What is Foreign Exchange Trading
By Jake Bugoda
What is Currency Exchange?
Currency exchange is the trading of one currency against another. Professionals refer to this as foreign exchange, but may also use the acronyms Forex or FX.
Currency Exchange Rates and Spreads
Currency exchange rates are determined by the currency exchange market. (The currency exchange market is described further below.) A currency exchange rate is always quoted for a currency pair using ISO code abbreviations. For example, EUR/USD refers to the two currencies Euro (the European currency) and U.S. Dollar. The first is referred to as the base currency, while the second as the quote currency. The EUR/USD exchange rate specifies how many US Dollars you have to pay to buy one Euro, or conversely how many US Dollars you obtain when you sell one Euro. More generally, if buying, an exchange rate specifies how much you have to pay in the quote currency to obtain one unit of the base currency, and if selling, the exchange rate specifies how much you get in the quote currency when selling one unit of the base currency.
A currency exchange rate is typically given as a pair consisting of a bid price and an ask price. The ask price applies when buying a currency pair and represents what has to be paid in the quote currency to obtain one unit of the base currency. The bid price applies when selling and represents what will be obtained in the quote currency when selling one unit of the base currency. The bid price is always lower than the ask price.
In the currency market, the following abbreviation for the currency exchange rate pair is used:
The first component (before the slash) refers to the bid price (what you obtain in USD when you sell EUR), and in this case includes four digits after the decimal point. The second component (after the slash) is used to obtain the ask price (what you have to pay in USD if you buy EUR). The ask price is obtained by increasing the first component until the last two decimal places are equal to the digits in the second component. In this example, the ask price is 0.8428. As another example, 0.8498/03 refers to a bid price of 0.8498 and an ask price of 0.8503. (Note that for some exchange rates it is customary to quote rates in units of 100, as is the case with USD/JPY.)
The difference between the bid and the ask price is referred to as the spread. When trading large amounts of $1M or higher, the spread obtained in a quote is typically 5 basis points or PIPs, with each basis point referring to 0.0001 (or 0.01 when, say, the Yen is involved). In the example above, the spread is 0.0005 or 5 PIPs. When trading smaller amounts, the spread may be larger; for example, when trading less than $100,000, spreads of 50-200 PIPs are common. Credit card companies typically apply a spread of 200-300 PIPs. Banks and exchange bureaus typically use a spread in the range of 200-1000 PIPs (in addition to charging a commission). For investors and speculators, a lower spread translates into easier profit taking due to movements in exchange rates.
The Currency Exchange Market
The currency exchange market is an inter-bank or inter-dealer market that was established in 1971 when floating exchange rates began to materialize. In addition, it is an Over-The-Counter market, meaning that transactions are conducted between any two counter parties that agree to trade via the telephone or electronic network. Trading is thus not centralized, as is the case with many stock markets (i.e., NYSE, ASE, CME) or as the case for currency futures and currency options, which trade on special exchanges. Dealers often "advertise" exchange rates using a distribution network, such as the one provided by Reuters or Bridge. Dealers then use the information obtained there (or directly) to "agree" to a rate and a trade.
The major dealing centers today are: London, with about 30% of the market, New York, with 20%, Tokyo, with 12%, Zurich, Frankfurt, Hong Kong and Singapore, with about 7% each, followed by Paris and Sydney with 3% each.
In terms of trading volume, the currency exchange market is the worlds largest market, with daily trading volumes in excess of $1.5 trillion US dollars. This is orders of magnitude larger than the bond or stock market. For example, the New York Stock Exchange has a daily trading volume of approximately $60 billion. Thus, the currency exchange market is by far the most liquid market in the world today. Because of the volume in trading, it is impossible for individuals or companies to affect the exchange rates. In fact, even central banks and governments find it increasingly difficult to affect the exchange rates of the most liquid currencies, such as the US dollar, Japanese Yen, Euro, Swiss Frank, Canadian Dollar or Australian Dollar.
The currency exchange market is a true 24-hour market, 5 days a week. There are dealers in every major time zone. Trading begins Monday morning in Sydney (which corresponds to 3pm EST, Sunday) and then daily moves around the globe through the various trading centers until closing Friday evening at 4:30pm EST in New York.
