What Is Drawdown in Trading? (And Why It Matters More Than Win Rate)
Drawdown measures the worst-case loss of your trading account. While win rate tells you how often you win, drawdown tells you how much you could lose before you recover. The math behind recovery is brutal — and it's why drawdown matters more than any other stat.
Definition: Peak-to-Trough Decline
Drawdown is the percentage drop from the highest equity peak to the lowest trough that follows. If your account goes from $10,000 to $7,000, that's a 30% drawdown. Simple to calculate, devastating to experience.
Why Drawdown Beats Win Rate
A 50% drawdown requires a 100% gain to break even. You lost half your money — now you need to double what's left just to get back to where you started. Even a high win rate is meaningless if a few large losers create deep drawdowns.
The Recovery Table
The relationship between drawdown and required recovery gain is non-linear — and punishing:
| Drawdown | Gain Needed to Recover |
|---|---|
| 10% | 11% |
| 25% | 33% |
| 50% | 100% |
| 75% | 300% |
A 25% drawdown is uncomfortable but recoverable. A 50% drawdown is catastrophic. A 75% drawdown is effectively a blown account — you need to quadruple your remaining capital.
Max vs Average Drawdown
Max drawdown is the single deepest peak-to-trough decline across the entire backtest period. It's the worst case.
Average drawdown is the typical drawdown experience — the normal dips your equity curve takes. You'll see this more often, but max drawdown is the one that tests whether you survive.
How Monte Carlo Stress-Tests Drawdown
A single backtest shows one drawdown number. But trade order matters — the same trades in a different sequence produce a different equity curve with a different max drawdown.
The Strategy Lab runs 500 Monte Carlo simulations per backtest, each with randomized trade ordering. This shows the range of possible drawdowns, not just one. The median max drawdown across 500 simulations is a more reliable risk measure than a single historical drawdown figure.
The Psychological Test
Can you stomach a 30% drawdown without panic-selling? What about 40%? Most traders can't. The strategy with the highest return isn't the best strategy — the best strategy is the one you can actually hold through its drawdowns without abandoning it.
This is why the Strategy Lab shows max drawdown and Monte Carlo median max drawdown for every setup. A strategy with 150% return and 15% max DD is tradeable. A strategy with 300% return and 60% max DD will probably destroy your account before it pays off.
Browse the Strategy Lab leaderboard — every setup shows its drawdown stats.