The 30-year fixed rate topped 7% for the first time in roughly 15 months as August existing-home sales came in at a 3.98 million annual pace, and the chief economist reporting the sales figure named the cause without hedging.
The 30-year fixed mortgage rate crossed 7% on September 10 for the first time in roughly 15 months, tracking the 10-year Treasury yield's climb to 4.95% the same session. One widely followed daily rate index showed 30-year fixed rates at 7.07%. A separate survey-based measure, which uses a different methodology and typically lags, showed 6.76%, described as the highest since June 2025. Both readings describe the same direction; the gap between them is a measurement difference, not a dispute about what happened.
Mortgage rates are priced off the 10-year Treasury yield with a spread, so the 15-basis-point three-day move in the long end reached borrowers almost immediately. That mechanical link is what makes this week's bond market story a housing story.
The sales data had already turned
The National Association of Realtors reported August existing-home sales at a seasonally adjusted annual rate of 3.98 million units, down 2.0% from July and down 1.2% from a year earlier. The median existing-home price rose 1.6% year over year to $429,100. Total housing inventory stood at 1.62 million units, or 4.9 months of supply.
NAR Chief Economist Lawrence Yun put the relationship directly: "Mortgage rates and home sales move in opposite directions, so it's not surprising to see a mild dip in home buying activity due to high mortgage rates."
Yun also noted that sales were still up 1.6% year to date through August, supported by 3.1% wage growth and 643,000 net new jobs added since the start of the year. That is the more interesting half of the release, because it frames August as a rate-driven pause inside a year that has been modestly positive, rather than as the start of a decline.
Where the two data points disagree
The August sales figures were collected before the 7% crossing. Closings in August reflect contracts signed in June and July, when the 30-year rate was meaningfully lower. The 2.0% monthly decline therefore measures the effect of a rate environment that has since become worse.
That sequencing is what makes the September and October releases the ones to watch. If Yun's framing holds, the labor market and wage growth cushion the rate move and sales stabilize at a lower level. If the rate move is durable rather than a war-premium spike, the August dip is the first data point in a longer series rather than a one-month wobble.
Inventory at 4.9 months of supply is the variable that decides how that plays out in prices rather than volumes. That level sits in the range where sellers retain some pricing power, which is consistent with the 1.6% median price gain reported alongside falling volumes. Sellers who do not have to move are not cutting yet.
The next scheduled reading is NAR's September existing-home sales release roughly a month out, and before that, the weekly mortgage-rate surveys that will show whether 7% was a threshold crossed or a ceiling tested.