但实际中

问题如下：

Which of the following rebalancing method do we use to maintain consistency with the index's weighting method?

选项：

A.

Periodically adjusting the type of constituent securities.

B.

Periodically adjusting the constituent securities.

C.

Periodically adjusting the weights of constituent securities.

解释：

C is correct.

Rebalancing an index is the process of periodically adjusting the constituent securities’ weights to maintain consistency with the index’s weighting method.

考点：Rebalance and reconstitution

这道题考察的是Rebalance的定义。问下列哪一种调整方法是为了与指数构建方法要求的权重保持一致。

A. 定期调整成分股的种类。错。没有这种调整。

B.定期调整成分股（即reconstitution）。错，我们做reconstitution是为了保持指数中的成分股与其宣称的风格准保持一致。

C定期调整成分股的权重。正确。