Key Highlights
- Constellation Energy stock has declined 26.2% year to date, with the last recorded price at $270.26
- Discounted cash flow analysis indicates an intrinsic valuation of $484.34 per share, implying 44.2% potential upside
- The stock’s current P/E ratio of 25.46x sits below the calculated fair value ratio of 32.85x
- Retail giant Walmart has executed its inaugural nuclear energy purchase agreement with Constellation, securing 176 megawatts from the Dresden Clean Energy Center
- Bernstein SocGen launched coverage with an outperform recommendation, emphasizing CEG’s 22-gigawatt nuclear portfolio and Calpine integration
The 2026 trading performance for Constellation Energy has been challenging. Shares closed at $270.26, representing a 26.2% year-to-date decline and a 15.3% drop over the trailing twelve months. This downward pressure has refocused attention on the company’s fundamental valuation metrics among investors tracking the nuclear energy sector.
Constellation Energy Corporation, CEG
While recent performance has disappointed, the three-year total return remains impressive at 203.6%, highlighting the stock’s substantial appreciation over the longer term.
Valuation analysis conducted by Simply Wall St utilizing a Discounted Cash Flow methodology arrives at an intrinsic value estimate of $484.34 per share for CEG. This calculation suggests a 44.2% valuation discount relative to the current market price, positioning the stock as potentially undervalued. The model employs a two-stage free cash flow to equity framework, incorporating the most recent twelve-month free cash flow figure of approximately $601 million and forecasting cash generation expanding to roughly $7.3 billion by the end of the decade.
From a price-to-earnings perspective, CEG currently commands a multiple of 25.46x. This exceeds both the Electric Utilities sector median of 21.62x and the comparable peer group average of 21.43x. Nevertheless, Simply Wall St’s proprietary “Fair Ratio” calculation for CEG stands at 32.85x, which incorporates adjustments for the company’s expansion trajectory and risk profile. When measured against this benchmark, the existing P/E multiple appears compressed.
Historic Walmart Nuclear Energy Agreement
The most significant development emerged on Monday. Constellation Energy and Walmart revealed a comprehensive long-term nuclear power procurement contract encompassing approximately 176 megawatts of wholesale electricity from the Dresden Clean Energy Center located in Illinois. This volume includes 30 megawatts derived from capacity expansion initiatives.
The arrangement will see Walmart procure energy, associated environmental credits, and capacity across two consecutive 15-year periods commencing in 2029 and 2030. This transaction marks Walmart’s inaugural nuclear power procurement agreement and represents one of the earliest arrangements of this nature between a prominent U.S. retail corporation and a nuclear generation facility.
The electricity will power a sophisticated perishable goods distribution facility that Walmart is constructing in Belvidere, Illinois. The contract simultaneously supports planned uprate projects at Dresden—efficiency enhancement initiatives designed to boost generation output from existing reactor units.
The Dresden Clean Energy Center maintains operating licenses extending through 2049 and 2051. Constellation secured the renewal of these licenses in December 2025. The facility currently maintains a workforce exceeding 1,100 employees.
Wall Street Coverage and Recent Developments
Bernstein SocGen recently launched research coverage on CEG with an outperform designation. The investment firm emphasized Constellation’s substantial 22-gigawatt nuclear generation portfolio and its strategic acquisition of Calpine as fundamental elements supporting their bullish thesis.
Calpine, now functioning as a Constellation business segment, recently completed a 25-megawatt geothermal capacity expansion at The Geysers facility in California. This incremental capacity will deliver electricity sufficient to serve more than 25,000 residential customers on an annual basis.
Constellation additionally announced a secondary equity offering involving 11 million shares priced at $281 per share, with proceeds from this transaction flowing to selling shareholders rather than the company.
William Blair modified its data center and power sector index rating to 75 from a previous level of 78, citing headwinds in data center project execution and electricity supply limitations. The research firm simultaneously elevated its projection for the anticipated U.S. data center power supply-demand imbalance in 2030.
CEG maintains operational control of 55 gigawatts of aggregate generation capacity distributed across nuclear, natural gas, geothermal, hydroelectric, wind, and solar energy installations.
