选项b, liquidity-weighted index是指什么呢？

问题如下：

McMahon observes that the benchmark used for the US large-cap equity component is a price-weighted index containing 150 stocks.

The initial benchmark used for the US large-cap allocation:

选项：

A.

is unaffected by stocks splits.

B.

is essentially a liquidity-weighted index.

C.

holds the same number of shares in each component stock

解释：

The initial benchmark used for the US large-cap allocation is a price-weighted index. In a price-weighted index, the weight of each stock is its price per share divided by the sum of all the share prices in the index. As a result, a price-weighted index can be interpreted as a portfolio composed of one share of each constituent security.