Chicago Stock Exchange, Inc., a national securities exchange and self-regulatory organization, operates as a market place for the purchase and sale of equity securities. The company trades various securities, including NYSE, AMEX, and Nasdaq-listed stocks, as well as CHX-exclusive issues. It operates CHX Matching System, which provides executions for an array of securities; and CHXConnect, which offers routing services to order-sending participants to off-exchange market makers or other destinations. The company serves various participants, such as institutional brokers, order-sending firms, and market makers. Chicago Stock Exchange, Inc. was formerly known as Midwest Stock Exchange, Inc. The company was founded in 1882 and is based in Chicago, Illinois. Chicago Stock Exchange, Inc. operates as a subsidiary of CHX Holdings, Inc.