Philadelphia Stock Exchange that the tax was illegal, and the PHLX moved its trading floor back to its headquarters in the city. In 1981, the exchange moved to 19th and Market, where it stayed until 2017 when it moved to its current location in the newly built FMC Tower. The exchange merged with the Baltimore Stock Exchange in 1949. The exchange was then named the Philadelphia-Baltimore Stock Exchange. The Baltimore Stock Exchange then migrated out of its Baltimore Stock Exchange Building, later renamed the Totman Building, to a new home base in Philadelphia. The exchange merged with the Washington Stock Exchange in 1954.
Chicago Stock Exchange Chicago Stock Exchange The Chicago Stock Exchange (CHX) is a stock exchange in Chicago, Illinois. The exchange is a national securities exchange and Self-Regulatory Organization, which operates under the oversight of the U.S. Securities and Exchange Commission (SEC). The Chicago Stock Exchange is currently located at 440 South LaSalle Street (FOUR40). Founded on March 21, 1882, in 1949, the Chicago Stock Exchange merged with the regional stock exchanges St. Louis Stock Exchange, Cleveland Stock Exchange and Minneapolis-St. Paul Stock Exchange to form the Midwest Stock Exchange. In 1959, the New Orleans Stock Exchange became part of the Midwest Stock Exchange,