The average U.S. 30-year fixed mortgage rate jumped to 7.28% as of October 1, up from 7.03% one week earlier, according to Freddie Mac’s latest Primary Mortgage Market Survey. The 25-basis-point weekly increase was the largest in about four years and pushed the benchmark mortgage rate to its highest level since late 2023.
The move extends a sharp reversal from only two weeks ago. Freddie Mac’s series stood at 6.95% on September 17 and 6.76% on September 10, meaning the 30-year rate has risen 52 basis points in three weeks. Investozora previously reported the move to 6.95% in September as longer-term borrowing costs were already moving higher.
A year earlier, the same Freddie Mac rate was 6.34%. The agency’s survey covers conventional, conforming, fully amortizing home-purchase loans for borrowers with excellent credit and a 20% down payment, so individual borrowers can receive materially different quotes.
Treasury yields remain the central market link
The mortgage increase occurred during a period of unusually high Treasury yields, but the timing requires care: Freddie Mac’s figure is a weekly average rather than a Thursday market close.
The Treasury Department’s official daily yield curve put the 10-year constant-maturity yield at 5.24% on October 1, based on market quotations obtained at or near 3:30 p.m. ET. That was actually below 5.29% on September 30, although the benchmark had climbed substantially from 4.81% on September 22.
That longer-term repricing matters because mortgage rates are more closely connected to longer-dated bond and mortgage-backed-security markets than mechanically to the federal-funds rate. Investozora has separately explained how Fed policy and Treasury yields interact.
The bond-market backdrop has included stronger revised economic data. The Bureau of Economic Analysis’ September 30 GDP estimate showed second-quarter real GDP expanding at a 2.2% annualized rate, revised up from 1.5%. Separately, the Federal Reserve raised its target range by 25 basis points in September to 3.75%–4.00%. Those developments form part of the rate environment investors have been assessing, but neither alone establishes the cause of this week’s mortgage-rate increase.
Housing demand was already weakening before Thursday’s Freddie Mac release. The Mortgage Bankers Association’s latest weekly survey showed total mortgage application volume falling 6.0% in the week ended September 25, including a 4% decline in the seasonally adjusted purchase index.
The next immediate test for the rates market is the September U.S. employment report, scheduled by the Bureau of Labor Statistics for October 2 at 8:30 a.m. ET. Treasury yields following that release will provide the next market signal for whether the recent increase in mortgage borrowing costs is likely to persist.
