Today: 29 June 2026
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NYSE:CEG 28 January 2026 - 20 June 2026

Constellation Energy stock ends shortened week higher as AI power rules lift nuclear trade

Constellation Energy stock ends shortened week higher as AI power rules lift nuclear trade

Constellation Energy shares ended a holiday-shortened U.S. trading week sharply higher, helped by a fresh federal push to speed electricity connections for large AI data centers and by renewed buying in power producers tied to the data-infrastructure trade. The stock closed Thursday at $274.06, up 2.58% on the day and 8.0% from its June 12 close. That matters now because there was no Friday session. The New York Stock Exchange closed on June 19 for Juneteenth, leaving Thursday’s tape as the market’s last mark before the weekend. Constellation outpaced the S&P 500’s 1.08% rise that day, while volume of about 7.0 million shares ran at roughly twice its 50-day average, MarketWatch data showed.
20 June 2026
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Constellation Energy Earnings Preview: AI Power Bet Faces a 7% Stock Test

Constellation Energy Drops; Three Mile Island Restart News Runs Into AI Power Sector Selloff

Shares of Constellation Energy dropped Wednesday, with the stock hit by selling across names tied to the AI-power theme. The nuclear power operator became a focus for traders betting on electricity demand. CEG last changed hands at $243.32, down $8.33 from the day before. The SPDR S&P 500 ETF eased about 1.0%, with CEG underperforming the main benchmark. This didn’t seem like fallout from any single company headline. It looked more like traders were cutting names tied to AI’s surging power needs. Vistra dropped 4.9%, with GE Vernova shedding 6.0%. Both stocks are exposed to that same story.
10 June 2026
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Nuclear decision gives Constellation boost, but CEG stock slides

Nuclear decision gives Constellation boost, but CEG stock slides

Constellation Energy Corp. slipped 3.7% to finish at $254.83 on Friday, trading well below the $287.75 Nasdaq last sale price listed in its May 29 prospectus supplement for this week’s shareholder offering. Shares stayed weak going into the weekend, even after a regulatory decision favored the company’s Three Mile Island restart plan. Timing is an issue. U.S. stocks are closed for the weekend, as Nasdaq trades only Monday to Friday, 9:30 a.m. to 4 p.m. ET. Investors get a pause to weigh a week packed with new stock supply, rate concerns and nuclear-power headlines before trading starts again Monday.
7 June 2026
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NuScale Rises Again as Nuclear AI Trade Eyes New Test

NuScale Rises Again as Nuclear AI Trade Eyes New Test

NuScale Power shares climbed 8.6% to $14.00 in early afternoon trading Tuesday. Investors were buying nuclear tech stocks again as power demand from data centers and AI stays in focus. NuScale opened at $12.75 and hit $14.30 at the session high. Volume topped 41 million shares. The company’s market value was close to $4.48 billion. NuScale’s move drew attention since it happened in a normal U.S. session and there wasn’t a new contract disclosure from the company. NuScale’s investor calendar showed management scheduled for the UBS Cleanpower Expo and RBC Capital Markets’ Global Energy, Power & Infrastructure Conference in New York on June 2. Its press-release page listed the last update as the May 7 first-quarter release.
2 June 2026
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Constellation Energy Shares Drop After $3.1 Billion Sale Raises Questions for AI Power Bet

Constellation Energy Shares Drop After $3.1 Billion Sale Raises Questions for AI Power Bet

Constellation Energy shares slid Monday after existing holders set the price on an 11 million-share secondary offering. The block sale added pressure to a key nuclear-power trade on Wall Street that’s linked to artificial intelligence data-center demand. Constellation shares dropped 6.6% to $268.90 late in the day, while the SPDR ETF tracking the S&P 500 edged higher and the Utilities Select Sector SPDR Fund slipped 2.7%. Vistra slid 3.5%, NRG Energy was off 3.6%. Power producers took a hit, but Constellation posted the sharper, stock-specific fall.
1 June 2026
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Constellation Energy Earnings Preview: AI Power Bet Faces a 7% Stock Test

Constellation Energy Shares Trade Higher as Attention Turns to Tuesday’s AI Power Story

Constellation Energy finished the week strong, with shares climbing to $294.07 at Friday’s close, after bouncing back late in the week. The move came as new U.S. grid-reliability steps and talk around data center electricity demand returned to the spotlight. Shares picked up from $260.67 on Tuesday to $294.07 by Friday, according to company pricing. Constellation is now a direct bet on the U.S. power market getting tighter: power demand keeps rising, while new supply comes slower, and the grid operator is working to hold on to power plants. The story for investors is straightforward—who has megawatts ready to go when big buyers like AI data centers call for power.
24 May 2026
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Constellation Energy Earnings Preview: AI Power Bet Faces a 7% Stock Test

Constellation Energy Earnings Preview: AI Power Bet Faces a 7% Stock Test

Constellation Energy faces Monday’s earnings with the stock still lagging and shareholders waiting to see if its AI-fueled power strategy can translate into real profits instead of just hype. The company plans to release first-quarter 2026 results at 10 a.m. EDT on May 11. Timing played a role here. Shares of Constellation slipped to $303.63 by Friday, down from $322.78 on Wednesday, according to company market data, as traders trimmed exposure ahead of the report. The nuclear-power trade also lost some steam.
9 May 2026
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Constellation Energy Earnings Loom: CEG Stock Faces Monday Test as AI Power Demand Trade Wobbles

