
What is Arbitrage?
Market Terms • 6 min
The percentage of our retail client accounts that were profitable in the last, most recent, four quarters was: | Q2-2026 : 29% | Q1-2025: 31% | Q4-2025: 29% | Q3-2025: 40%. Contracts for Difference (CFDs) are complex instruments with a high risk of losing money rapidly due to leverage and may not be suitable for all investors. You should not trade with money you cannot afford to lose. These percentages are for illustrative purposes only and do not indicate future performance.
A currency swap, or a cross-currency swap, is a contract between two parties to exchange interest payments and principal amounts in two different currencies at a pre-agreed rate of exchange. So, how does currency swap work? At the outset of the contract, the two parties exchange specific amounts of two currencies, and they then repay them according to a pre-agreed structure. Although considered derivatives, currency swaps are not used for speculation; rather they are utilised to lock in a fixed exchange rate or hedge against fluctuations. The payable interest rates are highly customisable. That is, they can be fixed, variable, or even both.
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There are two main types of cross-currency swaps: exchange of principal and exchange of interest. In the first case, two companies exchange principal amounts that determine their desired or agreed rate of foreign exchange. Let us look at a currency swap example here. A US Company A agrees to give a UK Company B $15,000,000 in exchange for £10,000,000. This effectively means that the GBPUSD exchange rate is or has been set at 1.5000. At the end of the contract length, the companies will pay back the principal amounts they owe each other. This will protect both companies from the risk of exchange rate fluctuations. However, both companies can agree to pay each other some interest rate values when the forex rate substantially changes during the life of the contract.
In the second case, two parties agree to exchange their interest rate payment obligations on underlying loans. There is no principal exchanged at the outset, and the two parties are in a legally binding contract independent of the underlying lenders. The interest rate payments can be fixed or variable. Companies can agree to exchange interest rate payments to reduce the cost of borrowing or to guard against other uncertainties related to the underlying principal amount.
In finance, a currency swap, also known as a cross-currency swap, is a legal contract between two parties to exchange two currencies at a later date, but at a predetermined exchange rate. In many cases, large financial institutions may facilitate currency swaps or participate as counterparties to manage their international currency exposure.
Currency swaps have always been very convenient in finance. They allow for the redenomination of loans or other payments from one currency to the other. This comes with various advantages for both individuals and companies. There is the flexibility to hedge the risk associated with other currencies as well as the benefit of locking in fixed exchange rates for a longer period of time. For large corporations, currency swaps offer the unique opportunity of raising funds in one particular currency and making savings in another. While currency swaps provide flexibility in hedging and financing, they still involve financial risks and should be managed carefully. Agreements may also be terminated early through negotiation.
In online forex trading, a swap is a rollover interest that you earn or pay for holding your positions overnight. The swap charge depends on the underlying interest rates of the currencies involved, and whether you are long or short on the currency pair involved. If you open and close a trade within the same day, swap interest will not apply. Depending on the interest rate differentials of the currencies involved, holding a forex position overnight may result in either a positive or negative swap adjustment. Swap-free accounts are also available for clients who require them. Basically, if you buy a high-yielding currency against a low-yielding one, you will earn positive swap interest, but note that it can also go the other way around.
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In the case of swaps being made by businesses and institutions the reason currency swaps are done is typically as a hedge, or as a way to get cheaper financing. For investors, a currency swap may be used to benefit from interest rate differentials between currencies, provided market movements remain favorable. So long as the movement in the pair is flat or advantageous to the trader, they can continue holding the pair while also collecting the swap, or the difference in interest rates between the two currencies.
While using a currency swap as a way to generate income can be useful, the greatest advantage of a currency swap for retail investors is the ability to hedge against volatility in the currency markets. With a currency swap an investor can reduce the volatility in their overseas holdings, thus improving their risk-return profile and smoothing out the ups and downs in their portfolio. Because currency rates are always changing currency swaps can help to smooth out profits and losses in any portfolio.
There are a few negatives that can also be associated with currency swaps. In the case of an investor hedging their position, any positive movement in the currency will be muted in the results of the investment because the hedge is protecting from volatility in both directions. Those holding a position to collect the swap could get wiped out by a sudden adverse movement in the currency pair. In the case of businesses doing swaps there is a credit and interest rate risk, particularly with swaps that stretch over several years.
In essence, a currency swap can be viewed at as an incentive to place long-term trades in the forex market. It is important to always learn about the markets as much as possible, because more knowledge translates to the ability to pinpoint the unlimited opportunities in forex trading.