How To Make $ Millions In Forex Trading. Global Forex trading is the foreign market exchange involving currencies of countries around the world, which is a $4 Trillions a day market, almost all countries in the world, is usually represented by a company or their biggest banks, participating in those activities. In the forex market, we will find that money is sold and bought based on the value of the currency at the time. This is done to create balance in the currency markets around the world. This activity is similar to the stock market in a country, but in a much larger scale because it involves almost all countries in the world. There are some countries, which became the main trade center as Tokyo, New York, or London, but on the other hand, there are several locations that do not occur trading. Currency prices in these activities are always changing and different every day.