London Stock Exchange | FTSE 100 | LSE | Footsie
London Stock Exchange
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The index is maintained by the FTSE Group, a now wholly owned subsidiary of the London Stock Exchange which originated as a joint venture between the Financial Times and the London Stock Exchange. It is calculated in real time and published every second when the market is open.
The FTSE 100 broadly consists of the largest 100 qualifying UK companies by full market value. Many of these are internationally focused companies, however, so the index’s movements are a fairly weak indicator of how the UK economy is faring – as seen with many of the recent swings corresponding to the value of sterling. A better indication of the UK economy is the FTSE 250, as it contains a smaller proportion of international companies.
FTSE 100 companies represent about 81% of the entire market capitalisation of the London Stock Exchange. Even though the FTSE All-Share Index is more comprehensive, the FTSE 100 is by far the most widely used UK stock market indicator. Other related indices are the FTSE 250 Index (which includes the next largest 250 companies after the FTSE 100), the FTSE 350 Index (which is the aggregation of the FTSE 100 and 250), FTSE SmallCap Index and the FTSE Fledgling Index. The FTSE All-Share aggregates the FTSE 100, FTSE 250 and FTSE SmallCap.
Component companies must meet a number of requirements set out by the FTSE Group, including having a full listing on the London Stock Exchange with a Sterling or Euro denominated price on the Stock Exchange Electronic Trading Service, and meeting certain tests on nationality, free float, and liquidity.
The constituent companies were criticised for their lack of diversity at the boardroom level in a 2014 study which found that more than half of them had no non-white board members, and two thirds did not have any executive directors from minorities.
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