Key takeaways
- Recovery needs a larger gain than the loss: 25% down needs +33%, 50% down needs +100%.
- Risk per trade controls how deep a normal losing streak can go.
- Recovery also takes time, and impatience during it causes bigger drawdowns.
- Write tiered drawdown rules in advance, with size reduction before any full stop.
Lose 50% of an account and you need to make 100% to get back to where you started. That asymmetry is not a quirk of bad luck, it is arithmetic, and it explains why professionals talk about drawdown before they talk about returns. Understanding it changes how much you are willing to risk on any single trade.
What drawdown actually measures
A drawdown is the fall in account value from a previous peak to a later low, expressed as a percentage of that peak. If equity climbs to 10,000, slides to 7,500 and then recovers, the drawdown was 25%. It stays a drawdown until a new peak is made.
Three related terms are worth separating. The current drawdown is where you stand now compared with your last high. The maximum drawdown is the worst such fall over a whole period, and it is the figure most often quoted in track records. The drawdown duration is how long it took to climb back, which is often the part traders find hardest to live with.
Why recovery needs a bigger percentage than the loss
A percentage loss is applied to a large balance, but the percentage gain that repairs it is applied to a smaller one. The gain needed is 1 ÷ (1 − loss) − 1. Starting from 10,000, a 25% loss leaves 7,500. To return to 10,000 you must earn 2,500 on a base of 7,500, which is +33.3%.
| Drawdown | Balance left from 10,000 | Gain needed to recover |
|---|---|---|
| 10% | 9,000 | +11.1% |
| 20% | 8,000 | +25% |
| 30% | 7,000 | +42.9% |
| 40% | 6,000 | +66.7% |
| 50% | 5,000 | +100% |
| 60% | 4,000 | +150% |
| 75% | 2,500 | +300% |
| 90% | 1,000 | +900% |
The curve is gentle at first and then bends sharply upward. The step from 10% to 20% adds about 14 points to the required gain. The step from 50% to 60% adds 50 points. Beyond roughly 30% the task of recovering starts to look unrealistic for most people, which is the practical reason risk limits are set well inside that zone.
Calculated from 1 ÷ (1 − loss) − 1. The arithmetic is exact, the account is illustrative.
How risk per trade shapes drawdown
Drawdown is not only about bad strategies. Even a method with a genuine edge will produce losing streaks, and the size of each loss decides how deep a streak cuts. Consider ten losses in a row, a sequence that is uncommon but far from impossible for a method that wins four trades in ten. The losses compound on a shrinking balance.
| Risk per trade | Balance after 10 straight losses (start 10,000) | Drawdown | Gain needed to recover |
|---|---|---|---|
| 1% | 9,044 | 9.6% | +10.6% |
| 2% | 8,171 | 18.3% | +22.4% |
| 5% | 5,987 | 40.1% | +67.0% |
| 10% | 3,487 | 65.1% | +186.8% |
These are illustrative calculations for fixed-percentage risk. At 1% the streak is a nuisance. At 5% it is a crisis, and at 10% the account is close to unusable. With leveraged products, the temptation to risk more per trade is built into the product, so the discipline has to come from you.
Time to recover: the hidden cost
A drawdown also costs time. Suppose a method averages a 2% gain per month, which is a generous assumption. Recovering a 10% drawdown (needing +11.1%) takes about 5 months. Recovering a 25% drawdown (needing +33.3%) takes about 14 to 15 months. During that time you are earning nothing net, and the pressure to take bigger risks to hurry up is intense. That pressure is exactly how a 25% drawdown becomes a 40% one.
Setting drawdown rules before you need them
Rules written in calm conditions are easier to follow than decisions made after a bad week. The structure below is an example of a tiered policy. The percentages are illustrative, and each person should pick numbers that match their own tolerance and account purpose.
An example tiered drawdown policy
- Define the reference peak. Decide whether the peak is the all-time equity high or the start of the current month. Write it down so you cannot redefine it mid-slump.
- Set a first warning level. For example, at a 5% drawdown, cut position size by half and keep trading only your clearest setups.Tip: Reducing size slows the slide and keeps data coming in.
- Set a pause level. For example, at 10%, stop trading for a fixed period and review your journal for rule breaks, cost changes or a shift in market conditions.
- Set a hard limit. For example, at 15 to 20%, step back to a demo or very small size until you can explain what went wrong in writing.
- Define the way back. Return to full size only after a set number of trades that follow the plan, not after a single lucky win.
Frequently asked questions
Is a 20% drawdown normal?
It depends on the method and the account purpose. Long-term equity investors often live through falls of that size or larger. A leveraged short-term trader risking a fraction of a percent per trade would consider it a sign something is wrong.
Does a smaller drawdown always mean a better strategy?
Not by itself. A method can have small drawdowns because it earns very little, or because it hides risk such as an occasional large gap. Compare drawdown with return and with how the losses are distributed.
Does maximum drawdown in a track record predict the future?
No. The worst fall so far is only the worst fall observed. A longer record or a different market can produce a deeper one, so many practitioners assume the next maximum drawdown will exceed the last.
How do I measure drawdown on my own account?
Keep a running record of equity, note the highest value reached, and calculate the percentage fall from it after each trade or each day. Most platforms and spreadsheets can do this with a simple formula.