US homebuilding lost momentum in September, as rising mortgage rates continued to weigh on the housing market. Housing starts—the number of new residential construction projects begun—fell 5.2% to a seasonally adjusted annual rate of 1.22 million units, the lowest level in four months. The decline was steeper than expected; economists had forecast a 1.9% increase to 1.31 million.
The data, released jointly by the Census Bureau and the Department of Housing and Urban Development, also showed building permits—a forward-looking indicator of future construction—continued to drift downward. That suggests builders are bracing for softer demand ahead.
The resale market looked even weaker. The National Association of Realtors reported that pending home sales—contracts signed but not yet closed—dropped 7.3% in September, a sharp reversal from a small rise in August and far worse than the modest dip analysts had predicted.
Why housing is cooling
The housing sector has been under pressure for much of the past year as the Federal Reserve's aggressive interest-rate hikes pushed mortgage rates to multi-decade highs. Higher borrowing costs make home purchases less affordable, which tends to slow both new construction and existing-home sales.
Builders are also facing elevated costs for materials and labor, which can squeeze profit margins and make some projects less attractive to start. The decline in permits suggests that builders are pulling back on new projects, which could keep housing supply tight in the months ahead.
For prospective buyers, the news is mixed. On one hand, weaker demand could eventually lead to more negotiating power and potentially lower prices in some markets. On the other, the shortage of available homes—especially affordable ones—remains a structural issue that won't be solved quickly.
Stocks rally despite weak data
Despite the gloomy housing numbers, financial and real estate stocks rose on Tuesday. The Philadelphia Housing Index gained 2.2%, and the Real Estate Select Sector SPDR Fund—an exchange-traded fund that tracks large real estate investment trusts—rose 1.6%.
The reason for the disconnect: interest rates. The yield on the 10-year US Treasury note edged down to 5.13%. Lower long-term yields reduce borrowing costs for companies and can make future earnings more valuable today. That's particularly important for real estate and homebuilder stocks, which are considered “long-duration” assets—meaning a large portion of their value depends on cash flows expected years from now.
When investors see weak economic data, they often interpret it as a sign that growth will slow, which could prompt the Federal Reserve to ease off on rate hikes. That expectation can push long-term yields lower, providing a tailwind for rate-sensitive sectors like housing and real estate.
This dynamic is a common pattern in markets: bad news for the economy can be good news for stocks, at least in the short term. As Treasury yields dipped on the back of the housing data, investors rotated into sectors that benefit from lower rates.
What it means for investors
For everyday investors, the key takeaway is that housing data can move markets in unexpected ways. A weak housing report might seem like a negative for homebuilder stocks, but the interest-rate effect can dominate.
As we've seen, a 5.13% 10-year yield can matter more than a 1.22 million housing starts number. When long-term yields fall, it reduces the discount rate applied to future earnings, which can boost valuations for companies with long-duration cash flows—like homebuilders, real estate investment trusts, and utilities.
That's why housing-linked stocks and listed real estate can rally on a soft housing print, even if the underlying fundamentals look weak. Investors are betting that weaker activity today will translate into less pressure for high interest rates later.
For those with exposure to these sectors, it's worth watching the trajectory of Treasury yields and the Federal Reserve's policy signals. If yields continue to fall, housing stocks could keep climbing despite sluggish fundamentals. Conversely, if yields spike again, the sector could come under renewed pressure.
It's also important to remember that housing is a lagging indicator—it responds to interest rates with a delay. The full impact of the Fed's rate hikes may still be working through the economy. As Wall Street edged higher on Tuesday, the housing data was just one piece of a complex puzzle.
For those considering buying a home, the cooling market could offer some relief, but mortgage rates remain high. For investors, the lesson is to look beyond the headline numbers and understand the forces—especially interest rates—that drive market reactions.
As always, diversification and a long-term perspective remain key. No single data point should dictate your investment strategy, but understanding how housing and rates interact can help you make more informed decisions.
