The foreign exchange market (Forex) is a form of exchange for the global decentralized trading of international currencies. The exchange rate is just the price of one currency in terms of another currency. Currency markets are the world's largest financial market is traded daily. Financial centers around the world function as anchors of trading between a wide range of different types of buyers and sellers around the clock, with the exception of weekends. The foreign exchange market assists international trade and investment by enabling currency conversion.