FTSE 100 Index
The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" /ˈfʊtsi/, is a stock market index of 100 of the most highly capitalised blue chip companies listed on the London Stock Exchange.
FTSE 100 Index from 1984 to 2023 | |
| Foundation | 3 January 1984 |
|---|---|
| Operator | FTSE Russell |
| Exchanges | London Stock Exchange |
| Trading symbol |
|
| Constituents | 100 |
| Type | Large-cap |
| Market cap | £1.912 trillion (Jan 2024) |
| Weighting method | Capitalisation-weighted |
| Related indices | |
| Website | official website |
| Reuters | .FTSE |
| Bloomberg | UKX:IND |
The index consists of 32 sectors, three of which have a market cap exceeding £200 billion as at 27 February 2024. These are pharmaceuticals, oil & gas and banking services, which together account for approximately 34% of the index's market cap. At the same date there were four companies with a market cap exceeding £100 billion: Shell, AstraZeneca, HSBC and Unilever, which together account for approximately 25% of the market cap.
Each calendar quarter, the FTSE's constituents are reviewed and some companies will either exit or enter the index, resulting in irregular trading volume and price changes as market participants rebalance their portfolios.