Forex, or the foreign exchange market (also called FX for short) is the marketplace where currencies are traded. At its simplest, a foreign exchange transaction might be, for example, when you transfer your local currency to a new one for an upcoming holiday. Across the market as a whole, an estimated 5.3 billion USD is traded every day between governments, banks, corporations, and speculators.

Unlike stocks, forex trades have low, if any, commissions and fees. Even so, new forex traders are always advised to take a conservative approach and use orders, like stop-loss, to minimize losses. High leverage, which should be prudently applied, gives traders the opportunity to achieve dramatic results with far less capital than necessary for other markets. Forex trading requires training and strategy, but can be a profitable field for individuals looking for a lower risk endeavor. Learning currency trading gives traders a range of exciting new opportunities to invest in.

For example, if you invested 5,000 EUR and lost 1,000 EUR, you will have lost 20% of your balance, leaving you with a final balance of 4,000 EUR. To bring your balance back to 5,000 EUR, you will need to make a profit of 1,000 EUR. However, with a starting balance of 4,000 EUR (after the previous loss), there is now a 25% gain, rather than a 20% one.
It is estimated that in the UK, 14% of currency transfers/payments are made via Foreign Exchange Companies.[65] These companies' selling point is usually that they will offer better exchange rates or cheaper payments than the customer's bank.[66] These companies differ from Money Transfer/Remittance Companies in that they generally offer higher-value services. The volume of transactions done through Foreign Exchange Companies in India amounts to about US$2 billion[67] per day This does not compete favorably with any well developed foreign exchange market of international repute, but with the entry of online Foreign Exchange Companies the market is steadily growing. Around 25% of currency transfers/payments in India are made via non-bank Foreign Exchange Companies.[68] Most of these companies use the USP of better exchange rates than the banks. They are regulated by FEDAI and any transaction in foreign Exchange is governed by the Foreign Exchange Management Act, 1999 (FEMA).

Currency carry trade refers to the act of borrowing one currency that has a low interest rate in order to purchase another with a higher interest rate. A large difference in rates can be highly profitable for the trader, especially if high leverage is used. However, with all levered investments this is a double edged sword, and large exchange rate price fluctuations can suddenly swing trades into huge losses.

Forex is a portmanteau of foreign currency and exchange. Foreign exchange is the process of changing one currency into another currency for a variety of reasons, usually for commerce, trading, or tourism. According to a recent triennial report from the Bank for International Settlements (a global bank for national central banks), the average was more than $5.1 trillion in daily forex trading volume.