Constellation Energy Corporatio (CEG) Stock Price & How to Invest

Last updated October 2026

Short answer

You can invest in Constellation Energy (CEG) by buying shares or fractional shares at any major broker, through a utilities or clean-energy ETF that holds it, or as one holding in a thematic basket. Constellation is the largest US producer of carbon-free electricity, runs the country's biggest nuclear fleet, and since closing its Calpine acquisition in January 2026 also owns a large natural-gas and geothermal fleet. As of October 16, 2026 the shares closed near $274, about 25% lower year to date, for a market value near $97 billion. With datacenter and AI power demand rising, CEG behaves like a clean-power utility with growth and merchant-pricing leverage, not a slow, purely regulated utility.

CEG stock price

As of 2026-10-30, Constellation Energy Corporatio (CEG) last closed at $262.38, down 30.4% over the past year. Over the past 52 weeks it has traded between $236.50 and $378.60.

CEG last close
$262.38
1 day
-0.83%
1 month
+3.29%
1 year
-30.40%
52-week range
$236.50 to $378.60
Last close
2026-10-30

Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Constellation Energy Corporatio's investor relations page. Walnut is informational, not investment advice.

What does Constellation Energy Corporatio (CEG) do?

Constellation Energy (CEG) is the largest producer of carbon-free electricity in the United States, operating the country's biggest fleet of nuclear power plants alongside hydro, wind, and solar assets. Spun off from Exelon in 2022, it generates and sells power and provides energy services to commercial, industrial, government, and residential customers. Constellation's nuclear fleet produces large, steady volumes of around-the-clock, low-carbon electricity, which has become increasingly valuable as datacenters, electrification, and AI computing drive up demand for reliable clean power. The company has pursued long-term power-supply agreements with large energy buyers, including technology companies seeking carbon-free electricity for datacenters, and on January 7, 2026 closed its acquisition of Calpine, a major natural-gas and geothermal generator, which broadened its generation mix and roughly lifted trailing revenue to about $31 billion. The Justice Department required divestitures as a condition: the 606 MW Brazos Valley plant in Texas was sold to LS Power for about $860 million (closed October 14, 2026), and about 4.4 GW of mostly gas assets in Delaware and Pennsylvania are being sold to LS Power with closing expected by the end of 2026. Headquartered in Baltimore, Maryland, Constellation benefits from federal clean-energy incentives, including production tax-credit support for existing nuclear plants.

The operating story in 2026 has been stronger than the share price. Second quarter adjusted operating EPS was $2.55, up from $1.91 a year earlier and above the roughly $2.28 estimate, and management raised 2026 adjusted operating EPS guidance to $11.50 to $12.50. In the fall Constellation signed a 20-year agreement with Google to add about 890 MW of new nuclear capacity through upgrades at 11 units in Illinois, Pennsylvania and New Jersey (an investment above $4.3 billion, plus a separate 15-year supply deal covering 2,700 MW from existing plants), and a 20-year, 690 MW agreement with Amazon at Calvert Cliffs. Even so, at about $274.48 on October 16, 2026 the stock is down about 25% year to date and about 31% over one year, well below a 52-week high near $406, as sentiment around AI power demand cooled. Third quarter results are due November 9, 2026.

What's driving Constellation Energy Corporatio (CEG)?

1. Datacenter and AI power demand.

The buildout of datacenters and AI computing is driving a step-change in electricity demand, especially for reliable, around-the-clock clean power. As the largest US producer of carbon-free electricity, Constellation is positioned to sign long-term, high-value supply agreements with large technology buyers seeking firm clean power. That positioning turned into signed contracts in 2026: the Google agreement (about 890 MW of new nuclear capacity plus 2,700 MW from existing generation), the Amazon agreement at Calvert Cliffs (690 MW, including about 190 MW of new capacity due 2030-2032), and roughly 920 MW of other long-term nuclear PPAs disclosed with second quarter results.

2. Nuclear fleet value and clean-energy support.

Constellation's large nuclear fleet produces steady baseload low-carbon electricity that is hard to replicate. Federal clean-energy incentives, including production tax-credit support for existing nuclear plants, provide a revenue floor, while tightening power markets raise the value of dependable carbon-free generation.

