NO.PZ2023040301000068
问题如下：
Which of the following statements is most accurate with respect to rebalancing and reconstitution of security market indices?
选项：
A.Equal weighted indices require frequent rebalancing
Turnover within an index results from a reconstitution but not from rebalancing
A price-weighted index requires rebalancing more than a market-capitalizationweighted index
解释：
After an equal weighted index is constructed and the prices of constituent securities change, the index is no longer equally weighted. Therefore, maintaining equal weights requires frequent adjustments (rebalancing) to the index
请问B选项Turnover within an index是什么意思？
