Forex

Forex is an international currency market where people can trade with the monetary flow derived from international trade.

In the foreign exchange market known as forex FX or Currency Market, it is a global and decentralized market in which currencies are traded.
preliminary global results from the 2016 Triennial Banking Market Foreign Exchange and Derivatives Trading Survey show that trading in foreign exchange markets averaged $ 5.09 trillion per day in April 2016.

This is lower than $ $5.4 trillion in April 2013, but compared to $4.0 trillion in April 2010. Measured by value, foreign exchange traded more than any other instrument in April 2016, at $2.4 trillion per day, followed by spot trading at $1.7 trillion