FTSE 100’s Record Run: Inside London’s Blue-Chip Rally and What’s Next
What Is the FTSE 100 Index? The FTSE 100 (Financial Times Stock Exchange 100) is the flagship stock index of the London Stock Exchange, tracking the 100 largest companies by market capitalization listed in the UK. Often called the “Footsie,” it serves as a barometer of British large-cap equities. The index is market-cap weighted, meaning each company’s influence on the index is proportional to its market value (adjusted for free-float shares) theguardian.com. In practical terms, bigger companies like Shell or HSBC move the FTSE 100 far more than smaller constituents. The FTSE 100 is maintained by FTSE Russell (part of London Stock Exchange Group) and
