Longman Dictionary English From Longman Dictionary of Contemporary EnglishFT 100 Share Index, thethe FT 100 Share IndexFT 100 Share In‧dex, the /ˌef tiː wʌn ˌhʌndrəd ˈʃeər ˌɪndeks/ (also the FTSE 100 /ˌfʊtsi wʌn ˈhʌndrəd/, the Footsie) the Financial Times Stock Exchange 100 Index; a number that shows whether shares in companies on the London stock exchange have generally risen or fallen in value on a particular day. The number is based on the share prices of 100 large and important companies The FT 100 Share Index closed at 5124, down 40 points on the day. → Dow Jones Average, Hang Seng Index, the, Nikkei index, the ldoceonline.com