Citigroup is a US financial services company and investment bank with headquarters in Manhattan, New York City. Founded in 1998 by the merger of financial giants Citicorp and Travelers, it’s now one of the largest banking institutions in the US and part of what’s known as the ‘Big Four’ in the US, with over $28.5tn assets under custody (AUC). The company operates in more than 160 countries and serves over 100 million customers around the world through its retail banking and wealth management divisions. Citigroup is also the parent company of Citibank, the consumer division of the holding company that focuses on commercial banking, credit cards, mortgages, and personal loans. It owns several regional subsidiaries under the same brand name. Citigroup stock is listed on the New York Stock Exchange and is a constituent of the S&P 500. Start spread betting or trading CFDs on our Citigroup share price. See also Admiral Group (LSE:ADM), Pershing Square Holdings (LSE:PSHD), Saga Group (LSE:SAGA), Schroders (LSE:SDR), Standard Chartered (LSE:STAN).