Knowing how the industry is mapped out is important, because the collective combination of all participants creates the market you trade in. The relative weight of the trading party to the market is measured by how much money that party manages – from billion dollar hedge funds and investment banks, to private traders with a few thousand dollars in action.
Forex is a portmanteau of foreign currency and exchange. Foreign exchange is the process of changing one currency into another currency for a variety of reasons, usually for commerce, trading, or tourism. According to a recent triennial report from the Bank for International Settlements (a global bank for national central banks), the average was more than $5.1 trillion in daily forex trading volume.