基准比较指标

Alpha

Definition

Alpha代表投资组合超出基于其Beta和基准(市场)收益所预期水平的超额收益。

Formula

α=Rp(βRb)\alpha = R_p - (\beta \cdot R_b)

where RpR_p is the portfolio actual return, RbR_b is the benchmark (market) return, and β\beta is the portfolio beta.

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Alpha Definition & Formula · PortfolioMetrics