Buying and Selling Currencies

Regarding the specifics of buying and selling on forex, it is important to note that currencies are always priced in pairs. All trades result in the simultaneous purchase of one currency and the sale of another. This necessitates a slightly different mode of thinking than what you might be used to. While trading on the forex, you would execute a trade only at a time when you expect the currency you are buying to increase in value relative to the one you are selling. If the currency you are buying does increase in value, you must sell the other currency back in order to lock in a profit. An open trade (or open position), therefore, is a trade in which a trader has bought or sold a particular currency pair and has not yet sold or bought back the equivalent amount to close the position.

Base and Counter Currencies and Quotes

Currency traders must become familiar also with the way currencies are quoted. The first currency in the pair is considered the base currency; and the second is the counter or quote currency. Most of the time, U.S. dollar is considered the base currency, and quotes are expressed in units of US$1 per counter currency (for example, USD/JPY or USD/CAD). The only exceptions to this convention are quotes in relation to the euro, the pound sterling and the Australian dollar - these three are quoted as dollars per foreign currency.

Forex quotes always include a bid and an ask price. The bid is the price at which the market maker is willing to buy the base currency in exchange for the counter currency. The ask price is the price at which the market maker is willing to sell the base currency in exchange for the counter currency. The difference between the bid and the ask prices is referred to as the spread.

The cost of establishing a position is determined by the spread, and prices are always quoted using five numbers (for example, 134.85), the final digit of which is referred to as a point or a pip. For example, if USD/JPY was quoted with a bid of 134.85 and an ask of 134.90, the five-pip spread is the cost of trading this position. From the very start, therefore, the trader must recover the five-pip cost from his or her profits, necessitating a favorable move in the position in order simply to break even.

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