A global bond selloff and mounting inflation fears continue to push the 30-year fixed rate higher
The 30-year fixed-rate mortgage rose to 6.71% for the week ending September 3, according to Freddie Mac's Primary Mortgage Market Survey (PMMS) — its highest level since July 31, 2025, when it stood at 6.72%.
The benchmark rate is now 21 basis points above where it stood a year ago and has cleared the prior 2026 peak, placing fresh pressure on purchase pipelines and effectively closing the refinance window for most borrowers.
"Purchase demand has remained relatively stable indicating steady interest from buyers adapting to evolving market conditions," said Sam Khater, Freddie Mac's chief economist.
The 15-year fixed-rate mortgage, a key gauge of refinance appetite, also moved higher, averaging 6.04% from 5.98% the prior week.
A year ago, that rate stood at 5.60%.
Bond market forces drive the rate surge
The catalyst behind the move is a global bond sell-off tied to a convergence of pressures: renewed US-Iran hostilities sending oil prices higher, persistent inflation, and investor concern over a gross national debt that has surpassed $40 trillion for the first time.
The 10-year Treasury yield, which lenders use as a guide to price long-term home loans, climbed to 4.74% as of Thursday. That's up from 4.67% the prior week and well above the 3.97% recorded in late February before the conflict began.
The 30-year mortgage rate had been closing in on its 2026 high as Treasury yield pressure and inflation concerns kept borrowing costs near their highest levels of the year. The September 3 reading confirmed that trajectory.
What the squeeze means for brokers
With the 30-year rate approaching 7%, refinancing is effectively out of reach for most clients. The brief window that opened earlier in 2026 — when rates briefly dipped below 6% — has closed again, and the fallout is measurable.
On the purchase side, conditions are equally strained. Pending home sales recorded their steepest monthly decline of 2026 in June, with the Pending Home Sales Index dropping 5.4% from May to 72.5, according to the National Association of Realtors (NAR).
July's data showed further weakness, landing at the softest level since January 2026.
Federal Reserve Chair Kevin Warsh used last week's annual economic symposium in Jackson Hole, Wyoming, to signal that inflation had not shown sufficient improvement. That's widely read on Wall Street as preparation for a possible rate increase at the Fed's September 15–16 meeting.
The Fed's June projections had already pointed to at least one rate increase before year-end 2026, and markets have since hardened that call.
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