3. Scale, contracts, and integrating Calpine.

Constellation's scale lets it serve large commercial and industrial customers and pursue premium long-term power-supply contracts. The Calpine acquisition, closed January 7, 2026, added significant natural-gas and geothermal generation, broadening its mix and its ability to offer firm power across more markets. The required divestitures are under way (Brazos Valley sold for about $860 million in October 2026, the 4.4 GW PJM package expected to close by year end), and the company has kept adding selectively, agreeing to buy the Rhode Island State Energy Center for about $715 million.

What are the risks to Constellation Energy Corporatio (CEG)?

Constellation has merchant exposure, so its results depend partly on wholesale power and commodity prices, which can be volatile. Policy and regulatory shifts, including changes to clean-energy incentives or nuclear-support mechanisms, can materially affect economics. Nuclear operations carry safety, operational, and outage risk, and any major industry incident can shift sentiment, while the upgrade program behind the Google deal (more than $4.3 billion, first capacity expected by 2028) carries construction and cost risk. The Calpine integration added scale and leverage: total debt is about $24.7 billion against roughly $0.7 billion of cash, and trailing free cash flow is about negative $6.6 billion after the deal. The stock re-rated sharply on AI-power optimism and has since given much of it back, falling about 25% in 2026 through October 16 and reacting to swings in sentiment around AI infrastructure names, so sentiment shifts can drive volatility in either direction.

What is the Constellation Energy Corporatio (CEG) forecast?

22 analysts publish price targets on CEG, averaging $337.57 against a $271.37 price as of October 2026, or +24.4%. The published targets run from $238.00 to $395.00, a moderate spread, and the ratings split 20 buy, 3 hold, 1 sell. Over the last six months there has been 1 raise and 7 cuts among the published actions. A price target is what an analyst published on a date, not a prediction, and sell-side ratings skew positive across the whole market.

Read the full CEG forecast and price target for the target table, the recent rating actions by firm, and how the consensus has shifted.

Is CEG a buy or a sell?

We give no verdict on Constellation Energy Corporatio. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.

The case for buying. Datacenter and AI power demand. The buildout of datacenters and AI computing is driving a step-change in electricity demand, especially for reliable, around-the-clock clean power. The most optimistic published target, $395.00, assumes this works close to its best case.

The case against. Constellation has merchant exposure, so its results depend partly on wholesale power and commodity prices, which can be volatile. The most pessimistic target, $238.00, is roughly what CEG is worth if this bites instead.

Read the full bull and bear case on CEG, including what would have to change to break either one. Walnut is not an investment adviser.

Has Constellation Energy Corporatio (CEG) split its stock?

No. Constellation Energy Corporatio (CEG) has not split its stock in the last 10 years. That is a statement about the window we check rather than about the company’s entire history, so an older split is possible. It also matters less than it once did: fractional shares mean a high price per share no longer keeps smaller investors out, which removed most of the practical reason to split.

How is Constellation Energy Corporatio (CEG) valued? (approximate, October 2026)

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Constellation Energy Corporatio's investor relations page or your broker.

  • Revenue (TTM): ~$31.3 billion (Q2 2026 up ~23% YoY with Calpine)
  • Q2 2026 adjusted operating EPS: $2.55 vs ~$2.28 estimate (GAAP $1.42)
  • 2026 adjusted operating EPS guidance: $11.50-12.50 (raised)
  • Net income (TTM): ~$3.5 billion
  • P/E trailing / forward: ~27x / ~21x
  • Dividend yield: ~0.6% ($1.71 annualized)
  • Market cap: ~$97 billion
  • Net debt: ~$24 billion (debt ~$24.7B, cash ~$0.7B)

Constellation still trades at a higher multiple than most regulated utilities, about 27 times trailing and 21 times forward earnings, because investors price in growth from AI and datacenter power demand and the premium value of carbon-free baseload generation. The multiple has compressed in 2026 even as guidance rose and big tech contracts were signed, which leaves the stock well below the analyst mean target near $338. All figures are approximate as of October 16, 2026 and move with power prices and the share price.

