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- DictionarySharpe ra·ti·o/ˈSHärp ˌrāSHēō/
noun
- 1. a measure that indicates the average return minus the risk-free return divided by the standard deviation of return on an investment.
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noun
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Measure of an investment's risk premium
In finance, the Sharpe ratio measures the performance of an investment such as a security or portfolio compared to a risk-free asset, after adjusting for its risk. It is defined as the difference between the returns of the investment and the risk-free return, divided by the standard deviation of the investment returns. It represents the additional amount of return that an investor receives per uni... Wikipedia