NYSE MKT LLC, formerly known as the American Stock Exchange (AMEX), is an American stock exchange situated in New York City, New York. AMEX was previously a mutual organization, owned by its members. Until 1953, it was known as the New York Curb Exchange. On January 17, 2008, NYSE Euronext announced it would acquire the AMEX for $260 million in stock; on October 1, 2008, NYSE Euronext completed the acquisition. Before the closing of the acquisition, NYSE Euronext announced that the AMEX would be integrated with the Alternext European small-cap exchange and renamed the NYSE Alternext U.S. In March 2009, NYSE Alternext U.S. was changed to NYSE Amex Equities. On May 10, 2012, NYSE Amex Equities changed its name to NYSE MKT LLC.
