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.
Boston Stock Exchange 2007, NASDAQ acquired the BSE. Boston Stock Exchange The Boston Stock Exchange (now NASDAQ OMX BX, formerly "BSE") is a regional stock exchange located in Boston, Massachusetts. The third-oldest stock exchange in the United States, it was founded in 1834. On October 2, 2007, NASDAQ agreed to acquire BSE for $61 million. The Boston Stock Exchange was founded in 1834. In 2002, the BSE co-founded with the Montreal Exchange (MX), a derivatives exchange and Interactive Brokers, a discount brokerage, the Boston Options Exchange (BOX), an automated equity options exchange. In 2007, controlling interest in the BOX was sold to MX