U.S. mortgage rates show mixed movement, with the 5/1 ARM surging while 30-year fixed rates dip slightly.
Mortgage rates exhibited divergent trends on August 20, 2026, as the 5/1 adjustable-rate mortgage climbed 23 basis points to 6.54%. The 30-year fixed rate edged down three basis points to 6.52%, while the 15-year fixed rate rose five basis points to 5.92%.
National averages for other loan types remained relatively stable, with the 20-year fixed rate at 6.29% and the 7/1 ARM at 6.34%. Refinance rates followed a similar pattern, with the 30-year fixed refinance rate at 6.59% and the 5/1 ARM refinance rate at 6.52%.
The sharp increase in the 5/1 ARM contrasts with modest fluctuations in fixed-rate products, reflecting shifting borrower preferences amid broader market conditions.