曹同学2024-07-12 14:17:02
第七问,我记得讲义课上老师说特殊情况下主动股份和主动风险的关系,比如石油石化,一个多1%,一个空1%,主动风险为0,但有主动股份,这里他计算的时候不是用的Wp-Wb这个公式,而是简单的(1+1)/2=1,但是如果要是按Wp-Wb这个公式,是没有主动股份的
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Simon2024-07-16 15:20:28
同学,上午好。
这道题原本是有1%的active share:对应原文Fund 3 held active positions in two automobile stocks—one was overweight by 1 percentage point (pp)
然后,fund 3 进行了2笔交易,1笔是调回benchmark权重,此时没有active share(Fund 3 traded back to benchmark weights on those two stocks),然后第2笔是 Fund 3 selected two different stocks that were held at benchmark weights, one energy stock and one financial stock. Fund 3 overweighted the energy stock by 1pp and underweighted the financial stock by 1pp. 此时active share又变成了1%,所以说active share没变。
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