The headlines are focused on missiles and oil, but one of the biggest secondary impacts of this war is unfolding in a place far removed from the Middle East: the U.S. housing market—and specifically, homebuilders.
Because what’s happening right now is a perfect storm of rising costs, higher rates, and weakening affordability, all tied directly back to the geopolitical shock.
Let’s break it down.
The War Is Driving a New Cost Shock
At the center of everything is energy.
The conflict has disrupted global oil flows—particularly through the Strait of Hormuz—sending crude prices sharply higher and reigniting inflation fears across the global economy.
That matters more to homebuilders than most investors realize.
Energy is embedded in nearly every part of construction, from the transportation of materials to the manufacturing of lumber, steel, and cement, to on-site building activity. As oil rises, so does the cost of building a home.
And it’s not just fuel.
Tariffs layered on top of this geopolitical tension are pushing up the cost of imported materials and appliances, creating a double hit to builders’ margins.
Margins Are Getting Squeezed—Fast
We’re already seeing the impact in real time. U.S. homebuilders are reporting rising raw material costs, slower sales volumes, and declining profitability. One major builder just reported a 22% drop in completed home sales year over year, highlighting how quickly conditions are tightening.
And the outlook isn’t improving.
Across the industry, companies are warning that 2026 is shaping up to be another challenging year, with tariffs and war-driven inflation continuing to pressure margins.
This is exactly the kind of environment where builders lose pricing power and profits begin to compress.
Mortgage Rates Are the Silent Killer
But the bigger issue—and the one the market is just starting to price in—is that the war is pushing interest rates higher. As oil spikes, inflation expectations rise, which keeps Treasury yields elevated, and mortgage rates follow.
We’re already seeing it.
Mortgage rates climbed in March as war-driven inflation fears intensified, and housing demand is starting to soften again. This is critical because housing is one of the most rate-sensitive sectors in the entire economy. Even small moves in mortgage rates can price buyers out of the market, reduce demand, and increase cancellations.
Now combine all of this: higher construction costs, higher mortgage rates, and slowing demand. That’s a dangerous feedback loop.
Builders are left with two difficult choices: raise prices and risk further demand destruction, or absorb the costs and watch margins shrink. There’s no easy way out.
Historically, this is when housing stocks begin to lag—even if the broader market is still holding up.
What It Means for Stocks
This doesn’t mean every homebuilder stock collapses, but it does mean the backdrop has shifted—and the market has already started reacting.
Take the iShares U.S. Home Construction ETF (ITB) as a proxy for the group.

Since the war began, ITB is down roughly 7%, and at its worst point during the initial shock, it was down nearly 20% from its highs. That’s a significant move in a short period of time, and it tells you one thing clearly: a lot of the fear may already be priced in.
Markets don’t wait for confirmation—they anticipate. In this case, investors quickly priced in higher input costs, rising mortgage rates, and slowing housing demand. But after that sharp drawdown, the partial rebound we’re seeing suggests investors are starting to ask whether the worst is already behind us.
That’s why this moment matters. Because now we shift from panic pricing to data confirmation.
Over the coming weeks, this sector is going to trade less on headlines and more on actual results. Watch closely for margin compression across major builders, slowing order growth and rising cancellations, and increased incentives—a key signal that demand is weakening.
If those trends confirm what the market already feared, ITB and the broader homebuilder space likely have another leg lower. But if the data comes in better than expected, you could see a relief rally, because expectations have already been reset lower.
At the same time, there are second-order winners emerging, including building material suppliers with pricing power, energy and infrastructure plays benefiting from higher oil, and rental housing and multifamily demand as affordability drops.
The Bottom Line
The war isn’t just a geopolitical story. It’s an inflation story, a rates story, and now— increasingly—a housing story. And the market has already started to price that in.
But pricing it in and fully digesting the impact are two very different things.
If this conflict drags on, the pressure on homebuilders won’t just persist—it will accelerate.
That’s where the opportunity—and the risk—is starting to build.
Here’s to the future,
Matt McCall
Founder, NXT Wave Research