Which ETFs hold Constellation Energy Corporatio (CEG)?

If you want CEG exposure as part of a larger bundle rather than directly, these ETFs hold it meaningfully. Weights are approximate and refresh quarterly.

ETFName% in CEGExpense ratio
XLUState Street Utilities Select Sector SPDR ETF6.74%0.08%
NLRVanEck Uranium and Nuclear ETF8.5%0.52%
VOVanguard Morningstar Mid-Cap ETF0.85%0.03%
IFRAiShares U.S. Infrastructure ETF2.62%0.30%
VOTVanguard Morningstar Mid-Cap Growth ETF2.00%0.05%
VPUVanguard Utilities Index Fund ETF Shares5.9%0.09%

What themes does Constellation Energy Corporatio (CEG) fit?

These are the investment theses CEG naturally fits into. Each links to a full theme guide listing every other stock that belongs and the ETFs commonly used as a passive proxy.

Who competes with Constellation Energy Corporatio (CEG)?

Independent power producers

Constellation competes with other large merchant and independent power producers such as Vistra and NRG Energy, which also have leverage to rising power demand and, in some cases, nuclear or gas generation serving datacenters and electrification.

Regulated and integrated utilities

Large regulated and integrated utilities such as NextEra Energy, Duke Energy, Southern Company, and Dominion compete in power generation and supply, though many earn more from rate-regulated assets than from merchant generation. Constellation is more exposed to market power prices.

Clean-power and nuclear peers

For exposure to carbon-free and nuclear power, Constellation is compared with NextEra (large renewables and some nuclear), Vistra (which also owns nuclear), and uranium and nuclear-technology names higher up the fuel chain. It is the clearest large-cap pure play on operating US nuclear generation.

What stocks are similar to Constellation Energy Corporatio (CEG)?

Other names that sit close to CEG: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.

How to invest in Constellation Energy Corporatio (CEG)

There are three common ways to get CEG exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it (XLU, NLR, VO), which spreads the position across many companies. Or build it into a focused thematic portfolio, so CEG sits alongside other stocks that express the same thesis.

Walnut takes the portfolio route. Describe a thesis where CEG fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.

The bottom line on Constellation Energy Corporatio (CEG)

Constellation Energy (CEG) is the largest US carbon-free power producer, whose thesis rests on its nuclear fleet, surging clean-power demand from datacenters and AI, and long-term supply deals with large buyers such as the 20-year Google and Amazon nuclear agreements signed in the fall of 2026. In a portfolio it behaves as a power-and-utility holding with more growth and pricing leverage than a typical regulated utility, balanced by commodity and policy sensitivity.

More on Constellation Energy Corporatio (CEG)

Whether CEG is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is CEG a buy or a sell?, and where the stock could go from here in the CEG stock forecast.

For income investors, whether CEG pays a dividend and how the payout looks is covered in does CEG pay a dividend? And to weigh CEG against a peer, read the full side-by-side comparisons: CEG vs VST and CEG vs CCJ.

Wondering how CEG fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.

Investing in Constellation Energy Corporatio with AI

Connect the broker you already use and ask Walnut's AI how CEG fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.

FAQ

What is Constellation Energy's (CEG) ticker symbol?

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CEG, listed on Nasdaq. Officially Constellation Energy Corporation, headquartered in Baltimore, Maryland. It was spun off from Exelon in 2022 and trades during US market hours at major US brokerages.

What does Constellation Energy (CEG) do?

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Constellation Energy generates and sells electricity and provides energy services. It is the largest US producer of carbon-free electricity and operates the country's biggest nuclear fleet, plus hydro, wind, and solar. It sells power to commercial, industrial, government, and residential customers and pursues long-term supply deals, including with technology companies for datacenters.

Who are Constellation Energy's (CEG) main competitors?

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Among independent power producers, Vistra and NRG Energy. Among large regulated and integrated utilities, NextEra Energy, Duke Energy, Southern Company, and Dominion. For carbon-free and nuclear exposure specifically, NextEra and Vistra are the closest large-cap peers.

Is Constellation Energy (CEG) a nuclear stock?

