Foreign exchange trading—also commonly called forex trading or FX—is the global market for exchanging foreign currencies. Forex is the largest market in the world, and the trades that happen in it affect everything from the price of clothing imported from China to the amount you pay for a margarita while vacationing in Mexico
Currencies are traded in the foreign exchange market, a global marketplace that’s open 24 hours a day Monday through Friday. All forex trading is conducted over the counter (OTC), meaning there’s no physical exchange (as there is for stocks) and a global network of banks and other financial institutions oversee the market (instead of a central exchange, like the New York Stock Exchange).