A currency swap (or cross currency swap) is a foreign exchange agreement between two parties to exchange a given amount of one currency for another and, after a specified period of time, to give back the original amounts swapped.

Structure

Currency swaps can be negotiated for a variety of maturities up to 30 years. Unlike a back-to-back loan, a currency swap is not considered to be a loan by United States accounting laws and thus it is not reflected on a company's balance sheet. A swap is considered to be a foreign exchange transaction (short leg) plus an obligation to close the swap (far leg) being a forward contract.

Unlike interest rate swaps, currency swaps involve the exchange of the principal amount. Interest payments are not netted (as they are in interest rate swaps) because they are denominated in different currencies. See also John Hull.
 
Uses

Currency swaps are often combined with interest rate swaps. For example, one company would seek to swap a cash flow for their fixed rate debt denominated in US dollars for a floating-rate debt denominated in Euro. This is especially common in Europe where companies "shop" for the cheapest debt regardless of its denomination and then seek to exchange it for the debt in desired currency.

For example, suppose a U.S.-based company needs to acquire Swiss francs and a Swiss-based company needs to acquire U.S. dollars. These two companies could arrange to swap currencies by establishing an interest rate, an agreed upon amount and a common maturity date for the exchange. Currency swap maturities are negotiable for at least 10 years, making them a very flexible method of foreign exchange.Currency swaps were originally done to get around exchange controls.


Interest rate swap

An interest rate swap is a derivative in which one party exchanges a stream of interest payments for another party's stream of cash flows. Interest rate swaps can be used by hedgers to manage their fixed or floating assets and liabilities. They can also be used by speculators to replicate unfunded bond exposures to profit from changes in interest lates. As such, interest rate swaps are very popular and highly liquid instruments.

Types

Being OTC instruments interest rate swaps can come in a huge number of varieties and can be structured to meet the specific needs of the counterparties. That said, by far the most common are fixed-for-fixed, fixed-for-floating or floating-for-floating. The legs of the swap can be in the same currency or in different currencies. (A single-currency fixed-for-fixed rate swap is generally not possible; since the entire cash-flow stream can be predicted at the outset there would be no reason to maintain a swap contract as the two parties could just settle for the difference between the present values of the two fixed streams; the only exceptions would be where the notional amount on one leg is uncertain or other esoteric uncertainty is introduced).

Fixed-for-floating rate swap, same currency Party P pays/receives fixed interest in currency A to receive/pay floating rate in currency A indexed to X on a notional N for a term of T years. For example, you pay fixed 5.32% monthly to receive USD 1M Libor monthly on a notional USD 1 million for 3 years. The party that pays fixed and receives floating coupon rates is said to be long the interest swap.

Fixed-for-floating swaps in same currency are used to convert a fixed rate asset/liability to a floating rate asset/liability or vice versa. For example, if a company has a fixed rate USD 10 million loan at 5.3% paid monthly and a floating rate investment of USD 10 million that returns USD 1M Libor +25 bps monthly, it may enter into a fixed-for-floating swap. In this swap, the company would pay a floating USD 1M Libor+25 bps and receive a 5.5% fixed rate, locking in 20bps profit.

Fixed-for-floating rate swap, different currencies

Party P pays/receives fixed interest in currency A to receive/pay floating rate in currency B indexed to X on a notional N at an initial exchange rate of FX for a tenure of T years. For example, you pay fixed 5.32% on the USD notional 10 million quarterly to receive JPY 3M (JIBOR) monthly on a JPY notional 1.2 billion (at an initial exchange rate of USDJPY 120) for 3 years. For nondeliverable swaps, the USD equivalent of JPY interest will be paid/received (according to the FX rate on the FX fixing date for the interest payment day). No initial exchange of the notional amount occurs unless the Fx fixing date and the swap start date fall in the future.

Fixed-for-floating swaps in different currencies are used to convert a fixed rate asset/liability in one currency to a floating rate asset/liability in a different currency, or vice versa. For example, if a company has a fixed rate USD 10 million loan at 5.3% paid monthly and a floating rate investment of JPY 1.2 billion that returns JPY 1M Libor +50 bps monthly, and wants to lock in the profit in USD as they expect the JPY 1M Libor to go down or USDJPY to go up (JPY depreciate against USD), then they may enter into a Fixed-Floating swap in different currency where the company pays floating JPY 1M Libor+50 bps and receives 5.6% fixed rate, locking in 30bps profit against the interest rate and the fx exposure.

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