Average 30-year fixed mortgage rates climb 8 basis points to 6.59% amid softer U.S. stance on Iran negotiations.
U.S. mortgage rates moved higher on August 11, 2026, as geopolitical developments weighed on market sentiment. The average 30-year fixed rate rose 8 basis points to 6.59%, while the 5/1 adjustable-rate mortgage increased 15 basis points to 6.52%. The 15-year fixed rate bucked the trend, dipping 4 basis points to 5.97%.
Rates remain elevated compared to last month but are slightly below levels seen in early July. Refinance rates followed a similar pattern, with the 30-year fixed refinance rate at 6.63%, up from the previous day. Lenders continue to balance competitive rates with higher fees, reflecting ongoing volatility in bond markets.
The shift in U.S. tone toward Iran negotiations contributed to the uptick, as investors reassessed risk exposure. Mortgage-backed securities saw modest selling pressure, pushing yields higher across most loan products.