Adjustable Rate Mortgage - How They Work? - part 1
by Martin Lukac
How does an ARM work.
The borrowers interest rate is determined initially by the cost of money and the time the loan is made. Once the rate has been set, and it is tied to one of several widely recognized and published indexes , and future interest adjustments are based on the upward an downward movements of the index. An index is a statistical report that is generally reliable indicator of the approximate change in the cost of money.
At the time a loan is made, the index preferred by the lender is selected, and thereafter the loan interest rate to rise and fall with the rates reported by the index. Since the index is a reflection of the lenders cost of money, it is necessary to add a margin to the index to ensure sufficient income for administrative expenses and profit. Margin will usually vary from 2% to 3%. The index plus the margin equals the adjustable interest rate. It is the index rate that fluctuates during the term of the loan and the cause of the borrowers interest rate to increase and decrease, the lenders margin remains constant.
The index.
Most lenders try to use an index to is very responsive to economic fluctuations. Some of the indexes are Treasury Rates--CMT-MTA-COFI-CODI-COSI-LIBOR-Prime Rate.
Margin.
The margin is the difference between the index rate and the interest charged to the borrower.
Example:
9.25% - current index rate
2.00% - margin
______
11.25% - mortgage interest rate (note rate)
Rate adjustment period.
The rate adjustment period refers to the intervals and which a borrowers interest rate is adjusted, example: six months, one year, for years and so on. After referring to the rates movement in the selected index, the lender will notify the borrower of any rate increase or decrease. Annual rate adjustments are most common.
Lenders used two different mechanisms to limit the magnitude off payment changes that occur with interest rate adjustments: Interest rate caps and payment caps
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Adjustable Rate Mortgage - How They Work?
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