FULLY INDEXED INTEREST RATE

The interest rate on an adjustable-rate loan that is calculated by adding the margin to an index level. The interest rate on an adjustable (sometimes known as variable) rate loan is tied to a benchmark interest rate, known as an index. Popular indexes for loans are: the prime rate, LIBOR, and various U.S. Treasury bill and note rates. When calculating the fully indexed interest rate, the index level varies according to market conditions but the margin is usually a constant value.