Swaption - The Swaption Market

The Swaption Market

The participants in the swaption market are predominantly large corporations, banks, financial institutions and hedge funds. End users such as corporations and banks typically use swaptions to manage interest rate risk arising from their core business or from their financing arrangements. For example, a corporation wanting protection from rising interest rates might buy a payer swaption. A bank that holds a mortgage portfolio might buy a receiver swaption to protect against lower interest rates that might lead to early prepayment of the mortgages. A hedge fund believing that interest rates will not rise by more than a certain amount might sell a payer swaption, aiming to make money by collecting the premium. Major investment and commercial banks such as JP Morgan Chase, Bank of America Securities and Citigroup make markets in swaptions in the major currencies, and these banks trade amongst themselves in the swaption interbank market. The market making banks typically manage large portfolios of swaptions that they have written with various counterparties. A significant investment in technology and human capital is required to properly monitor the resulting exposure. Swaption markets exist in most of the major currencies in the world, the largest markets being in U.S. dollars, euro, sterling and Japanese yen.

The swaption market is over-the-counter (OTC), i.e., not traded on any exchange. Legally, a swaption is an agreement between the two counterparties to exchange the required payments. The counterparties are exposed to each others' failure to make scheduled payments on the underlying swap, although this exposure is typically mitigated through the use of "collateral agreements" whereby margin is posted to cover the anticipated future exposure.