Drawdowns Explained
A drawdown is the decline from a peak to a subsequent trough — and because losses and the gains needed to recover from them aren't symmetric, drawdowns matter more than they might first appear.
What a drawdown measures
A drawdown is the percentage decline in an investment's value from its most recent peak to its lowest subsequent point, before a new peak is reached. If a portfolio worth $100,000 falls to $80,000 before recovering, that's a 20% drawdown, regardless of how long it took or what happened afterward.
Maximum drawdown refers to the single largest peak-to-trough decline over a given period, and it's one of the most widely used risk metrics in investing because it captures the worst-case pain an investor actually experienced, not just an average measure of volatility.
The asymmetry of losses and recovery
Percentage losses and the gains needed to reverse them are not mirror images of each other, and this asymmetry is one of the most underappreciated facts in investing. A 20% loss requires a 25% gain just to get back to even, because the gain has to be calculated on a smaller starting base. A 50% loss requires a 100% gain to fully recover.
This asymmetry grows more punishing as the loss deepens, which is exactly why avoiding severe drawdowns matters more than it might intuitively seem — the deeper the hole, the disproportionately larger the climb back out.
Recovery time
Alongside the size of a drawdown, how long it takes to recover — the time from the trough back to a new peak — is its own important measure. Two investments could have the same maximum drawdown but very different recovery times, and a long recovery period can matter a great deal to an investor who needs to access the money during that stretch.
Why it matters psychologically
Drawdowns aren't just a mathematical concept; they're what investors actually feel while living through a downturn. A strategy with strong long-term average returns but occasional severe drawdowns can be difficult to stick with in practice, because it's during the drawdown itself — not after it's over — that investors are most tempted to sell at the worst possible time. Understanding a strategy's typical drawdown behavior in advance is part of setting realistic expectations for the ride.
Track how far major indices sit from their recent highs on AIOVEL's indices dashboard to see drawdown dynamics unfold live.
Quick answers
How much gain is needed to recover from a 30% drawdown?
About 43%. Because gains are calculated on a smaller base after a loss, the recovery percentage always exceeds the original decline, and that gap widens as losses get larger.
What's the difference between drawdown and volatility?
Volatility measures how much a price fluctuates generally, while drawdown specifically measures the worst peak-to-trough decline experienced, capturing realized pain rather than an average statistical spread.
Why do investors care about maximum drawdown specifically?
It represents the worst-case scenario an investor actually would have lived through historically, which is often more relevant to real-world decision-making than an average volatility figure.