does anything prevent interest rates from rising too high on a 5 6 arm 
many 5 6 hybrid arms and other types of arms have caps that limit how much rates can rise in any given period and in total over the life of the loan the bottom linea 5 6 hybrid adjustable rate mortgage has a fixed interest rate for the first five years and then the rate adjusts every six months the rate is commonly linked to a benchmark index such as the prime rate 