绩效指标
风险调整收益

Sharpe Ratio

Definition

Sharpe Ratio是一种风险调整指标,衡量投资每单位总风险所获得的超额收益。Sharpe Ratio越高表明风险调整后的业绩越好,通常认为1以上的值较为理想。

Formula

Sharpe Ratio=RpRfσp\text{Sharpe Ratio} = \frac{R_p - R_f}{\sigma_p}

Where:

  • RpR_p = Portfolio return
  • RfR_f = Risk-free rate
  • σp\sigma_p = Standard deviation of portfolio returns

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Sharpe Ratio Definition & Formula · PortfolioMetrics