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
Edinburgh Stock Exchange sought by 1870, and the exchange moved to Craigie Hall in 1874, before returning to South St. David Street in 1880. In 1888 a new building was constructed on the site, which stood until it was replaced by a modern one in 1966. In 1964, the Edinburgh, Glasgow, Aberdeen and Dundee stock exchanges came together to form the Scottish Stock Exchange, while still continuing to trade locally in each city, but with Glasgow as the main branch. The Scottish Stock Exchange was closed in 1973, resulting in the closure of the Edinburgh Stock Exchange offices. More than three-quarters of Scottish