Understanding maximum drawdown: Sleep better at night

Every trader will face a losing streak. It's inevitable. The question isn't if you'll experience a drawdown, but how deep it will be — and whether you'll survive it.

Maximum drawdown is arguably the most important risk metric in trading. It tells you the worst-case scenario for your strategy or account.

1. What is maximum drawdown?

If your account goes from $10,000 to $8,000, your maximum drawdown is 20%.

2. Why drawdown matters more than you think

Win rate and average profit get all the attention, but drawdown is what actually determines whether you survive long enough to benefit from either. It reveals your strategy's true risk profile — a strategy with a fantastic average return but a 60% drawdown is unusable in practice, because no trader (or their broker's margin requirements) can psychologically or financially survive watching an account cut by more than half.

The math of recovery is brutally asymmetric, and it's the single biggest reason drawdown deserves more attention than almost any other metric: losses and the gains needed to erase them don't scale the same way. A 20% drawdown needs a 25% gain to recover. A 50% drawdown needs a 100% gain — you have to double what's left just to get back to even. A 75% drawdown needs a 300% gain. Past a certain depth, mathematical recovery becomes practically impossible within a normal trading career, which is exactly why controlling the depth of drawdowns matters more than chasing slightly higher average returns.

3. How to calculate maximum drawdown

Maximum drawdown is measured from a specific equity peak to the lowest point (the trough) reached before a new peak is made — not just the difference between your starting and current balance. Walk your equity curve chronologically, tracking the highest point reached so far; every time the curve dips below that running peak, measure the percentage drop, and keep the largest one you find across the entire history.

Worked example: an account climbs from $10,000 to a peak of $12,000, then falls to $9,600 before recovering and eventually climbing to a new peak of $14,000. The drawdown here isn't measured from the $10,000 starting point — it's measured from the $12,000 peak down to the $9,600 trough: a $2,400 drop, or 20%. If the account later falls from its new $14,000 peak to $11,900, that's a $2,100 drop, or 15% — smaller in percentage terms despite being a similar dollar amount, because the peak it's measured against is higher. Maximum drawdown is whichever of these peak-to-trough drops was the deepest.

4. What is a "Normal" Drawdown?

Drawdown Level	Risk Profile	Who It's For
5% – 10%	Very Conservative	Retirement accounts
10% – 15%	Conservative	Swing traders
15% – 25%	Moderate	Day traders
25% – 35%	Aggressive	High-risk strategies
35%+	Very Aggressive	Danger zone

5. Managing drawdown: Strategies to survive and thrive

• Reduce position size during a drawdown. Many professional traders cut their per-trade risk in half (e.g. from 1% to 0.5%) once drawdown passes a set threshold, such as 10%, and only restore full size after a new equity high. This slows losses exactly when confidence and judgment are most likely to be compromised.
• Take a deliberate break, not an emotional one. A short, planned pause after several consecutive losses (a day or two, not weeks) lets you step away from the loop of fear-driven decisions without abandoning the strategy entirely.
• Review your journal for a pattern, not just a feeling. Pull up the trades from the drawdown period and look for a common thread — one bad setup type, one time of day, one emotional state — rather than assuming it's simply "bad luck."
• Stick to your rules, especially now. The temptation during a drawdown is to abandon a proven strategy right when variance (not a broken edge) is usually the actual cause — see our backtesting guide for how to distinguish the two.
• Consider diversifying uncorrelated strategies. Running two genuinely uncorrelated strategies side by side can smooth the combined equity curve, since one strategy's drawdown period doesn't necessarily overlap with the other's.

6. The psychological impact of drawdowns

Drawdowns test your character more directly than any winning streak does, because they attack the exact beliefs that keep a trader disciplined: that the strategy works, that patience pays off, that following the plan is worth it. Left unmanaged, that pressure produces a predictable sequence — fear of pulling the trigger on the next valid setup, loss of confidence in a strategy that's still statistically sound, and eventually revenge trading or abandoning the plan altogether at the worst possible moment.

The traders who come out the other side of a drawdown intact are usually the ones who treated it as expected — planned for in advance via position sizing and a pre-committed drawdown response plan — rather than as a surprise emergency to react to in the moment. Journaling through a drawdown (tracking emotions alongside the numbers) is one of the most effective ways to catch the fear-driven decisions before they compound the damage.

Conclusion: Embrace the drawdown

Maximum drawdown is not a flaw in your system — it's a feature. It tells you how much pain your strategy can inflict before recovery, and knowing that number in advance is what lets you size positions, set expectations, and build the psychological preparation to survive it when it inevitably arrives. The traders who last aren't the ones who avoid drawdowns — they're the ones who know exactly how deep theirs can get and plan accordingly.