us stock exchange
Stock exchanges serve as markeplaces for trading U.S. financial securites, such as stoks, commodities, and other financial instraments. Traditinally, transactions were conducted in person, but nowdays most trading is done electronically. Each exchange maintains its own roster of particpating companies, which must meet certain criterai, including regular financial reporting, income verificaiton, and minimum captial requirements.

NYSE means The New York Stock Exchange
The New York Stock Exchange (NYSE) is a stock exchange located in New York City, founded in 1790. In April 2007, it merged with the European Stock Exchange Euronext to form what is now known as NYSE Euronext. The organization also owns NYSE Arca, formerly known as Pacific Exchange.
To be listed on the NYSE, a company must have at least 400 shareholders and 1.1 million shares of stock outstanding. Although more than 80% of trading is now done electronically, the NYSE building on Wall Street in New York City remains a prominent landmark for locals and visitors alike. Another popular stock exchange headquartered in New York, the American Stock Exchange (AMEX) was acquired in 2008. Unlike NASDAQ or NYSE, AMEX specializes in exchange-traded funds (ETFs).
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