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Yes, in large part. Constellation operates the largest nuclear fleet in the United States, and nuclear is central to its position as the biggest US producer of carbon-free electricity. It is widely viewed as the clearest large-cap way to invest in operating US nuclear power generation, with additional hydro, wind, and solar assets.

Why is Constellation Energy (CEG) tied to AI and datacenters?

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AI computing and datacenters are driving a sharp rise in electricity demand, especially for reliable, around-the-clock clean power. As the largest US producer of carbon-free electricity, Constellation is positioned to sign long-term, high-value power-supply agreements with large technology buyers, which is a key part of its growth narrative.

What is Constellation Energy's (CEG) P/E ratio?

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About 27 times trailing earnings and about 21 times forward earnings as of October 16, 2026, still above most regulated utilities because of growth expectations from AI and datacenter power demand. The multiple has come down during 2026 as the share price fell about 25% while earnings guidance rose. It moves with the share price and power prices.

Does Constellation Energy (CEG) pay a dividend?

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Yes, but it is modest: about $1.71 per share annualized, a yield near 0.6% as of October 16, 2026, lower than many traditional utilities because investors value it more for growth. The payout is about 16% of earnings, and it has raised the dividend since the spin-off.

Is Constellation Energy (CEG) buying Calpine?

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It already did. Constellation closed the Calpine acquisition on January 7, 2026, adding a major natural-gas and geothermal fleet. As a condition of approval, the Justice Department required divestitures: the Brazos Valley Energy Center in Texas was sold to LS Power for about $860 million in October 2026, and about 4.4 GW of mostly gas plants in Delaware and Pennsylvania are being sold to LS Power, with closing expected by the end of 2026.

Which ETFs have the most Constellation Energy (CEG) exposure?

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Utilities and clean-energy ETFs hold Constellation at meaningful weights, such as XLU (Utilities Select) and broad utility funds. Some nuclear and clean-power thematic ETFs also hold it. It is in S&P 500 and Nasdaq-100 funds like VOO and QQQ at smaller weights. Check each fund's holdings.

Is Constellation Energy (CEG) in the S&P 500?

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Yes. Constellation Energy is a constituent of the S&P 500 and is also in the Nasdaq-100. It has become one of the larger power-and-utility names in those indexes since its 2022 spin-off from Exelon, partly on AI-power demand optimism.

How did Constellation Energy do in its latest quarter?

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In the second quarter of 2026, reported August 6, adjusted operating earnings were $2.55 per share, up from $1.91 a year earlier and above the roughly $2.28 consensus, while GAAP EPS was $1.42. Revenue rose about 23% to roughly $7.5 billion with Calpine included, and management raised 2026 adjusted operating EPS guidance to $11.50 to $12.50. Third quarter results are due November 9, 2026, with consensus near $3.73 per share.

How has CEG stock performed in 2026?

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As of October 16, 2026 CEG closed at $274.48, down about 25% year to date and about 31% over one year, though up about 8% over the past month after the Google nuclear deal. The 52-week range is roughly $229 to $406.

What is the Constellation and Google nuclear deal?

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Announced in October 2026, it is a 20-year power purchase agreement under which Constellation will add about 890 MW of new nuclear capacity to the PJM grid through upgrades at 11 of its units in Illinois, Pennsylvania and New Jersey, with the first upgrade expected by 2028 and an investment above $4.3 billion. A separate 15-year agreement covers 2,700 MW from existing generation.

Is Constellation Energy (CEG) a good stock to buy?

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Descriptive, not a recommendation. Constellation offers the largest US carbon-free power fleet, leverage to surging datacenter and AI power demand, clean-energy policy support, the now-closed Calpine deal, and new 20-year Google and Amazon nuclear contracts, balanced against merchant power-price volatility, policy risk, nuclear operational risk, acquisition risk, and a stock that re-rated sharply and then fell about 25% in 2026. Whether it fits a given portfolio depends on your goals, time horizon, and risk tolerance. Walnut is informational, not investment advice.

Guides that feature CEG

CEG is one of the names covered in these guides. Each one puts the stock next to its peers so you can see where it fits rather than judging it alone.

Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Constellation Energy Corporatio's investor relations page or your broker before making investment decisions.