Nuclear Energy Stocks Shine in 2025
Nuclear energy stocks have emerged as top performers in the energy sector throughout 2025. Key players include Oklo, which recorded a triple-digit gain, and both Centrus Energy and Cameco, which also saw significant market success. The VanEck Uranium and Nuclear ETF (NYSEMKT: NLR) benefited as well, achieving over a 50% gain in 12 months.
Constellation Energy Expands Its Dominance
Constellation Energy (NASDAQ: CEG) continues to lead the industry, operating the largest nuclear fleet in the U.S. In June 2025, the company signed a 20-year agreement with Meta Platforms to supply power from its Clinton Clean Energy Center starting in 2027. Additionally, Constellation has acquired Calpine, making it the largest electricity producer in the U.S., while also planning to restart the former Three Mile Island site with Microsoft’s support.
Future Potential and Market Position
Looking ahead, Constellation may develop next-generation reactors to meet the rising demand from AI data centers, positioning itself for growth over the next decade despite not offering the explosive growth potential of smaller startups like Oklo.
