market-share weighted index

market-share weighted index
An index where the impact of a stock price change depends upon the market-share that stock controls. For example, a stock with a large market share, such as IBM with over 600 million shares outstanding, would have a greater impact on a market-share weighted index than a stock with a small market-share, such as Foster Wheeler, with approximately 34 million shares outstanding. The CENTER ONLINE Futures Glossary

Financial and business terms. 2012.

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