Size a position from your risk rules: choose how much of your account to risk and where your stop is, and see how many units that allows.
Position size
20 units
Worth $1,000 (10.0% of account)
Amount at risk
$100
1% of account
Risk per unit
$5
Entry to stop
If the trade hits your stop, you lose the amount at risk — not the whole position. Sizing by risk is what keeps a single loss from doing outsized damage.
This is an educational illustration using the figures and assumptions you enter — not financial advice, a forecast, or a recommendation. Real returns vary and are never guaranteed. Always do your own research and consider professional advice before making financial decisions.
The free lessons behind this calculator:
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