陈同学2021-08-27 01:32:59

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？