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The Sharpe Ratio

幫考網(wǎng)校2020-08-07 13:34:28
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The Sharpe Ratio is a measure of risk-adjusted return, which was developed by Nobel laureate William F. Sharpe. It is calculated by dividing the excess return of an investment (the return above the risk-free rate) by its standard deviation. The higher the Sharpe Ratio, the better the investment's return is relative to its risk.

The Sharpe Ratio is used to compare the performance of different investments or portfolios. It is particularly useful in evaluating the performance of investment managers, as it takes into account the level of risk they take to achieve their returns. A higher Sharpe Ratio indicates that the investment manager is generating higher returns for each unit of risk taken.

However, the Sharpe Ratio has some limitations. It assumes that returns are normally distributed, which may not always be the case. It also assumes that investors are risk-averse and prefer higher returns for lower risk, which may not always be true for all investors. Finally, the Sharpe Ratio only measures the risk-adjusted return of an investment, and does not take into account other factors such as liquidity or market conditions that may affect an investment's performance.
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