陈同学2021-10-13 02:38:53
老师,active share的大小是不是取决于两个方面: 1)持仓是否concentrated: If two portfolios with the same benchmark invest only in benchmark securities, the portfolio with the fewer securities and therefore higher degree of concentration in positions will have a higher level of active share. 2)net factor exposure: 如果两个portfolio持仓的concentration程度相同,那么是不是那个偏离benchmark的risk factors越多的portfolio的active share 越大?
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开开2021-10-13 17:38:09
同学你好,对的,持股越集中的组合active share越高。如果集中度相似,那么在因子上比较集中的组合active share也比较高,例如,同样是diversified portfolio,diversified factor bets的active share就比 multi-factor(diversified factor exposure)的高。
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