FTSE 100 Index


FTSE 100 Index

An index tracking the 100 publicly-traded companies listed on the London Stock Exchange with the most market capitalization. Like many other FTSE indices, it is calculated in real time, with prices updated every 15 seconds. Each quarter, the FTSE reevaluates the companies tracked on the index and makes necessary adjustments to ensure that it represents the most highly capitalized companies. The FTSE 100 Index is considered a prime indicator of health in the wider market.

FTSE 100 Index

A market-weighted index of the 100 leading companies traded in Great Britain on the London Stock Exchange. The Financial Times calculates several other indexes, although financial commentators typically refer to the FTSE 100 when they say "Footsie." The full name is Financial Times-Stock Exchange 100 Share Index.