The AI building boom just ran into politics, or at least the stocks behind the buildup did. On Wednesday, the day after Democrats won control of the House and Senate, investors dumped the companies that build data centers and supply their power and cooling equipment. By midmorning, Modine (NYSE:MOD) was down about 24%, Sterling Infrastructure (NASDAQ:STRL) about 19% and Comfort Systems USA (NYSE:FIX) about 16%. Even the industry's giants weren't spared: Vertiv (NYSE:VRT) and GE Vernova (NYSE:GEV) were each down roughly 11% to 12%. Meanwhile, the S&P 500 climbed about 2%.
So, what spooked investors? And is this the kind of drop worth buying?
Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. Continue »
Image source: Getty Images.
A Democratic House was largely expected, so much of that was largely priced in, but one of the bigger shocks came from Texas, where Democrat Gina Hinojosa defeated Republican Gov. Greg Abbott after campaigning for an immediate moratorium on new data centers. That's a big deal, because Texas holds about 27% of the data center capacity planned in the U.S., according to Wells Fargo.

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