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
Prague Stock Exchange and Central Securities Depository Prague (CSD Prague). PXE was founded in 2007 and is a trading platform for dealing in electricity for the Czech Republic, Slovakia and Hungary. CSD Prague has the principal position in the settlement of securities trades on the Czech capital market, maintains the central register for dematerialized securities issued in the Czech Republic, and assigns international securities identification numbers (ISIN) to investment instruments. PSE is a member of the CEE Stock Exchange Group (CEESEG), which also includes the Vienna Stock Exchange (Wiener Börse). Prague Stock Exchange Prague Stock Exchange (PSE) is the largest and oldest securities