Best Nuclear Stocks

Nuclear stocks in the covered universe — US-listed nuclear-power companies (generation, fuel supply and small modular reactors), ranked by market capitalization. Every figure is delayed data from SEC EDGAR + market data, shown with its as-of date.

• Constellation Energy (CEG) Utilities — Constellation Energy is the nation's largest producer of carbon-free electricity, leveraging a massive nuclear fleet to serve retail and wholesale energy markets. ask →
• Southern Company (SO) Utilities — A diversified energy holding company providing regulated electric and natural gas service, as well as competitive wholesale power and energy solutions. ask →
• American Electric Power (AEP) Utilities — A major US electric utility holding company providing generation, transmission, and distribution services to millions of retail and wholesale customers. ask →
• Entergy (ETR) Utilities — Entergy is a major US utility provider pivoting its infrastructure to support high-growth energy demand from the expanding data center market. ask →
• Public Service Enterprise Group (PEG) Utilities — A regulated utility and carbon-free nuclear power generator providing essential energy services in New Jersey. ask →
• Curtiss-Wright (CW) Industrials — A leading provider of mission-critical engineered solutions for demanding aerospace, defense, and energy applications. ask →
• Talen Energy (TLN) Utilities — Talen Energy is an independent power producer operating a portfolio of nuclear and thermal generation assets serving wholesale electricity markets. ask →
• BWX Technologies (BWXT) Industrials — BWX Technologies is a leading nuclear technology provider that engineers and manufactures critical components and fuel for US Navy submarines and national security programs. ask →
• Pinnacle West Capital (PNW) Utilities — A major vertically integrated electric utility company providing power to Arizona through its subsidiary, Arizona Public Service Company. ask →
• Huntington Ingalls Industries (HII) Industrials — Huntington Ingalls Industries is the primary builder of the U.S. Navy's nuclear-powered aircraft carriers and a major provider of critical national security and defense technologies. ask →
• Solstice Advanced Materials (SOLS) Materials — Solstice Advanced Materials is a specialty chemicals provider and spin-off of Honeywell that manufactures complex, highly regulated materials. ask →
• LANTHEUS HOLDINGS INC (LNTH) Health Care — Lantheus is a specialist in diagnostic imaging agents and radiopharmaceuticals that help clinicians visualize cardiovascular conditions and oncological disease states. ask →
• Oklo Inc. (OKLO) Utilities — Oklo is an advanced nuclear technology company developing small-scale fission powerhouses and integrated fuel recycling capabilities to provide clean energy. ask →
• URANIUM ENERGY CORP (UEC) Energy — A U.S.-based uranium producer scaling domestic ISR mining and building a vertically integrated supply chain for the nuclear fuel market. ask →
• MIRION TECHNOLOGIES INC CLASS A (MIR) Information Technology — Mirion Technologies is a leading provider of mission-critical radiation detection, measurement, and monitoring equipment for the medical, nuclear, and defense industries. ask →
• NUSCALE POWER CORP CLASS A (SMR) Industrials — NuScale Power is a developer of small modular nuclear reactor technology designed to provide scalable, carbon-free energy for the global power and industrial markets. ask →
• ENERGY FUELS INC (UUUU) Energy — Energy Fuels is building a vertically integrated, domestic U.S. supply chain for nuclear fuel, rare earth elements, and critical minerals essential for clean energy and national security. ask →
• CENTRUS ENERGY CORP CLASS A (LEU) Energy — Centrus Energy is a supplier of nuclear fuel and enrichment services, currently focused on scaling domestic production of advanced HALEU fuel for next-generation reactors. ask →
• NANO NUCLEAR ENERGY INC (NNE) Industrials — Nano Nuclear Energy is a technology-focused company developing modular microreactors and providing nuclear fuel, transportation, and technical consulting services. ask →
• ASP ISOTOPES INC (ASPI) Materials — An advanced materials firm specializing in isotope enrichment for semiconductors, medicine, and nuclear energy, currently pivoting toward commercial production and subsidiary spin-offs. ask →
• UR ENERGY INC (URG) Energy — A U.S.-based, low-cost ISR uranium producer operating in Wyoming to supply the growing nuclear power generation market. ask →
• Terrestrial Energy Inc. (IMSR) Industrials — Terrestrial Energy is developing a proprietary Generation IV Integral Molten Salt Reactor (IMSR) to provide clean, high-temperature thermal energy and electricity for industrial and grid-scale applications. ask →
• PERMA FIX ENVIRONMENTAL SERVICES I (PESI) Industrials — Perma-Fix is a specialized nuclear services firm providing critical waste management, decontamination, and environmental restoration services, with a strategic focus on the Hanford DFLAW program and proprietary PFAS destruction technology. ask →
• LIGHTBRIDGE CORP (LTBR) Energy — Lightbridge is developing proprietary, high-performance metallic nuclear fuel designed to increase the power output and safety of existing commercial nuclear power plants. ask →
• ENCORE ENERGY CORP (EU) Energy — A U.S.-based uranium producer focused on environmentally friendly In-Situ Recovery extraction to supply the growing domestic nuclear energy market. ask →
• Eagle Nuclear Energy Corp. (NUCL) Materials — A vertically integrated energy company combining domestic uranium mining in Oregon with the development of proprietary small modular reactor (SMR) technology. ask →

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Data: SEC EDGAR (filings) + market data (fundamentals, delayed daily-close). Figures shown with their as-of date.

Last updated 2026-10-08.

Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date.