Mortgage Applications Slip as 30-Year Rates Hit 7.12%, Borrowers Shift to ARMs Amid Geopolitical Pressures

Mortgage application volume declined 1.5% for the week ending September 18, 2026, marking the third straight weekly drop, according to the Mortgage Bankers Association (MBA) Weekly Mortgage Applications Survey. Purchase applications fell 1% and were down 11% year-over-year, while refinance applications dropped 3% to their lowest level since February 2025 and plunged 62% from a year ago.

The average contract interest rate on 30-year fixed-rate mortgages with conforming loan balances rose to 7.12% from 6.97% the prior week—the highest since May 2024. This increase aligns with broader market pressures, including a 10-year Treasury yield approaching 5% and elevated energy costs tied to the ongoing U.S.-Israel conflict with Iran that began in late February 2026.

As fixed rates climbed, borrowers increasingly turned to adjustable-rate mortgages (ARMs). The ARM share of applications rose to 9.8%, up from 8.4% the previous week, with 5/1 ARM rates averaging 6.10%—more than a full percentage point below fixed-rate loans. MBA Chief Economist Mike Fratantoni noted that the gap is prompting more applicants to accept the reset risk of ARMs for short-term savings.

These trends reflect deeper housing market strains: persistent affordability challenges exacerbated by geopolitical uncertainty, higher oil prices (with Brent briefly above $100), and expectations of further Federal Reserve rate hikes. The shift to ARMs could provide near-term relief for some buyers but introduces long-term payment volatility if benchmark rates remain elevated or rise further due to inflation or energy shocks. Industry analysts highlight that this dynamic may slow home sales and refinancing while pressuring policymakers to address supply constraints and energy stability to stabilize borrowing costs.