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The Daily Insight

What if the market return is negative?

Author

James Williams

Published Feb 19, 2026

A negative rate of return is a loss of the principal invested for a specific period of time. The negative may turn into a positive in the next period, or the one after that. A negative rate of return is a paper loss unless the investment is cashed in.

What is the market rate of return?

While that sounds like a good overall return, not every year has been the same. While the S&P 500 fell more than 4% between the first and last day of 2018, values and dividends increased by 31.5% during 2019….

YearS&P 500 annual return
201721.8%
2018-4.4%
201931.5%
202018.4%

What is risk free rate Sharpe ratio?

The risk-free rate used in the calculation of the Sharpe ratio is generally either the rate for cash or T-Bills. The 90-day T-Bill rate is a common proxy for the risk-free rate. The Sharpe ratio tells investors how much, if any, excess return they can expect to earn for the investment risk they are taking.

What is risk free return rate?

The risk-free rate of return is the theoretical rate of return of an investment with zero risk. The risk-free rate represents the interest an investor would expect from an absolutely risk-free investment over a specified period of time.

What is the risk free rate of return in CAPM?

In the above CAPM example, the risk-free rate is 7% and the market return is 12%, so the risk premium is 5% (12%-7%) and the expected return is 17%.

What’s the difference between market risk premium and expected return?

The market risk premium is the expected return of the market minus the risk-free rate: rm – rf. The market risk premium represents the return above the risk-free rate that investors require to put money into a risky asset, such as a mutual fund.

How is the real risk free rate calculated?

The risk-free rate represents the interest an investor would expect from an absolutely risk-free investment over a specified period of time. The real risk-free rate can be calculated by subtracting the current inflation rate from the yield of the Treasury bond matching your investment duration.