The 1% risk rule means you never risk more than one percent of your account on a single trade. On a $10,000 account, that is a $100 maximum loss per trade - regardless of how good the setup feels. It is a cap on damage, not a prediction about the trade.
Why one percent survives streaks
Every profitable strategy still loses several trades in a row sometimes. The question is not whether streaks happen, but whether your account survives them. At one percent risk, a brutal run barely dents the balance:
- 5 losses in a row -> about 5% drawdown.
- 10 losses in a row -> about 10% drawdown.
- 20 losses in a row -> about 18% drawdown.
Compare that with risking 10% per trade, where five losses in a row cuts the account roughly in half. Understanding how likely those streaks are is worth reading in consecutive losses probability.
The math of recovery
Small drawdowns are easy to recover; deep ones are punishing. A 10% loss needs an 11% gain to get back, but a 50% loss needs a 100% gain. Keeping each trade to one percent means your drawdowns stay shallow, so recovery is always within reach. This is the same asymmetry explained in maximum drawdown.
How to actually trade at one percent
The rule only works if your position size adjusts to your stop. Take one percent of the balance in dollars, then let position sizing convert it into a lot:
Lot size = (1% of balance) / (stop distance in pips x pip value per lot)
A tight stop allows a bigger lot; a wide stop forces a smaller one. Either way the dollar loss is the same one percent, which is exactly the point.
Important: one percent is the ceiling, not a target to chase. The rule protects you from your own worst trade. It does nothing for you if you break it "just this once" on a setup you are sure about - that single exception is how most rule-following traders eventually blow up.
Prove the rule to yourself
Reading that one percent survives a losing streak is one thing; watching your own equity curve stay intact through ten losses is another. Backtesting with fixed one-percent risk lets you live through the drawdowns safely, so you build genuine trust in the rule before real money is exposed to the same streaks.
The arithmetic behind the rule is set out in the risk of ruin table: a break-even strategy risking 1% per trade has a 0.24% chance of a 50% drawdown over 500 trades, while the identical strategy risking 10% fails 94% of the time. Same edge - only the bet size changes.
1% risk rule FAQ
What is the 1% risk rule in trading?
You never risk more than one percent of your account on a single trade - a $100 cap on a $10,000 account. It limits any one loss so a losing streak cannot end the account.
Is 1% risk per trade too conservative?
For most traders it is a sensible ceiling. Ten losses in a row draw down only about ten percent. Some use half a percent; few serious traders exceed two.
How do I trade a fixed 1% risk?
Divide one percent of your balance by the stop distance in pips times pip value to get the lot. Because the lot adjusts to the stop, the dollar loss stays at one percent.