The London Stock Exchange Group (LSEG) is a global financial markets infrastructure company based in London, England. It operates the London Stock Exchange, one of the oldest and largest stock exchanges in the world, facilitating the buying and selling of shares and other securities. LSEG also provides various services, including market data, trading platforms, and clearing services. In addition to the stock exchange, LSEG has expanded its operations through acquisitions, including the purchase of Refinitiv, a major provider of financial market data. This diversification allows LSEG to offer a wide range of financial services and enhance its position in the global financial market.