📐 Position Sizer
Given account size and risk %, what position size + stop distance keeps your loss bounded? With option-contract math.
Account & Risk
Account size ($)
Risk per trade (%)
Instrument
Stock / ETF
Option (per contract)
Future (point value)
Trade
Entry price ($)
Stop price ($)
Target price ($)
Contract multiplier
$ at risk
—
Risk per share/contract
—
Position size
—
Position notional
—
% of account in trade
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Reward:Risk
—
Win → $ gain
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Loss → $ loss
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