Constellation Energy Earnings Loom: CEG Stock Faces Monday Test as AI Power Demand Trade Wobbles

Investors are on edge ahead of Constellation Energy Corp’s first-quarter report Monday, with option pricing suggesting CEG stock could swing roughly 7% before the week is out. Shares finished Friday down 2.4% at $303.63. Timing is key here. Constellation stands out as a major Wall Street play on surging U.S. electricity demand from AI-driven data centers. The company is set to go over its first-quarter 2026 results on May 11, starting at 10:00 a.m. EDT.
9 May 2026
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Constellation Energy Stock Faces Calpine Test After Investors Reject DEI Report Bid

Constellation Energy Stock Faces Calpine Test After Investors Reject DEI Report Bid

Constellation Energy Corp shareholders shot down a proposal calling for a board review of the financial risks and returns tied to the company’s diversity, equity and inclusion programs, with 251.5 million votes against and just 3.0 million in favor. Investors signed off on all management-backed measures: all 11 board members, executive compensation, and PricewaterhouseCoopers LLP as auditor, according to a May 1 Form 8-K. This vote comes just ahead of Constellation’s next earnings report, set for May 11. Investors are expected to push for clarity on the Calpine integration, shifts in power prices, and trends in demand from big customers. The company plans to hold its first-quarter 2026 call at 10 a.m. ET that morning.
2 May 2026
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Constellation Energy Stock Faces New Spotlight After Trump Bond Disclosure and AI Power Push

Constellation Energy Stock Faces New Spotlight After Trump Bond Disclosure and AI Power Push

Constellation Energy landed back in focus after U.S. President Donald Trump’s newest financial disclosure listed the Baltimore-based power producer among the corporate bond issuers he snapped up in March. Investors are tracking the company closely these days, with its AI-fueled electricity business under the microscope. Documents from the U.S. Office of Government Ethics listed 175 transactions, but details only specified value ranges rather than exact figures. Reuters’ math puts Trump’s bond purchases in March at no less than $51 million, with the total stretching to a possible $161 million when tallying every asset class.
26 April 2026
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Constellation Energy’s Three Mile Island Restart Faces a 73-Million-Gallon Test

Constellation Energy’s Three Mile Island Restart Faces a 73-Million-Gallon Test

HARRISBURG, Pennsylvania, April 26, 2026, 10:03 EDT Restarting Three Mile Island Unit 1 isn’t getting any simpler for Constellation Energy Corp. The company needs clearance to pull as much as 73.2 million gallons daily from the Susquehanna River to supply the Crane Clean Energy Center. According to the Susquehanna River Basin Commission, the application is still pending. If approved, about 21 million gallons per day wouldn’t make it back to the river, the commission’s documents show.
26 April 2026
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Constellation Energy Stock Jumps as Microsoft-Backed Three Mile Island Restart Hits a Grid Fight

Constellation Energy Stock Jumps as Microsoft-Backed Three Mile Island Restart Hits a Grid Fight

Shares of Constellation Energy surged Friday. Still, the company’s effort to revive the former Three Mile Island nuclear reactor hit a new hurdle, this time from PJM’s independent market monitor. Monitoring Analytics urged the Federal Energy Regulatory Commission to reject Constellation’s request for a waiver, arguing the company failed to satisfy FERC’s four-part waiver test. That filing throws a spotlight on regulatory risks facing the 835-megawatt Crane Clean Energy Center—the former Three Mile Island Unit 1.
24 April 2026
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Constellation Energy stock price drops 11% as $5 billion LS Power sale sharpens Calpine focus

Constellation Energy stock price drops 11% as $5 billion LS Power sale sharpens Calpine focus

NEW YORK, March 21, 2026, 12:50 PM EDT Constellation Energy slid 10.9% Friday to close at $281.99, erasing gains from earlier in the week. The drop followed its $5 billion PJM asset sale, and a sharp selloff hammered U.S. power stocks. Trading volume spiked: over 6.1 million shares exchanged hands versus 2.4 million the prior session. Vistra gave up 12.6%, NRG Energy was down 9.7%, and Talen Energy also lost 10.9%.
21 March 2026
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Constellation Energy stock pops into holiday weekend as new 5%+ stake filing lands

Constellation Energy stock pops into holiday weekend as new 5%+ stake filing lands

New York, Feb 14, 2026, 15:51 EST — Market’s done for the day. Shares of Constellation Energy Corp ended Friday up 4.46% at $288.43, logging a gain that stood out on a subdued day for the broader market. Volume was unusually high. Still, the stock is a long way off its October high—a sharp reminder of just how quickly sentiment around power stocks linked to the data-center wave can shift.
14 February 2026
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Stock Market Today

  • FTSE 100 slips as homebuilders weigh, oil rises
    June 29, 2026, 1:28 PM EDT. The FTSE 100 ended Monday down 0.2% at 10,484.22 as housebuilders and Babcock International slid after the Bank of England reported weak UK mortgage approvals. Brent crude climbed to $72.85 a barrel after fresh US-Iran tensions. Sterling firmed, with Andy Burnham's leadership pitch stressing fiscal discipline, which seemed to calm worries over UK borrowing. European shares edged a bit lower. In contrast, US stocks rose, the S&P 500 up 0.6%. UK mortgage borrowing for May tumbled to £2.9 billion, the lowest in almost two years. US Treasury yields nudged higher. Markets are watching for progress on the oil ceasefire and for news on cabinet jobs in the UK.
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