Enter Values

%
Compound annual return over the period
%
Largest peak-to-trough decline (enter as negative)
Calmar Ratio Formula
Calmar = CAGR / |Max Drawdown|
CAGR = Compound Annual Growth Rate | Max Drawdown = Largest peak-to-trough decline
Model Assumptions
  • Annualized return is compound annual growth rate (CAGR)
  • Return and drawdown measured over the same period
  • Maximum drawdown provided by user (not computed)
  • Traditional 36-month trailing window is common but not enforced
For educational purposes. Not financial advice.
Ryan O'Connell, CFA
Calculator by Ryan O'Connell, CFA

Calculation Result

Calmar Ratio 0.60 Acceptable

Interpretation Guide

Calmar Ratio Rating Interpretation
≥ 1.0 Strong Returns exceed max drawdown
0.5 - 1.0 Acceptable Reasonable risk-adjusted performance
0 - 0.5 Weak Limited compensation for drawdown risk
< 0 Negative Loss over measurement period

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Understanding the Calmar Ratio

What is the Calmar Ratio?

The Calmar Ratio is a risk-adjusted performance measure that evaluates investment returns relative to maximum drawdown risk. Named after Terry W. Young at California Managed Account Reports, it is widely used in hedge fund analysis and managed futures evaluation.

Unlike the Sharpe Ratio, which uses standard deviation as its risk measure, the Calmar Ratio focuses on maximum drawdown - the largest peak-to-trough decline experienced by an investment. This makes it particularly valuable for investors who are more concerned about the worst-case scenario than overall volatility.

Calmar Ratio Formula

Calmar Ratio = Annualized Return (CAGR) / |Maximum Drawdown|

Both the annualized return and maximum drawdown should be measured over the same period. The traditional convention uses a trailing 36-month (3-year) window, though other periods may be used.

Calmar vs Sharpe vs Sortino

Ratio Risk Measure Best For
Calmar Maximum Drawdown Worst-case scenario analysis
Sharpe Standard Deviation Overall volatility assessment
Sortino Downside Deviation Downside volatility focus

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Frequently Asked Questions

The Calmar Ratio is a risk-adjusted performance measure that compares compound annualized return (CAGR) to maximum drawdown over the same period. Named after Terry W. Young at California Managed Account Reports, it helps investors evaluate whether returns adequately compensate for drawdown risk. A higher Calmar Ratio indicates better risk-adjusted performance.

The Calmar Ratio formula is: Calmar Ratio = Annualized Return (CAGR) / |Maximum Drawdown|. Both values should be measured over the same period, commonly trailing 36 months. For example, if a fund has a 12% CAGR and experienced a maximum drawdown of -20%, the Calmar Ratio is 12% / 20% = 0.60.

A Calmar Ratio of 1.0 or higher is generally considered strong, indicating the fund generates annual returns at least equal to its maximum drawdown. Values between 0.5-1.0 are acceptable, while 0-0.5 suggests weak risk-adjusted performance. A negative Calmar Ratio indicates the fund lost money over the measurement period.

While both measure risk-adjusted returns, they use different risk metrics. The Sharpe Ratio uses standard deviation (volatility) as the risk measure, capturing both upside and downside variation. The Calmar Ratio uses maximum drawdown, focusing specifically on the worst peak-to-trough decline. Calmar is better for evaluating downside risk tolerance and what investors psychologically experience as loss.

Maximum drawdown represents the worst-case scenario an investor would have experienced - the largest drop from a peak to a subsequent trough. Unlike volatility, drawdown directly measures what investors psychologically experience as loss. Many investors abandon strategies during large drawdowns, making this metric crucial for evaluating sustainability.

Key limitations include: (1) It uses only one data point (maximum drawdown) rather than the distribution of drawdowns, (2) It is sensitive to the measurement period - longer periods tend to have larger drawdowns, (3) It does not account for drawdown duration or recovery time, (4) It assumes the historical maximum drawdown is representative of future risk.

Disclaimer: This calculator is for educational purposes only and does not constitute financial advice. The Calmar Ratio is one of many metrics used to evaluate risk-adjusted performance. Always consult with a qualified financial professional before making investment decisions. Past performance does not guarantee future results.

Course by Ryan O'Connell, CFA

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Master risk-adjusted performance metrics including the Calmar Ratio, Sharpe Ratio, Sortino Ratio, and more. Learn to evaluate hedge fund performance like a professional.

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