Maximum drawdown refers to the maximum magnitude of the return decline of a portfolio’s net asset value (NAV) from its highest point (peak) to its lowest point (trough) within a selected period. It measures the maximum decline over a specific timeframe and is a crucial indicator for assessing investment strategy risk.
The calculation method involves identifying the peak and trough, calculating the drawdown magnitude, and determining the maximum drawdown value. Maximum drawdown helps investors intuitively understand the potential for loss, compare the risk characteristics of different investment products, and assess their own risk tolerance.
However, maximum drawdown also has limitations, such as not considering the duration of the decline, being based on historical data and not fully representing future risk, and not taking into account reinvestment and withdrawal of funds. Coping strategies include diversification. In quantitative backtesting, maximum drawdown is also a key metric for measuring strategy performance; the smaller the value, the stronger the strategy’s resilience to market downturns.
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