AIM 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 (USM) that had been in operation since 1980. It allows companies that are smaller, less-developed, or want/need a more flexible approach to governance to float shares with a more flexible regulatory system than is applicable on the main market.
At launch, AIM comprised only 10 companies valued collectively at £82.2 million. As at May 2021, 821 companies comprise the sub-market, with an average market cap of £80 million per listing.[2] AIM has also started to become an international exchange, often due to its low regulatory burden, especially in relation to the US Sarbanes–Oxley Act (though only a quarter of AIM-listed companies would qualify to be listed on a US stock exchange even prior to passage of the Sarbanes–Oxley Act).[3] By December 2005, over 270 foreign companies had been admitted to AIM.
SYMBOL...https://www.londonstockexchange.com/raise-finance/equity/aim