The U.S. housing market continues to grapple with a stubborn affordability crisis, even as the supply of available homes reaches levels not seen in more than a decade. Existing-home sales slipped to a seasonally adjusted annual rate of 3.98 million in August, a 2.0% decline from July and 1.2% lower than a year earlier, according to the National Association of Realtors (NAR). The figure fell short of the 4 million pace that economists had anticipated, according to FactSet data cited by the Associated Press.
The report highlights a central paradox: more homes are on the market, but buyers are still struggling to afford them. Unsold inventory rose 3.2% in August from July and 5.9% year over year, reaching 1.62 million homes—the highest level since November 2019. At the current sales pace, that represents a 4.9-month supply, up from 4.6 months in July and the most in over ten years. Yet the median existing-home price climbed 1.6% from a year ago to $429,100, marking the 38th consecutive month of annual price gains.
The disconnect between supply and demand is largely driven by financing costs. The average 30-year fixed mortgage rate stood at 6.71% for the week ended September 3, according to the latest Freddie Mac survey, up from 6.50% a year earlier and the highest in 13 months. For a buyer putting 20% down on the median-priced home, the principal and interest payment would be roughly $2,220 per month—before taxes, insurance, and maintenance. That monthly payment shock continues to keep many potential buyers on the sidelines, despite the improved negotiating position that more inventory provides.
The housing market's struggles were reflected in equity markets on Thursday. The iShares U.S. Home Construction ETF (ITB) fell 2.7%, while the SPDR S&P Homebuilders ETF (XHB) dropped 2.5%. Major homebuilders also felt the pressure: D.R. Horton (DHI) declined 3.2%, and Lennar (LEN) was down 4.8%. These moves were compounded by a broader rise in bond yields following a hotter-than-expected producer price report, but the housing data reinforced the same message: high financing costs are curbing demand.
However, the weakness in existing-home sales does not necessarily translate directly to builder earnings. Large homebuilders have tools that individual sellers lack, such as the ability to buy down mortgage rates, offer closing-cost incentives, and shift their product mix toward smaller, more affordable homes. This competitive advantage could help them capture market share from the resale market. The risk is that a growing inventory of existing homes forces builders to increase their own incentives, potentially slowing order growth or compressing gross margins.
Transaction-driven businesses face a more direct headwind. Brokers, title companies, and mortgage originators rely heavily on sales volume, and a sluggish resale market reduces their activity. Home-improvement retailers also lose a key demand trigger when fewer households move, as a purchase typically leads to spending on paint, flooring, appliances, and renovations. While rising home equity provides some support, it is less immediately monetizable when owners are reluctant to refinance or move.
It is important to note that a sub-4 million sales pace, while weak, does not signal a distressed housing market. Foreclosures are not driving the inventory increase, prices continue to rise, and NAR reported that sales through the first eight months of the year were up 1.6% from the same period in 2025. The August decline was also uneven, with sales holding steady in the West but falling in the Northeast, Midwest, and South.
More supply could eventually become the mechanism that repairs affordability. Longer selling times and fewer bidding wars may slow price growth, even if nominal prices do not decline. If that coincides with a retreat in Treasury yields and mortgage rates, pent-up demand could return quickly. NAR's chief economist noted that the market would be significantly stronger if average mortgage rates returned to near 6%.
Investors will be watching several indicators in the coming weeks. September pending-home sales will provide an early read on contract activity, while builder order updates will reveal how much demand is being supported by incentives. The decisive variable for housing equities remains the 10-year Treasury yield and its pass-through to mortgage rates. A move toward 6% mortgage rates would be more bullish than another modest rise in listings. If rates stay near 6.7% while prices keep climbing, abundant inventory may improve buyer choice without restoring the transaction volumes that the housing ecosystem needs.
