Constant Maturity Swap (CMS) A variation of the regular interest rate swap. In a constant maturity swap, the floating interest portion is reset periodically according to a fixed maturity market rate of a product with a duration extending beyond that of the swap's reset period. Investopedia Says: Constant maturity swaps are exposed to changes in long-term interest rate movements. They are initially priced to reflect fixed-rate products with maturities between two and five years in duration, but adjust with each reset period. Related Terms: Airbag Swap Asset Swap Commodity Swap Derivative Fixed Interest Rate Interest Rate Swap Swap Swap Curve Swap Rate |