Stock market index
A stock market index is a listing of stock and a statistic reflecting the composite value of its components. It is used as a tool to represent the characteristics of its component stocks, all of which bear some commonality such as trading on the same stock market exchange, belonging to the same industry, or having similar market capitalizations. Many indices compiled by news or financial services firms are used to benchmark the performance of portfolios such as mutual funds.
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stock market index
Noun
1. index based on a statistical compilation of the share prices of a number of representative stocks
(synonym) stock index
(hypernym) index, index number, indicant, indicator
(hyponym) Dow Jones, Dow-Jones Industrial Average