Your Foreign Exchange Guide
Select Country
 
Forex Trading
Forex Information
Forex Structure
Beginners in the Forex
Rollovers in the Forex
Successful Trader
Forex Trade Mechanics
ECN vs. Market Maker

Forex Structure
The purpose of the foreign exchange market is to facilitate the trading of various currencies around the world. Although many different types of currency are exchanged, the majority of trades involve only a small number of them, including the U.S. Dollar, Yen, Euro, Swiss Franc, Pound Sterling, Australian Dollar, and Canadian Dollar. The U.S. Dollar is involved in over 90% of all exchanges on the forex markets. Contrary to popular belief, there is no one centralized market in which all currency trading occurs; rather, the foreign exchange is a loose conglomerate of several different markets, each of which has its own rules and regulations. Major markets are located in the U.S., London, and Tokyo, and each is open during different hours according to their time zones. Naturally, trading is heaviest when the market hours overlap, and almost two thirds of the trading activity at the New York market takes place during the morning while the European markets are still open.

Because there is no centralized market, a single exchange rate for a given currency does not exist. Because of the over-the-counter (OTC) nature of the markets, the bid and ask rates for a currency can vary among different geographic markets and market makers, although they are usually fairly close to each other. Since the price of a currency must be given in relation to another currency, it is expressed in the form XXX/YYY, where each trio of letters represents the international currency code. For example, the price of Euros in U.S. Dollars is written as EUR/USD. Traditionally, the first currency in the pair, called the base currency, is always the one that was strongest when the pair was created, and the other currency is known as the counter currency. The actual prices themselves are in decimal form, typically rounded to the nearest ten-thousandth of a unit.

One type of very short-term transaction is the spot transaction between two currencies, delivering over two days and using cash as opposed to a contract.

In a forward transaction, the money is not exchanged until an arranged date and an exchange rate is agreed in advance. The time period ranges from days to years. Currency swaps are a popular type of forward transaction; these involve the exchange of currency by two parties for an agreed length of time and an arrangement to swap currencies at an agreed later date. Another type is a foreign currency future, which is inclusive of interest. A standard contract is drawn up and a maturity date arranged. The time schedule is about three months.