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Thirty-Share Index UK US noun [singular] (also FTSE 30 Share Index, also FTSE 30 Index)
► STOCK MARKET a series of numbers published by the Financial Times newspaper that shows the changing average value of the share prices of thirty large British companies on the London Stock Exchange: »
The endowment investment is linked to the performance of the Thirty-Share Index.
Financial and business terms. 2012.