不加权或加权的指数的中文解释

计算股价指数的方法可分两种，即加权和不加权。不加权的指数以简单的算术平均法或几何平均法计算得出，而在加权指数中，成分股所占的权值大小不一，通常以股票的市值为加权基础。

Unweighted/Weighted Indices的英文解释

Stock indices are calculated in two ways, either weighted or unweighted. The unweighted indices are simple arithmetic or geometric averages. In the weighted indices certain stocks carry a greater weighting than others, usually based on their market value or capitalization.

• arithmetic [ə´riθmətik]   n.算术   (英语四级单词)