ShirleyWan2022-05-30 01:39:52
In previous exams, we call alpha the excess return. But now in L3V3 P308, we call alpha the active return from the skills and management from the portfolio manager. Which one should I follow? And how should I differentiate total active return from the active return solely from portfolio manager?
回答(1)
开开2022-05-31 14:37:03
同学你好,在三级权益中,excess return和active return一般是等价的,都是Rp-RB。而alpha是active return部分无法被factor weighting解释的部分,我们认为是基金经理特有的能力或策略所带来的。
从计算的角度来看,RA减去由factor weighting带来的收益后剩下的,就是alpha。
但需注意的是,有时候excess return也是是RP减去无风险收益率,这个要具体看题目的表述。
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