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Constellation Energy Just Signed Its First Walmart Nuclear Deal. The Contracting Wave Investors Waited For Is Starting.

Wiltone Asuncion7 minute read
Reviewed by: David Hanson
Last updated Aug 18, 2026

@Quang Nguyen Vinh from Pexels via Canva, @Nuttapong punna from nuttapong punna's Images via Canva

Key Stats for Constellation Energy Stock

  • Current Price: $278.20
  • Target Price (Mid): ~$521
  • Street Target: ~$348
  • Potential Total Return: ~87%
  • Annualized IRR: ~15% / year

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What Happened?

Constellation Energy (CEG) spent the better part of a year telling investors the same thing: the demand for its nuclear power was real, the customers were serious, and the contracts would come once regulators drew clear lines. The stock did not believe it. Shares closed at $278.20 on August 17, roughly 33% below the 52-week high of $412.70 and about $50 above the year’s low. The pain has already been severe: the stock fell 41.45% from peak to a July 1 trough before clawing part of it back.

Then the second quarter gave the promise a number. Constellation signed roughly 920 megawatts of new long-term nuclear agreements, including the first nuclear power purchase agreement in Walmart’s history and the first deal of its kind for any major retailer.

The First Retailer to Buy Nuclear Sets a Template

The Walmart agreement matters beyond its size. Corporate clean-energy buyers have spent a decade signing wind and solar contracts because those were the products on the shelf. A retailer signing a nuclear PPA is new, and it signals that large buyers now want around-the-clock carbon-free power, not just the intermittent kind.

CEO Joe Dominguez put it directly on the August 6 call: “Walmart is helping to define how corporate customers think about nuclear energy, reflecting a growing recognition that achieving ambitious decarbonization goals requires access to around-the-clock carbon-free generation.” If the largest retailer in America decides firm nuclear output is worth a long-term commitment, the buyer pool widens past the handful of hyperscalers the market has fixated on.

The 920 megawatts signed this quarter carry an average duration of 18.5 years and are with investment-grade customers, per management. One caveat matters for anyone pricing the stock today: these are signings, not near-term revenue. Management said the agreements carry later start dates and are not expected to materially affect 2029 earnings, so the cash flow arrives years out even though the commitment is locked now. 

What the quarter proves is intent, that creditworthy buyers will sign decades-long nuclear deals, and it lifts the share of Constellation’s clean baseload output under long-term contract to roughly 30%. Crucially for the durability of that revenue, management confirmed the deals do not hinge on pending grid rules: as commercial head Dan Eggers said, “These deals are not dependent upon those outcomes.” Broader PJM interconnection rules for large loads are still being finalized, with co-location clarity now expected in the first half of 2027, but the contracts landing now stand on their own.

Constellation Energy Drawdowns (TIKR)

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What the Q2 Print Did and Didn’t Prove

Constellation posted Q2 adjusted operating EPS of $2.55, up $0.64 year over year and about 12% ahead of the $2.28 Street estimate, driven by Calpine accretion, higher PJM capacity prices, and commercial optimization. Management raised full-year guidance to $11.50 to $12.50 per share, a $0.50 midpoint lift, deployed about $2.2 billion into buybacks over four months, and agreed to sell the Brazos Valley gas plant to LS Power for $860 million, clearing the last DOJ condition tied to Calpine.

Shares rose on the August 6 report before giving the gains back, and on August 11, Argus trimmed its target to $325 from $350, citing higher interest rates rather than anything company-specific. Part of the caution is fair: a slice of the guidance raise traces to a lower share count from buybacks rather than a bigger earnings pool, and revenue of $7.50 billion grew 23% year over year but came in about 1.6% below the $7.63 billion Street estimate. The beat was real but incomplete.

On next-twelve-month EV/EBITDA, CEG trades near 14.3x against a peer mean closer to 11.2x across NextEra, Duke, and Southern, per TIKR’s Competitors data. On forward P/E, it sits around 22.9x versus a peer mean near 17.6x. That premium is defensible only if the growth and contracting story plays out; a straight utility multiple would put the stock far lower.

Constellation Energy Revenue & EBITDA (TIKR)

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TIKR Advanced Model Analysis

  • Current Price: $278.20
  • Target Price (Mid): ~$521
  • Potential Total Return: ~87%
  • Annualized IRR: ~15% / year
Constellation Energy Advanced Valuation Model (TIKR)

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TIKR’s mid-case scenario, realized at the end of 2030, points to a target around $521, implying roughly 87% total return and an IRR near 15% per year over about 4.4 years.

  • Revenue drivers: the long-term nuclear PPAs now being signed, which convert idle pricing power into contracted cash flow as their later start dates arrive, and rising utilization of the acquired Calpine gas fleet as data-center load builds.
  • Margin driver: net income margin expanding toward the mid-teens, near 16% in the mid case, as contracted volumes and PTC-linked nuclear economics scale.
  • Upside: contracting accelerates as PJM finalizes rules, and the fleet’s fixed-price clean output holds a durable premium through 2050 and beyond.
  • Primary risk: the buildout stays slow, or power prices soften faster than contracts backfill, compressing the multiple toward a normal utility and erasing the modeled return.

Conclusion

The next test is disclosure velocity. Management said it will follow customers’ lead on timing, so watch the back half of 2026 for the count and size of new contracts, and watch PJM’s fall procurement auction, with results due by year-end. Keep adding signed megawatts on schedule, and the gap between the $278 price and the roughly $348 Street mean looks like a lag, not a verdict. If the third-quarter call shows contracting stalling again, an already thin patience gets thinner.

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Should You Invest in Constellation Energy?

The only way to really know is to look at the numbers yourself. TIKR gives you free access to the same institutional-quality financial data that professional analysts use to answer exactly that question.

Pull up Constellation Energy, and you’ll see years of historical financials, what Wall Street analysts expect for revenue and earnings in the quarters ahead, how valuation multiples have moved over time, and whether price targets are trending up or down.

You can build a free watchlist to track Constellation Energy alongside every other stock on your radar. No credit card required. Just the data you need to decide for yourself.

Analyze Constellation Energy on TIKR Free →

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Disclaimer:

Please note that the articles on TIKR are not intended to serve as investment or financial advice from TIKR or our content team, nor are they recommendations to buy or sell any stocks. We create our content based on TIKR Terminal’s investment data and analysts’ estimates. Our analysis might not include recent company news or important updates. TIKR has no position in any stocks mentioned. Thank you for reading, and happy investing!

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