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blend of American Express, trademark registered in U.S. 1950 by American Express Co., originally an express mail service. Its credit card dates from 1958.
Traditionally, the second largest stock exchange in the United States, after the New York Stock Exchange. The American Stock Exchange is in New York City. It is often identified in financial pages as AMEX. In 1998, AMEX merged with the NASD, which runs the NASDAQ exchange.