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 + Finnhub, shown with its as-of date.

• Southern Company (SO) Utilities — A major Southeastern utility holding company providing diversified electric and natural gas service alongside wholesale power and infrastructure solutions. ask →
• Constellation Energy (CEG) Utilities — Constellation Energy is the largest U.S. producer of carbon-free electricity, leveraging a massive nuclear-heavy fleet to lead the transition to a clean energy economy. ask →
• Duke Energy (DUK) Utilities — Duke Energy is a regulated utility giant serving 8.7 million electric and natural gas customers across the Southeast and Midwest through vertically integrated generation, transmission, and distribution. ask →
• American Electric Power (AEP) Utilities — A major vertically integrated electric utility holding company generating and distributing power across the eastern and south-central US, with a regulated rate base and competitive generation arm in deregulated markets. ask →
• Vistra Corp . (VST) Utilities — Vistra is a massive integrated power generator and retail electricity provider serving 5 million customers across 18 states with a diverse 44,000 MW fleet including nuclear, natural gas, coal, and renewables. ask →
• Entergy (ETR) Utilities — Regional electric utility serving the lower Mississippi Valley with a diverse generation fleet including nuclear, natural gas, and renewable assets, positioned to capitalize on data center demand growth. ask →
• Xcel Energy (XEL) Utilities — Xcel Energy is a regulated electric and natural gas utility serving millions of customers across the upper Midwest, Colorado, and the Southwest with a focus on renewable energy transition and grid modernization. ask →
• Public Service Enterprise Group (PEG) Utilities — A major New Jersey utility operator providing regulated electricity and gas distribution alongside nuclear and fossil generation assets across the Northeast. ask →
• Ameren (AEE) Utilities — A major Midwest utility holding company delivering electricity and natural gas to Missouri and Illinois while operating high-voltage transmission infrastructure across the MISO. ask →
• GE HealthCare (GEHC) Health Care — GE HealthCare is a leading medical technology company providing advanced diagnostic imaging, patient monitoring, and AI-driven clinical software to help clinicians manage complex diseases. ask →
• Curtiss-Wright (CW) Industrials — Curtiss-Wright is a mission-critical aerospace and defense technology specialist with deep embedded positions in military platforms, commercial aviation, and nuclear power systems. ask →
• Talen Energy (TLN) Utilities — A nuclear and fossil-fuel independent power producer generating and selling electricity into wholesale markets with significant capacity in the Northeast and West. ask →
• BWX Technologies (BWXT) Industrials — BWX Technologies is a critical provider of nuclear reactors, fuel, and components for the U.S. Navy and the commercial nuclear power industry, supported by over a century of specialized nuclear engineering expertise. ask →
• Pinnacle West Capital (PNW) Utilities — Arizona's largest electric utility company providing power generation, transmission, and distribution to 1.4 million customers across 11 counties, with a diverse portfolio anchored by nuclear and renewable energy. ask →
• Huntington Ingalls Industries (HII) Industrials — America's largest shipbuilder designing and constructing nuclear-powered aircraft carriers, guided-missile destroyers, and amphibious assault ships plus defense technology solutions. ask →
• Solstice Advanced Materials (SOLS) Materials — A diversified advanced materials leader spun from Honeywell, providing low-global-warming refrigerants, nuclear conversion services, semiconductor materials, and high-strength specialty fibers to HVAC, automotive, nuclear, semiconductor and defense end markets. ask →
• Oklo Inc. (OKLO) Utilities — Oklo is developing integrated small modular reactors paired with advanced fuel fabrication and recycling capabilities to deliver clean, carbon-free electricity and address nuclear fuel supply challenges. ask →
• FLUOR CORP (FLR) Industrials — Fluor is a global EPC and professional services giant serving energy, infrastructure, and defense sectors, pivoting toward high-growth areas like data centers, semiconductors, and low-carbon power while fighting margin pressure and project execution challenges. ask →
