Swaps

A swap is a derivative with which two separate parties agree to exchange one stream of cash flows against another stream. These streams are called the 'legs' of the swap.

The cash flows are calculated over a notional principal amount, which is usually not exchanged between counterparties. Consequently, swaps can be used to create unfunded exposures to an underlying asset, since counterparties can earn the profit or loss from movements in price without having to post the notional amount in cash or collateral.

Swaps can be used to hedge certain risks such as interest rate risk, or to speculate on changes in the underlying prices.