The FTSE AIM UK 50 Index was introduced on 16 May 2005, and is a market-capitalisation-weighted stock market index. The index incorporates the largest 50 UK companies (by capitalisation) which have their primary listing on the

Alternative Investment Market AIM (formerly the Alternative Investment Market) is a sub-market of the London Stock Exchange that was launched on 19 June 1995 as a replacement to the previous Unlisted Securities Market, Unlisted Securities Market (USM) that had been in opera ...

(AIM). It includes UK domiciled companies only. The index is reviewed quarterly, and the constituent companies may change based on market capitalisation data as at the end of February, May, August and November. The index is maintained by

FTSE Russell FTSE Russell is a subsidiary of London Stock Exchange Group (LSEG) that produces, maintains, licenses, and markets stock market indices. The division is notable for the FTSE 100 Index in the UK and the Russell 2000 Index in the US, among others. ...

, a subsidiary of the

London Stock Exchange Group London Stock Exchange Group plc, also known as LSEG, is a global provider of financial markets data and infrastructure headquartered in London, England. It owns the London Stock Exchange (on which it is also listed), Refinitiv, LSEG Technol ...

References

British stock market indices FTSE Group stock market indices {{Stockexchange-stub

See also

References