The UK equity market is the system through which shares in companies are traded. It’s the mechanism investors use to buy and sell shares of publicly listed companies. The UK equity market is one of the largest globally, with over 1,000 listed companies and a market capitalization of over £1 trillion. The market comprises two main segments: the investment market, where investors buy and sell securities, and the secondary market, which provides a mechanism for investors to buy and sell securities that have already been traded in the investment market.