A market drawdown is the decline in the value of a trading account, investment, portfolio, or asset from its previous peak to a subsequent low before a new peak is reached. In simple terms, it measures how much an investment has fallen from its highest point during a particular period. Drawdowns are a normal part of financial markets and can occur even when an overall strategy remains profitable.

For example, if a trading account grows from $10,000 to $12,000 and then falls to $10,800, the drawdown is $1,200, or 10% from the peak. The size and duration of a drawdown are both important. A small decline that lasts only a few days may be relatively easy to manage, while a deeper decline that continues for several months can place considerable psychological and financial pressure on a trader.

One of the most commonly used measures is maximum drawdown, which represents the largest peak-to-trough decline recorded during a specific period. Traders and investors use this figure to understand the downside risk associated with a strategy or portfolio. A strategy generating high returns may appear attractive, but if those returns come with extremely large drawdowns, the underlying risk may be much greater than expected.

Drawdowns can result from losing trades, changing market conditions, excessive leverage, poor risk management, or temporary periods when a strategy performs poorly. Professional traders therefore monitor drawdowns closely rather than focusing only on profits. Understanding drawdown helps traders set realistic expectations, control position sizes, establish risk limits, and determine whether their strategy can survive difficult market conditions. Ultimately, managing drawdown is an important part of protecting capital and maintaining long-term trading consistency.