Banco Santander, S.A., doing business as Santander Group /ˌsɑːntɑːnˈdɛər/, is a Spanish banking group. As its name suggests, the company originated in Santander, Spain. The bank is listed in Madrid, New York, London, São Paulo, Milan, Buenos Aires, Mexico City, Warsaw and Lisbon. The group has expanded since 2000 through a number of acquisitions, with operations across Europe, South America, North America and Asia. Many subsidiaries, such as Abbey National, have been rebranded under the Santander name. The company is a component of the Euro Stoxx 50 stock market index. In May 2016, Santander was ranked as 37th in the Forbes Global 2000 list of the world's biggest public companies. Santander is Spain’s largest bank.