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Free tools / Risk and performance

Drawdown calculator

Find the maximum drawdown of your account or backtest, and see how much you need to gain to get back to the peak.

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Result

Maximum drawdown (%)
10.09%
Maximum drawdown
1,100
Peak
10,900
Trough
9,800
Where
value 4 to value 6
Back at the peak
yes, at value 8
Longest time under water
3 periods
Gain needed to recover it
11.22%
Gain needed to recover
25%

Turn on JavaScript to recalculate. The results below are for the example values.

Gain needed to recover

DrawdownGain needed
−5%+5.3%
−10%+11.1%
−15%+17.6%
−20%+25%
−25%+33.3%
−30%+42.9%
−40%+66.7%
−50%+100%
−60%+150%
−75%+300%
−90%+900%

How it works

Deeper drawdowns are much harder to repairGain needed to get back to the peak−10%+11%−20%+25%−30%+43%−50%+100%−75%+300%Limit the drawdown before you chase return.

What drawdown is

Drawdown is the fall from the highest account value so far (the peak) to a later low (the trough). Maximum drawdown is the largest such fall, in money or in percent of the peak.

Losses and gains are not symmetric

Gain needed = loss ÷ (1 − loss). After a 20% drawdown you need +25% to get back; after 50%, +100%; after 75%, +300%. That is why limiting drawdown matters more than the extra return of more risk.

Drawdown in a backtest

The maximum drawdown of a backtest is one path through history. Live trading will meet a different order of trades, and the next drawdown can be deeper. Plan for more than the backtest showed.

Questions

How is maximum drawdown calculated?

Track the highest value reached so far. At each point, drawdown is that peak minus the current value. The maximum drawdown is the largest of those, often shown as a percent of the peak.

How much do I need to gain after a 50% loss?

100%. Half of the account has to double to return to where it started.

What is a good maximum drawdown?

It depends on what you can live with. Many traders size positions so that the expected maximum drawdown stays below 20–30% of the account.

Drawdown in money or percent?

Percent compares accounts of different sizes; money tells you what you actually lost. This calculator shows both.

Test the idea on years of data, not one trade

AlphaPrime generates and backtests futures strategies on your GPU, with contract specs, trading costs and sessions built in, then exports the strategy code for your trading platform.

Free 7-day trialSee how it works

For education. Not investment advice. Check the exchange before you trade.