Arbitrage is defined as the simultaneous buying and selling of currencies, commodities, or securities in various markets or in derivative forms, so as to take advantage of varying prices for the same asset. Conversely, forex arbitrage is the strategy of recognizing buying opportunities from the inefficiencies of pricing in the forex market. So, it can be said that in forex arbitrage, the trader makes money by exploiting the inequalities in currency pairs. Nevertheless, this type of trading strategy is generally risk-free; but you will still need to have skills and patience in order to implement it, especially now that electronic markets have become popular.
Anyway, forex arbitrage can be performed either by two-way or three-way arbitrage. Basically, two-way arbitrage is simple and easy to grasp. Three-way arbitrage, on the other hand, requires excellent calculation skills and vast knowledge on exchange rates. It is a lot more complicated, and therefore very difficult to comprehend. Also, it involves the usage of three different currencies to avoid losing money. Well, when one currency is used to buy another, there is a possibility that money will be lost during the trade. The second currency is used to leverage profits because the first trade usually does not net a profit.
You must also realize that every minute matters in this type of trading strategy because arbitrage opportunities tend to close very quickly. So once you come upon an arbitrage opportunity while trading, use it. However, you must not waste a lot of time in searching for arbitrage opportunities since they are very rare. They do not last long either. Nonetheless, investors still go for this type of strategy because they know that the values of currencies change everyday. They also know that leveraging against currency option fluctuations can bring in huge gains. It is really a quick way to make profits; and if you take on the brokerage house method, both houses will benefit. Therefore, it will result in a win-win situation.