Index

A number used to compute the interest rate for an ARM. The index is generally a published number or percentage, such as the average interest rate or yield on U.S. Treasury bills. A margin is added to the index to determine the interest rate that will be charged on the ARM. This interest rate is subject to any caps on the maximum or minimum interest rate that may be charged on the mortgage, as stated in the note.

The index is a benchmark interest rate that reflects general market conditions. The index changes based on the market. Changes in the index, along with your loan’s margin, determine the changes to the interest rate for an adjustable-rate mortgage loan.

A number used to compute the interest rate for an adjustable-rate mortgage (ARM). The index is generally a published number or percentage, such as the average interest rate or yield on U.S. Treasury bills. A margin is added to the index to determine the interest rate that will be charged on the ARM. This interest rate is subject to any caps on the maximum or minimum interest rate that may be charged on the mortgage, stated in the note. Individual Retirement Account (IRA): A tax-deferred plan that can help you build a retirement nest egg.