Stock Market Indices

A stock market index is a collection of shares, arranged into an order - usually grouped by size of the company (market capitalisation) or by the stock market on which it is traded (in the UK, on the London Stock Exchange, this is the MAIN or AIM markets).

Well known market indexes include the FTSE 100, FTSE 250, and FTSE 350. Due to prohibitive licensing restrictions imposed by FTSE (originally Financial Times Stock Exchange), which is now part of the London Stock Exchange, we are unable to show the FTSE 100 values, or any other FTSE indexes, values or constituents - however, we show almost identical indexes such as the UK 100, UK 250, and UK 350. These are calculated in a very similar way to the FTSE indexes, and allow investors to understand the relative sizes of the shares in each index.