Borrowers turn to ARMs as 30-year mortgage rates hit 6.85%

The average 30-year fixed-rate conforming mortgage climbed to 6.85% last week, the highest since June 2025, pushing more borrowers toward adjustable-rate loans that offer lower initial payments.

"Mortgage rates moved higher last week, driven by ongoing investor concerns over inflation and the federal budget deficit," said Joel Kan, vice president and deputy chief economist at the Mortgage Bankers Association.

ARM demand rose to 8.5% of all mortgage applications, up from 8% the prior week and the highest share since June. The average rate on a 5-year ARM fell to 5.82% from 5.94%, widening the gap with the 30-year fixed to more than 100 basis points. Total application volume dropped 2.7% for the week, with refinance applications falling 6% — down 25% from a year earlier and the slowest pace since May 2025. Purchase applications were essentially flat, down 0.2% weekly but 4% higher year over year.

The 30-year fixed now sits 36 basis points above year-ago levels, and the widening rate differential between fixed and adjustable products is reshaping borrower behavior in a housing market where inventory has increased in many regions. With the Federal Reserve holding its benchmark rate at 3.50%-3.75% and the next FOMC meeting set for Sept. 15-16, investors are awaiting monthly inflation data due later this week that could move mortgage rates sharply in either direction.

ARM share climbs as rate gap widens

The shift toward ARMs marks a notable reversal from the pandemic era, when mortgage rates fell to historic lows and ARM demand barely reached 3% of applications. Borrowers who locked in 30-year fixed rates below 3% in 2020 and 2021 have largely stayed put, but new buyers facing 6.85% on a fixed loan are increasingly choosing 5-year ARMs at 5.82% — a spread of 103 basis points that translates to meaningful monthly savings on a typical mortgage.

"Higher mortgage rates continue to weigh on prospective homebuyers looking to act, even as housing inventory has increased in many markets," Kan added.

The conforming loan limit for 2026 stands at $832,750 in most of the U.S., with higher caps in certain high-cost areas. Borrowers above that threshold face jumbo rates averaging 6.83%, according to Mortgage Research Center data.

Refinance activity hits slowest pace since May

Refinance applications fell hardest last week, dropping 6% and running 25% below the same week a year ago — the slowest pace since May 2025. The decline reflects the reality that most homeowners who could benefit from refinancing already did so when rates were lower, leaving little incentive to refinance at current levels.

Purchase applications, while flat week over week, remain 4% higher than a year earlier. Mike Fratantoni, the MBA's senior vice president and chief economist, noted that "in many local markets, potential buyers have plenty of homes to choose, and this is likely supporting transaction volume."

Mortgage rates were unchanged to start this week, according to a separate survey from Mortgage News Daily. The Fed's next policy decision arrives Sept. 15-16. If inflation data released this week comes in hotter than expected, mortgage rates could push higher, further compressing demand. A cooler reading could provide relief, though mortgage rates track the 10-year Treasury yield more closely than the federal funds rate, and investor concerns about the federal deficit continue to push yields higher across global markets.

This article is for informational purposes only and does not constitute investment advice.