The Forex market is a place where all currencies are traded. However, the volume of trade conducted in different currencies varies greatly. As a result, despite the fact that there are hundreds of currencies in the world, approximately two-thirds of the massive $4 trillion dollar Forex volume is transacted in just four currency pairs! These four currency pairs are known as the major currencies. The movement of these pairs is the most closely watched metric in the Forex market and is regarded as the market's overall barometer. When currency experts talk about the Forex market rising or falling in general, they are referring to these pairs. In this article, we'll take a closer look at the four most important currency pairs.