Suppose that a mortgage bank locked in an interest rate for a prospective borrower at 8.5%. However, prior to the loan closing, the market mortgage rate falls to 7.5%. In this scenario, the mortgage banker would be most concerned with which of the following risks?

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2 August, 14:46

Suppose that a mortgage bank locked in an interest rate for a prospective borrower at 8.5%. However, prior to the loan closing, the market mortgage rate falls to 7.5%. In this scenario, the mortgage banker would be most concerned with which of the following risks?

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Boo Boo · Answer 1

Reinvestment risk

Explanation:

The mortgage banker would be most concerned about reinvestment risk, among other risks. Reinvestment risk relates to the inability to earn an original interest rate on an investment from periodic cash flows from the investment, thus limiting the overall rate of return on the investment.

In the question, since market mortgage rate has declined to 7.5%, the mortgage bank would have to reinvest the amount repaid from the original borrower at the new market rate, which is 1% lower than the ruling rate when the original borrower took the loan.

The problem would be compounded if the cost of funding to the mortgage bank was, for instance 8%. If that was the case, on the original loan, the mortgage bank was earning a (8.5% less 8% cost of funding = ) 0.5% on the loan. However, due to the decline in market rates, the mortgage bank would have a cost of 8% compare to a market rate of 7.5% it would earn, thus resulting in a negative return of 0.5%.