薛同学2022-11-14 20:08:14

B is correct. Active share changes only if the total of the absolute values of the portfolio’s active weights changes. For the two trades in Fund 3, both the initial position and the new position involved two stocks such that one was 1pp underweighted and the other was 1pp overweighted. Although the active weights of particular securities did change between the initial position and the new position, the total absolute active weights did not change. Therefore, the portfolio’s active share did not change 第一个交易完成后 两个 股票 的 权重 和 benchmark一致，所以 active share不变， 这个 可以 理解 ，但是 第二个 交易一个 超配了 1pp，另一个 低配了 1pp，avtive share不是 1pp吗 ？再就是 怎么 理解 Active share changes only if the total of the absolute values of the portfolio’s active weights changes.这句话