American Stock Exchange AMEX

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Definition of 'American Stock Exchange AMEX'

AMEX is the American Stock Exchange. It is the third-largest stock exchange by trading volume in the United States. Located in New York City, it handles about 10% of all securities traded in the U.S.

Until 1921, AMEX was known as the Curb Exchange. It has recently merged with the NASDAQ.

Once a strong competitor to the NYSE, it now sees almost all its trading in small-cap stocks, exchange-traded funds and derivatives.

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