Thirty-Share Index
noun[singular]
ukus(alsoFTSE 30 Share Index);(alsoFTSE 30 Index)STOCK MARKET
aseriesofnumberspublishedby the Financial Timesnewspaperthatshowsthechangingaveragevalueof thesharepricesof thirtylargeBritishcompanieson the London Stock Exchange:
Theendowmentinvestmentislinkedto theperformanceof the Thirty-Share Index.