NO.PZ2023010903000015
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.
is essentially a liquidity-weighted index.
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.
stock split怎么影响的？