You have a lot of choices to make in buying a house and deciding upon a home loan, and in today’s confusing loan world, you now also have to choose the index that you want for your Adjustable Rate Mortgage (ARM).
The index is the underlying instrument that is utilized as a basis for the change of the mortgage rate. Various indices are used, including government treasury instruments, the Fed Fund rate or LIBOR.
Interest rates on ARMS adjust, upwards or downwards, based on how general rates are moving, which is reflected in the movement of the underlying index rate. One such instrument would be Certificates of Deposit-your loan rate would go up and down with the CD rate. ARMS also have adjustment caps, so that you can limit the exposure as to how high your mortgage rate can go, even if your index rate continues to increase, which is excellent if you just had a change, and the rates increase again. It can be a disadvantage if you have just readjusted, and then there is a downward movement, but.
The list of instruments that ARMs can be tied to reads like alphabet soup nowadays, from CDs to LIBOR. The Fed Funds rate is another very well loved basis for ARMs. LIBOR is the London Interbank Offered rate, which is a rate that commercial borrowers pay each other for the use of funds.
Deciding upon which index is best for you will depend on your own situation as well as your view of interest rate movements. CD ARMs change every six months, for example, and therefore react more readily to interest rate changes. Adjustable rate mortgages that use T Bills tend to change more slowly. LIBOR is one of the fastest moving indices, so if you want to take advantage of quickly falling interest rates, this is the one to use.
An fascinating, and possibly perilous choice in interest rate options is the option ARM, which allows the borrower to choose the “option” of choosing his mortgage payment every month. The mechanism behind these loans is that they are interest interest only loans, so you have to pay that minimum, and then you have the choice to pay more. People using this option should be careful about negative amortization, because they may never repay any of the loan if they always choose the lowest amount.
With all of these choices, a prospective borrower should be sure to talk to a professional mortgage consultant who understands the many products and can help you choose the best one for you.