Forex (FX) is the market in which currencies are traded. The forex market is the largest, most liquid market in the world, with average trading values that can be trillions of dollars per day. There is no central marketplace for currency exchange; trade is conducted over the counter. The forex market is open 24 hours a day, five days a week, except for holidays, and currencies are traded worldwide among the major financial centres of London, New York, Tokyo, Zurich, Frankfurt, Hong Kong, Singapore, Paris and Sydney. The forex market is the largest market in the world in terms of the total cash value traded, and any person, form or country may participate in this market.