A year with one direction and a long pause

Freddie Mac's Primary Mortgage Market Survey recorded its 2026 low for the 30-year fixed rate at 5.98 percent in the week ending February 26. By the week ending September 17 the same survey put the average at 6.95 percent, the year's high. Between those points, the April through June weeks moved within a comparatively narrow range.

The survey averages lender-offered rates for conventional, conforming, high-credit-quality borrowers with a 20 percent down payment. It is not a transaction average, and it does not include the discount points many borrowers pay to reach a lower rate — so the rate an individual buyer is quoted commonly differs from the published figure.

Why a flat spring mattered

Stability has a value of its own in mortgage markets. Rate locks generally run 30 to 60 days, and volatile weeks push buyers to lock early or abandon searches. A spring in which the survey rate moved in tenths rather than half-points gave the purchase market a workable planning window, which is visible in the May pending-sales gain NAR reported.

It also means the summer deterioration was not a continuation of a steady climb. The move to nearly 7 percent was concentrated in the later part of the year rather than spread evenly across it.

What a point of rate costs a buyer

On a $400,000 loan, the difference between roughly 6.0 percent and roughly 6.95 percent is on the order of $250 a month in principal and interest — an arithmetic calculation from the standard amortisation formula, not a figure published by Freddie Mac. Over a year that is comparable in size to a substantial change in the purchase price.

Analysis: this is why rate movement dominates affordability discussion even in a year when nominal prices rose only modestly. Repeat-sales indices showed low single-digit annual appreciation through mid-2026, a smaller effect on monthly cost than the survey rate's roughly one-point round trip.

Cautions on the series

Freddie Mac changed the survey's methodology in 2022 to collect lender rate data directly rather than through a survey of loan officers, so comparisons with pre-2022 history are not strictly like for like. The archive page carries the full weekly record.

The survey is also weekly and forward-looking in the sense that it reflects offers, not closings. Closed-loan rates reported by other sources lag it.

The weekly path in detail

The Freddie Mac archive shows how narrow the spring band was and how consistent the summer climb became. The 30-year average ran 6.48 percent in the week of June 4, 6.52 percent on June 11, 6.47 percent on June 18 and 6.49 percent on June 25 — a four-week range of five basis points.

From early July the direction changed: 6.43 percent on July 2, 6.49 on July 9, 6.55 on July 16, 6.58 on July 23 and 6.66 on July 30. August held near that level, at 6.69, 6.67, 6.65 and 6.66 percent across its four survey weeks, before September moved higher again — 6.71 percent on September 3, 6.76 on September 10 and 6.95 on September 17.

The 15-year series tracked the same path roughly 65 to 70 basis points lower, from 5.79 percent in early June to 6.26 percent on September 17. Analysis: the total move from the June low of 6.43 percent to 6.95 percent in mid-September is 52 basis points, accumulated almost entirely in weekly increments of ten basis points or less. No single week looked like news; the quarter did.