What is Risk Per Trade?
The maximum percentage or dollar amount of your account you are willing to lose on a single trade — the foundation of sound position sizing.
Risk per trade is the most important variable in your trading system. It determines how much of your account can be lost in a single position, and directly governs the size of every trade you place.
Common risk levels:
| Trader Type | Risk Per Trade |
|---|---|
| Conservative | 0.25–0.5% |
| Standard retail | 0.5–1% |
| Aggressive | 1–2% |
| Reckless (avoid) | > 2% |
Why 1% is widely recommended:
At 1% risk per trade, you can lose 20 consecutive trades and still have 82% of your starting capital. At 5% risk, 20 consecutive losses leave you with only 36%.
The probability of 20 consecutive losses with a 40% win rate: approximately 0.004%. Manageable. The probability of 10 consecutive losses: 0.4% — possible in any trading career.
Setting risk in dollar terms:
On a $10,000 account with 1% risk:
Maximum loss per trade = $10,000 × 1% = **$100**
Your position size is then calculated to ensure the stop-loss distance equals exactly $100.
Adjusting risk per trade for prop firms:
Most prop firm challenges require reducing risk per trade to account for the daily drawdown limit. If you have a 5% daily limit and are trading 3 setups per day, risk per trade should be 1–1.5% to preserve buffer for a bad sequence.