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Loan Glossary

Index:

A nationally published financial measure of economic conditions usually relative to other financial instruments such as bonds or Treasury Bills. The lender uses a particular index (such as the 6 month Treasury Bill) to calculate your particular monthly payment by adding a fixed margin to the index. The margin is the lenders profit and is over and above the normal index because of the assumption of loan risk. Your lender will adjust the interest on your ARM at regular time intervals also called adjustment intervals (like 6 months), by adding their particular margin to the particular index of the loan. The amount the loan is adjusted is also controlled by a periodic cap (the maximum amount the loan can change during your particular adjuless than the indexed rate the first year of an adjustable-rate mortgage.