Key Takeaways
- Constellation Energy stock has declined 26.2% in 2025, with shares last trading at $270.26
- Discounted cash flow analysis indicates fair value of $484.34, implying the shares are undervalued by 44.2%
- The stock’s P/E ratio of 25.46x sits below the calculated fair ratio of 32.85x
- Retail giant Walmart inked its inaugural nuclear energy purchase deal with Constellation for 176 megawatts from Illinois’s Dresden Clean Energy Center
- Bernstein SocGen assigned an outperform rating, emphasizing CEG’s 22-gigawatt nuclear portfolio and Calpine integration
Shares of Constellation Energy have experienced significant turbulence throughout 2025. With the stock finishing at $270.26, investors have witnessed a year-to-date decline of 26.2% and a 15.3% drop over the trailing twelve months. This downturn has prompted investors focused on the nuclear energy sector to reassess valuation metrics.
Constellation Energy Corporation, CEG
While recent performance has disappointed, the three-year total return remains impressive at 203.6%, highlighting the stock’s substantial historical gains.
A comprehensive Discounted Cash Flow valuation conducted by Simply Wall St arrives at an intrinsic value estimate of $484.34 per share for CEG. This represents a substantial 44.2% premium over current trading levels, suggesting meaningful undervaluation. The methodology employs a two-stage free cash flow to equity framework, starting from approximately $601 million in recent twelve-month free cash flow and projecting growth to around $7.3 billion by decade’s end.
From a valuation multiple perspective, CEG currently commands a price-to-earnings ratio of 25.46x. While this exceeds both the Electric Utilities sector average of 21.62x and comparable peers at 21.43x, Simply Wall St’s proprietary “Fair Ratio” calculation for Constellation stands at 32.85x. This adjusted metric accounts for company-specific growth dynamics and risk factors, suggesting the current earnings multiple remains attractive.
Historic Walmart Nuclear Agreement
The most significant development emerged this Monday when Constellation and Walmart unveiled a comprehensive long-term nuclear energy procurement contract. The agreement encompasses roughly 176 megawatts of wholesale electricity from the Dresden Clean Energy Center located in Illinois, including 30 megawatts from capacity expansion projects.
Walmart’s commitment involves purchasing energy output, associated environmental credits, and capacity across two separate 15-year contract periods commencing in 2029 and 2030. This landmark transaction marks Walmart’s entry into nuclear power procurement and represents one of the earliest such arrangements between a leading American retailer and nuclear generation facility.
The contracted power will energize a sophisticated perishable goods distribution center currently under development by Walmart in Belvidere, Illinois. Additionally, the arrangement facilitates planned uprate projects at Dresdenātechnical enhancements designed to extract additional generating capacity from existing reactor infrastructure.
Dresden Clean Energy Center operates under licenses extending through 2049 and 2051, which Constellation successfully renewed in December 2025. The facility provides employment for over 1,100 workers.
Wall Street Perspectives and Corporate Developments
Bernstein SocGen recently launched coverage of CEG shares with an outperform recommendation. The investment bank’s bullish stance centers on Constellation’s substantial 22-gigawatt nuclear generation portfolio and strategic benefits from the Calpine acquisition.
Calpine, now functioning as a Constellation operating division, recently completed a 25-megawatt geothermal capacity expansion at California’s Geysers complex. This incremental capacity will deliver power sufficient for more than 25,000 residences on an annual basis.
Separately, Constellation disclosed plans for a secondary stock offering totaling 11 million shares priced at $281 per share, though the company itself will not retain any proceeds from this transaction.
William Blair modified its proprietary data center and power index score downward from 78 to 75, citing headwinds in data center project execution and constraints affecting power availability. Simultaneously, the firm increased its projection for the anticipated U.S. data center power supply-demand imbalance expected in 2030.
Constellation’s total generation portfolio spans 55 gigawatts across diverse technologies including nuclear, natural gas, geothermal, hydroelectric, wind, and solar installations.
Get 3 Free Stock Ebooks
Discover top-performing stocks in AI, Crypto, and Technology with expert analysis.
- Top 10 AI Stocks - Leading AI companies
- Top 10 Crypto Stocks - Blockchain leaders
- Top 10 Tech Stocks - Tech giants
