Forex, also known as foreign exchange or FX trading, is the conversion of one currency into another. It is one of the most actively traded markets in the world, with an average daily trading volume of $5 trillion. Forex trading works by simultaneously buying one currency while selling another. If the currency you bought increases in value against the currency you have sold, you can close your position for a profit. Forex trading consistently includes offering one money so as to purchase another. Consequently, they are cited two by two that shows which money is being purchased and which is being sold. Every money in the pair is recorded as its three letter code, which will in general be shaped of two letters that represent the area, and one representing the cash itself.