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 on May 24, 1991. At the time it closed “because of slumping silver and gold prices and waning investor interest,” it was the smallest stock exchange in the United States. It was the smallest of seven regional “penny stocks” market. At the time of its closure it had a reputation as a haven for trading speculative penny stocks, almost exclusively in mining metals stocks of the Silver Valley in nearby north Idaho. 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