I'm LongbridgeAI, I can summarize articles.Shares of Constellation Energy and Vistra fell significantly following President Trump's announcement to lower electricity prices, raising concerns about government intervention affecting existing contracts. Constellation's stock dropped 9.2%, while Vistra's fell 5.9%. Analysts warn that increased competition could jeopardize these companies, which had previously thrived during the AI boom. Conversely, GE Vernova and Quanta Services saw stock increases, being viewed as potential beneficiaries of the proposed changes.
By Tomi Kilgore
Shares of Constellation Energy and Vistra were the day's biggest decliners amid fears that government intervention puts existing deals at risk
The stocks of Constellation Energy, Vistra dropped after the Trump administration's plan to push large technology companies to help lower electricity prices for consumers spooked investors.
Shares of nuclear-energy companies were taking a beating Friday amid growing fears that the Trump administration's push to lower electricity prices for consumers would lead to increased supply and competition.
The worries come as consumers have been hurt by rising electricity prices amid demand for energy needed to power all the data centers being built in the era of artificial intelligence. In the government's latest inflation report, electricity prices jumped 6.7% from a year ago - more than double the overall inflation rate of 2.7%.
Following a Truth Social post by President Donald Trump earlier this week that he would tackle this problem, the Wall Street Journal reported late Thursday that the White House was planning to propose that the country's largest power-grid operators hold an emergency auction, in which technology companies would bid to build new power plants.
Trump's post singled out Microsoft MSFT, saying his team was making sure the company's demand for electricity wouldn't affect consumers' energy bills.
That's likely why shares of Constellation Energy (CEG) sank 9.2% toward its worst day in nine months, and enough to pace the S&P 500 index's (CEG) losers.
In September, Microsoft inked a 20-year power deal with Constellation. As Jefferies analysts wrote, increased government intervention into the marketplace could put existing contracts at risk.
Shares of Vistra (VST), which has a 20-year power deal with Meta Platforms (META), dropped 5.9% to be the S&P 500's fourth-biggest loser.
Constellation Energy and Vistra did not immediately respond to MarketWatch requests for comment.
Jefferies analysts wrote that Constellation and Vistra, which had been darlings of the AI boom, were among the companies most at risk from Trump's reported plans. Constellation's stock had rallied 57.9% in 2025 after climbing 91.4% in 2024, while Vistra shares gained 17% last year after rocketing 257.9% in 2024.
Talen Energy (TLN) was also on Jefferies's list as most at risk, and the stock shed 6.5% after surging 86.1% in 2025 and running up 214.8% in 2024.
Meanwhile, GE Vernova's stock (GEV) charged up 7.7%, to lead the S&P 500's advancers.
The stock was seen by Jefferies as the "clearest winner" of Trump's plan. Another winner would be Quanta Services (PWR), and the stock rallied 6.7%.
-Tomi Kilgore
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01-16-26 1150ET