The Foreign Exchange market, also called FOREX or FX, is the global currency trading market. With a daily volume of more than $5.3 trillion, it is the biggest and most exciting financial market in the world. Whether you sell EUR 100 to buy US dollars at the airport or a bank exchanges 100 million US dollars for Japanese yen with another bank, both of these are FOREX deals. The players on the FOREX market range from huge financial organizations, managing billions, to individuals trading a few hundred dollars.