FTSE indices

A leading measure for UK-listed blue chip companies since 1984

The FTSE 100 is a market-capitalisation weighted index of UK-listed blue chip companies. The index is part of the FTSE UK Index Series and is designed to measure the performance of the 100 largest companies traded on the London Stock Exchange that pass screening for size and liquidity. FTSE 100 Index constituents are all traded on the London Stock Exchange’s SETS trading system.


The index is designed for use in the creation of index tracking funds, derivatives and as a performance benchmark.


The index uses a transparent, rules-based construction process. Index rules are freely available on FTSE Russell’s website.


Stocks are selected and weighted to ensure practical index implementation into investment products.


The index is calculated based on price and total return methodologies, both real time intra-second and end-of-day.


Stocks are screened to ensure that investors can replicate the index.

Industry Classification Benchmark

Index constituents are categorised in accordance with the Industry Classification Benchmark (ICB®), a globally recognized standard for categorizing companies and securities, operated and managed by FTSE Russell.