A 5/1 hybrid adjustable-rate mortgage (5/1 hybrid ARM) begins with an initial five-year fixed-interest rate, followed by a rate that adjusts on an annual basis. The "5" in the term refers to the.
10/1 Adjustable Rate Mortgage- 10 year rates mortgage Adjustable Rate Mortgage. 10/1 ARM – the rate is fixed for a period of 10 years after which in the 11th year the loan becomes an adjustable rate mortgage (ARM). The adjustable rate is tied to the 1-year treasury index and is added to a pre-determined margin (usually between 2.25-3.0%) to arrive at your new monthly rate.