问题如下:
Which of the following index weighting methods requires the most frequent rebalancing?
选项:
A.Price weighting.
B.Equal weighting.
C.Market-capitalization weighting.
解释:
B is correct.
Changing market prices will cause weights that were initially equal to become unequal, thus requiring rebalancing.
考点:等权重指数的优缺点
等权重法假设每只股票买相同的金额,所以股价一变,权重就变了。股价通常变动很频繁,因此该方法需要调整至目标权重的频率最高。
虽然对了但还是有些不清楚,price不是也一直在变动中,那为何price不是rebalancing periodically.