New York Stock Exchange (NYSE)

The New York Stock Exchange (NYSE) is one of the two securities exchanges operated by the NYSE Group, Inc. It's the oldest securities exchange in the United States and the largest traditional exchange in the world.

Trading on the floor of the exchange is by double auction system, handled by floor brokers representing buyers and sellers, and by specialists -- one for each listed security.

NYSEArca, the other NYSE Group exchange, is an all-electronic market, where trading is direct and anonymous.