What is the forex ? The Foreign Exchange market, also referred to as the "Forex" or FX market, is the largest financial market in the world, with a daily average turnover of well over US$1 trillion -- 30 times larger than the combined volume of all U.S. equity markets. Unlike other financial markets, the forex market has no physical location or central exchange. It is an over-the-counter market where buyers and sellers including banks, corporations, and private investors conduct business. A true 24-hour market, currency trading begins each day in Sydney, and moves around the globe as the business day begins in each financial center, first to Tokyo, London, and New York.the unmatched liquidity and around-the-clock global activity make forex the ideal market for active traders.