Outil gratuit
Calculateur de taille de position
Size a position so a single losing trade only costs you a fixed, predetermined fraction of your account.
Les résultats sont des estimations fondées uniquement sur les chiffres que vous saisissez, à des fins d'information et d'éducation uniquement. Ils ne constituent ni un conseil en investissement ni une prévision. Les marchés des cryptomonnaies et des actions comportent un risque réel, y compris la perte de capital.
Comment ça marche
- Risk budget = account × risk %.
- Position size = risk budget ÷ (entry − stop).
- Keeping risk small per trade is how accounts survive losing streaks.
Position sizing: the habit that protects accounts
Most investors obsess over what to buy and barely think about how much. Yet position size, not selection, is what usually determines whether a losing streak is a setback or a catastrophe. The idea is simple: decide in advance the most you are willing to lose on a single trade — often a small, fixed percentage of your account — and size the position so that hitting your stop-loss costs exactly that and no more.
This calculator does the arithmetic. Your risk budget is your account size times your chosen risk percentage. The distance between your entry and your stop-loss is your risk per unit. Dividing one by the other gives the number of units you can hold while keeping the loss within budget. Risking a small fraction per trade means even a long run of losers leaves your capital — and your ability to keep investing — intact. The calculateur risque/rendement is its natural companion.