Data Center Stocks Plunge After the Midterms: A Texas Pause Sparks an AI Selloff

Data center stocks plunged on Wednesday, November 4, 2026, even as the wider market celebrated. While the Dow Jones Industrial Average surged more than 1,500 points after Democrats won control of Congress, investors dumped the companies that build data centers and supply their power and cooling. Sterling Infrastructure fell about 21.5%, Cipher Digital dropped 20%, Comfort Systems USA lost about 15%, Vistra fell 13.8% and Vertiv slid 12.9% in a single session.

What happened to data center stocks today?

The selloff hit almost every part of the AI building boom at once. Modine fell about 21%, Sterling Infrastructure about 21.5% and Comfort Systems USA about 15%, according to market coverage of the session. The giants were not spared either: Vertiv, which makes power and cooling equipment for data centers, closed down 12.9% at $205.55, GE Vernova fell 9.3%, power generator Vistra lost 13.8%, data center developer Cipher Digital dropped 20% and AI cloud provider CoreWeave fell 9.9%. It was a rare day when the market's biggest winners and losers were decided by the same election.

Why did data center stocks fall?

The trigger was Texas. Democrat Gina Hinojosa defeated Republican Governor Greg Abbott in the Texas governor's race after campaigning for an immediate moratorium on new data center construction. That matters enormously because Texas holds about 27% of the data center capacity planned in the United States, according to Wells Fargo figures cited in coverage of the selloff. Georgia's governor-elect also campaigned on pausing new construction, and Goldman Sachs analysts warned that Democratic governors in Texas, Georgia and Michigan could impose conditional moratoria while new legislation is written. By Goldman's estimate, the states likely to add restrictions account for roughly 45% of planned U.S. data center capacity.

The proposed rules could end certain tax breaks and tighten environmental, water and electricity requirements for new projects. Texas had already paused some grid connections and environmental permits under Abbott while an audit of power and water use was completed, and analysts said the incoming governor could extend that freeze, potentially stalling billions of dollars of planned projects.

Why is this blowing up now?

The shock is the contrast. These stocks were sold on politics, not on weak business results. Vertiv's most recent quarter showed sales jumping 61% to about $4.3 billion, organic orders more than doubling, and the company raising its full-year sales forecast by $650 million. Sterling's revenue more than doubled, rising 127%, and its combined backlog grew 78% to $6.1 billion. In other words, demand for data centers has not slowed — what changed overnight is how quickly investors think new projects will be allowed to break ground.

There was also a striking split inside the AI trade itself. While the builders and power suppliers were being sold, the biggest buyers of data centers rose: Microsoft gained about 6.7% to record highs and Amazon also rose more than 6%. Strategists cited by Reuters explained that a slower buildout could ease the huge spending burden on the big cloud companies, while making the data centers they already own more valuable.

Key facts

• Biggest losers: Sterling Infrastructure -21.5%, Modine about -21%, Cipher Digital -20%, Comfort Systems USA -15.1%, Vistra -13.8%, Vertiv -12.9%, CoreWeave -9.9%, GE Vernova -9.3%.
• The catalyst: Texas governor-elect Gina Hinojosa campaigned on an immediate moratorium on new data center construction.
• The exposure: Texas holds about 27% of planned U.S. data center capacity (Wells Fargo); states where Goldman Sachs expects possible restrictions account for about 45%.
• The other side of the trade: Microsoft rose about 6.7% and Amazon more than 6% on the same day.
• Fundamentals: Vertiv's latest sales rose 61% year over year; Sterling's revenue rose 127% with a $6.1 billion backlog.

Sources: Motley Fool, Seeking Alpha, AI Stock Wire, The PM Brief.

What's next?

Policy moves slowly, and that is exactly the uncertainty now hanging over the sector. A moratorium would most directly delay projects that have not broken ground yet, raise costs where tax breaks disappear, and hit smaller, Texas-concentrated builders harder than diversified giants. Watch for statements from the incoming governors, any extension of Texas's existing permit pause, and upcoming earnings from power names such as Vistra, which can show how much of this risk is already in management's plans. For now, the AI buildout trade has a new headline risk — and it comes from state politics, not from technology.

FAQ

Why did data center stocks fall on November 4, 2026?

Investors reacted to midterm results, especially the Texas governor's race, where the winner campaigned on pausing new data center construction. Fear of moratoria, lost tax breaks and stricter power and water rules hit builders, cooling and power companies hardest.

Which data center stocks fell the most?

Sterling Infrastructure fell about 21.5%, Cipher Digital 20%, Comfort Systems USA about 15%, Vistra 13.8% and Vertiv 12.9%. Modine, CoreWeave and GE Vernova also posted large single-day losses.

Why did Microsoft and Amazon rise while data center stocks fell?

Strategists said a slower buildout could reduce the big cloud companies' spending and increase the value of data centers they already own. Microsoft rose about 6.7% and Amazon more than 6% on the day.

How much U.S. data center capacity could new restrictions affect?

Texas alone holds about 27% of planned U.S. capacity, according to Wells Fargo. Goldman Sachs estimates the states likely to add restrictions together account for about 45% of planned capacity.