon the plan at exactly the wrong moment — right before the winner that pays for all of them. Size for the streak, not for the average.