• TXNM ENERGY INC (TXNM) Utilities — TXNM Energy is a regulated electric utility operator in New Mexico and Texas navigating an energy transition from coal to renewables while investing $10.2 billion through 2030 in grid modernization and generation assets. ask →
• PORTLAND GENERAL ELECTRIC (POR) Utilities — A regulated Oregon electric utility serving 960,000 customers through a diversified portfolio of coal, natural gas, and renewable generation assets facing an energy transition. ask →
• URANIUM ENERGY CORP (UEC) Energy — A uranium mining company acquiring and developing uranium assets in the US and Australia to supply the growing nuclear power and fuel markets. ask →
• MIRION TECHNOLOGIES INC CLASS A (MIR) Information Technology — Mirion Technologies provides radiation detection, monitoring, and measurement technologies and services for nuclear, medical, and environmental applications. ask →
• CENTRUS ENERGY CORP CLASS A (LEU) Energy — Domestic uranium enrichment provider supplying low-enriched uranium (LEU) and high-assay low-enriched uranium (HALEU) to U.S. nuclear power plants and the Department of Energy. ask →
• NUSCALE POWER CORP CLASS A (SMR) Industrials — NuScale Power is a nuclear technology developer revolutionizing clean energy with its scalable, factory-built small modular reactor (SMR) design. ask →
• CADRE HOLDINGS INC (CDRE) Industrials — Cadre Holdings manufactures and distributes life-critical safety equipment including body armor, EOD gear, and nuclear solutions for law enforcement, first responders, and military worldwide. ask →
• GRAHAM CORP (GHM) Industrials — Global designer and manufacturer of mission-critical fluid, thermal, vacuum, and advanced mixing systems for defense, space, and industrial energy applications. ask →
• OLEMA PHARMACEUTICALS INC (OLMA) Health Care — Olema Pharmaceuticals is developing next-generation targeted therapies, including a dual-action CERAN/SERD, to transform the treatment of endocrine-driven breast cancers. ask →
• NANO NUCLEAR ENERGY INC (NNE) Industrials — Advanced nuclear technology developer designing and commercializing next-generation small modular reactors and nuclear energy infrastructure for industrial and grid-scale power generation. ask →
• UR ENERGY INC (URG) Energy — A Wyoming-based uranium producer ramping up in-situ recovery operations at Lost Creek and Shirley Basin to supply nuclear fuel amid growing demand from AI data centers and climate-driven energy transitions. ask →
• Terrestrial Energy Inc. (IMSR) Industrials — Terrestrial Energy is developing an innovative Integral Molten Salt Reactor (IMSR) technology aimed at providing zero-emission, baseload power and industrial process heat. ask →
• ASP ISOTOPES INC (ASPI) Materials — An advanced materials company commercializing proprietary isotope enrichment technologies for nuclear medicine, semiconductors, and small modular reactors, combined with LNG and helium production through its Renergen subsidiary. ask →
• PERMA FIX ENVIRONMENTAL SERVICES I (PESI) Industrials — Perma-Fix Environmental Services is a specialized provider of nuclear and mixed waste management, decontamination, and environmental restoration solutions for critical government and industrial projects. ask →
• ENCORE ENERGY CORP (EU) Energy — A speculative uranium exploration and development company pursuing in-situ recovery projects in the U.S. to capitalize on growing nuclear energy demand. ask →
• LIGHTBRIDGE CORP (LTBR) Energy — Lightbridge is a nuclear fuel technology company developing proprietary, high-performance fuel designs aimed at enhancing the economics and safety of nuclear power plants. ask →
• KARYOPHARM THERAPEUTICS INC (KPTI) Health Care — Karyopharm is a clinical-stage oncology company commercializing XPOVIO, a first-in-class XPO1 inhibitor for multiple myeloma, with ongoing trials in myelofibrosis and endometrial cancer. ask →
• Eagle Nuclear Energy Corp. (NUCL) Materials — Early-stage nuclear and uranium company developing SMR technology and exploring uranium deposits while navigating regulatory, technical, and market acceptance challenges. ask →

Not quite it? Describe exactly what you want →

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

Last updated 2026-07-23.

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