Being the world wide hub for trading currencies, this decentralized market which operates from all major financial hubs of the country has indeed made many anchors to trade which include a wide range of buyers as well as sellers all around the clock. This is the market which actually determines the relative power and value of all currencies which float all around the world.
Assistance in investments and international trade is the primary purpose of Forex. This is made possible by converting one currency to another. Even direct speculation in currency value is also a part of the same market.