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
Los Angeles Stock Exchange Los Angeles Stock Exchange The Los Angeles Oil Exchange was a regional stock exchange in Los Angeles, California. Founded in 1899, in 1900 the name was changed to the Los Angeles Stock Exchange. In 1956, it merged into the Pacific Coast Stock Exchange. The Los Angeles Oil Exchange was organized in 1899 by a group of oil company owners, including Wallace Hardison. The Exchange’s first trading session was on February 1, 1900. In December 1900 the name was changed to the Los Angeles Stock Exchange. The Exchange absorbed the California Oil Exchange in September 1900 and the Los Angeles Nevada