What is Swap ?

What it is:

A swap is an agreement between two parties to exchange a series of future cash flows.

How it works/Example:

Swaps are financial agreements to exchange cash flows. Swaps can be based on interest rates, stock indices, foreign currency exchange rates and even commodities prices.

Let's walk through an example of a plain vanilla swap, which is simply an interest rate swap in which one party pays a fixed interest rate and the other pays a floating interest rate.

The party paying the floating rate "leg" of the swap believes that interest rates will go down. If they do, the party's interest payments will go down as well.

The party paying the fixed rate "leg" of the swap doesn't want to take the chance that rates will increase, so they lock in their interest payments with a fixed rate.

Company XYZ issues $10 million in 15-year corporate bonds with a variable interest rate of LIBOR + 150 basis points. LIBOR is currently 3%, so Company XYZ pays bondholders 4.5%.

After selling the bonds, an analyst at Company XYZ decides there's reason to believe LIBOR will increase in the near term. Company XYZ doesn't want to be exposed to an increase in LIBOR, so it enters into a swap agreement with Investor ABC.

Company XYZ agrees to pay Investor ABC 4.58% on $10,000,000 each year for 15 years. Investor ABC agrees to pay Company XYZ LIBOR + 1.5% on $10,000,000 per year for 15 years. Note that the floating rate payments that XYZ receives from ABC will always match the payments they need to make to their bondholders.

Investor ABC thinks that interest rates are going to go down. He is willing to accept fixed rates from Company XYZ

To do this, Company XYZ structures a swap of the future interest payments with an investor willing to buy the stream of interest payments at this variable rate and pay a fixed amount for each period. At the time of the swap, the amount to be paid over the life of the debt is the same.