Today, over 85% of all currency exchange transactions involve a few major currencies: the US Dollar (USD), Japanese Yen (JPY), Euro (EUR), Swiss Frank (CHF), British Pound (GBP), Canadian Dollar (CAD), and Australian Dollar (AUD). In the currency exchange market, most of the currencies are traded only against the US Dollar. The term cross rate refers to an exchange rate between two non-dollar currencies. Trading between two non-dollar currencies usually occurs by first trading one against the US Dollar and then trading the US Dollar against the second non-dollar currency. Because of this, the spread in the exchange rate between two non-dollar currencies is often higher. (There are a few non-dollar currencies that are traded directly, such as GBP/EUR or EUR/CHF.) The following directly traded currency pairs make up the vast majority of the trading volume and are thus considered to be the most important ones: EUR/USD, USD/JPY, EUR/JPY, USD/CAD, EUR/GBP, GBP/USD, USD/CHF, AUD/USD, and AUD/JPY.
How currency trading is done traditionally
Currency trading is always done with currency pairs, such as EUR/USD, and so it is useful to consider the currency pair as an instrument, which can be bought or sold.
• Buying the currency pair implies buying the first, base currency and selling (short) an equivalent amount of the second, quote currency (to pay for the base currency). (It is not necessary for the trader to own the quote currency prior to selling, as it is sold short.) A speculator buys a currency pair, if she believes the base currency will go up relative to the quote currency, or equivalently that the corresponding exchange rate will go up.
• Selling the currency pair implies selling the first, base currency (short), and buying the second, quote currency. A speculator sells a currency pair, if she believes the base currency will go down relative to the quote currency, or equivalently, that the quote currency will go up relative to the base currency.
After buying a currency pair, the trader will have an open position in the currency pair. Right after such a transaction, the value of the position will be close to zero, because the value of the base currency is more or less equal to the value of the equivalent amount of the quote currency. In fact, the value will be slightly negative, because of the spread involved.
In todays currency market, a trade goes through a three-step process:
1. the trader communicates the currency pair and the amount he/she would like to trade with another dealer.
2. the dealer responds with a bid and an ask price
3. the trader responds to the bid and ask price with one of:
a. buy (by saying "Mine" or "I buy" or "I take")
b. sell (by saying "yours" or "I give you" or "I sell")
The transaction occurs if the final response is either a buy or a sell. The dealer is required to quote a "good" market price, since he does not know whether the trader will buy or sell.
The currency exchange market described above is referred to as the spot market and the transaction described is referred to as a spot deal. A spot deal consists of a bilateral contract between a party delivering a specified amount of a given currency against receiving a specified amount of another currency from a second counter party, based on an agreed exchange rate, within two business days of the deal date, which is referred to as the settlement date. (The settlement date for USD/CAD is one business day after the deal date.) Speculators rarely deliver, however. Instead, they use what is referred to as a rollover swap. The rollover swap is designed to allow the changing of an old deal date to the current date by simultaneously closing an open position for todays date and opening the same position for the next day at a price reflecting the interest rate differential between the two currencies.
When a trader buys or sells a currency pair, the value of the currency pair, as an instrument, initially is close to zero. This is because (in the case of a buy) the quote currency is sold to buy an equivalent amount of the base currency. As the market rates fluctuate, however, the value of the currency pair position held will also fluctuate. Thus, if the rate for the currency pair goes down, the speculators long position will lose in value and become negative. To ensure that the speculator can carry the risk for the case where the position results in a loss, banks or dealers typically require sufficient collateral to cover those losses. This collateral is typically referred to as margin.
To limit down-side risk, traders often specify a Stop-Loss rate for each open trade. The Stop-Loss specifies that the trade should be closed automatically when the currency exchange rate for the currency pair in question reaches a certain threshold. For long positions, the Stop-Loss rate is always lower than the current exchange rate; for short positions, it is always higher. Traders, at times, also specify a Take-Profit rate for their trades in order to lock in a profit when the exchange rate reaches a certain threshold. For long positions, the Take-Profit rate must be above the current rate, while for short positions, it must be below the current rate.
A trader may also leave an order with a bank, broker or dealer. These so called leave orders are orders that a trade should be executed (in the future) when certain market conditions occur. There are three types of leave orders:
1. entry orders: specifies that a currency pair should be traded when it reaches a certain exchange rate. Entry orders are used when the trade would not offset a current position.
2. take-profit orders: are used to clear a position by buying (or selling) the currency pair of the position when the exchange rate reaches a specified level.
3. stop-loss orders: are used to clear a position by buying (or selling) the currency pair of the position when the exchange rate reaches a specified level.
You can learn more about this topic and others like it by visiting http://www.mathematicalforex.com
About the Author
Jake Bugoda is a seasoned Investment Representative who has worked with brokerage houses like AG Edwards and Merrill Lynch. He is now an independent Investment Consultant.
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