Philadelphia Stock Exchange options, and a number of FX options. The PHLX has more than 16% of United States market share in exchange-listed stock and ETF options trading. The exchange's normal trading sessions are from 9:30 am to 4:00 pm on all days of the week except Saturdays, Sundays and holidays declared by the exchange in advance. 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
Spokane Stock Exchange Spokane Stock Exchange The Spokane Stock Exchange was a regional stock exchange in the northwest United States, located in Spokane, Washington. Founded mainly to trade stock of mining companies, it began operations in 1897 and closed 94 years later on May 24, 1991. Founded mainly to trade stock of mining companies, it began operations in 1897. Peyton Building was the headquarters of the Spokane Stock Exchange. Trading volume peaked in the early 1980s at $100 million, although by 1985, trading was rarely over $50,000 a day. After failed attempts by the board to find an investor or buyer, it closed