Philadelphia Stock Exchange Philadelphia Stock Exchange Philadelphia Stock Exchange (PHLX), now known as NASDAQ OMX PHLX, is the oldest stock exchange in the United States. It is now owned by The NASDAQ OMX Group. Founded in 1790, the exchange was originally named the Board of Brokers of Philadelphia, also referred to as the Philadelphia Board of Brokers. In 1875, the Board of Brokers changed its name to the Philadelphia Stock Exchange. The exchange merged with the Baltimore Stock Exchange in 1949 and was named the Philadelphia-Baltimore Stock Exchange. It merged with the Washington Stock Exchange in 1954, becoming known as the Philadelphia-Baltimore-Washington Stock
American Mining and Stock Exchange Badger was appointed chairman. The New York Mining Stock Exchange returned to 60 Broadway on July 26, 1877, on which day it also absorbed the members of the American Mining and Stock Exchange. American Mining and Stock Exchange The American Mining and Stock Exchange was a commodities and stock exchange in New York City. In 1877 it absorbed the competing New-York Open Gold and Stock Exchange. The New York Mining Stock Exchange absorbed the members of the American Mining and Stock Exchange, which had been operating for around fifteen months, on July 26, 1877. The American Mining and Stock Exchange