one of the organized stock markets with a centralized trading floor. in this market, auction-type trading allows traders to sell stocks to the highest bidder or buy stocks from the lowest supplier. These markers consist of the New York Stock Exchange and the American Stock Exchange, both of which are located in New York City. Also included are the regional stock exchanges found outside of New York City. These are the Boston, Cincinnati, Intermountain (Salt Lake City), Midwest (Chicago), Pacific (Los Angeles and San Francisco), Philadelphia (Philadelphia and Miami), and Spokane stock exchanges.