Top Nuclear Power Stocks
After decades of stagnation, nuclear power is experiencing a dramatic revival. AI hyperscalers are signing long-term deals for nuclear electricity, governments are extending plant lifetimes, and a new wave of advanced reactor companies is attracting billions in investment.
The largest US nuclear operator (21 reactors), Constellation is the direct beneficiary of AI-driven clean power demand. Its 20-year deal with Microsoft and pipeline of hyperscaler agreements underpin long-term earnings visibility.
The highest analyst upside in the group (+28% to target) and the most attractive valuation in the group (21x forward P/E), though weak 1-year momentum (-13%).
Vistra's acquisition of Energy Harbor added four nuclear plants, creating a diversified power platform with growing nuclear exposure alongside gas and retail electricity.
Fundamentals are mixed across AI score, momentum, valuation, and upside for VST.
BWX manufactures nuclear fuel and components for the US Navy and commercial reactors. It is also the prime contractor for NASA's nuclear space propulsion program (DRACO).
Strong price momentum (+50% over 1Y), though a below-average AI score (50).
Cameco is the largest publicly traded uranium miner, with mines in Canada and Kazakhstan. As nuclear demand rises, uranium prices benefit directly, and Cameco has locked in long-term supply contracts.
A top-tier AI score (63).
UEC is a US-based uranium producer with near-term production assets in Wyoming, Texas, and Paraguay. It benefits directly from rising uranium spot prices driven by nuclear demand growth.
Fundamentals are mixed across AI score, momentum, valuation, and upside for UEC.
NuScale developed the world's first NRC-approved small modular reactor design. Its 77 MWe VOYGR SMR modules are targeting utility, industrial, and data center customers.
Early-stage profile with a below-average AI score (24), so theme optionality matters more than near-term metrics.
Oklo is developing next-generation advanced fission reactors (Aurora Powerhouse), backed by Sam Altman. Its micro-reactor design targets data centers, remote sites, and the US military.
Early-stage profile with a below-average AI score (37), so theme optionality matters more than near-term metrics.
Nano Nuclear is developing portable, battery-sized microreactors. Its ZEUS and ODIN reactor designs target off-grid applications, defense, and remote industrial power.
Early-stage profile with a below-average AI score (34), so theme optionality matters more than near-term metrics.
- AI hyperscalers sign a wave of 20-year nuclear power purchase agreements driving plant restarts
- Uranium spot price reaches new highs as reactor build pipeline expands globally
- SMR regulatory approvals accelerate, with first commercial deployments by 2028–2030
- Policy support (IRA, CHIPS, nuclear production tax credits) accelerates plant lifetime extensions
- Permitting delays push SMR commercial timelines further into the 2030s
- Uranium oversupply from Kazakh production undermines price recovery
- One major nuclear incident globally could reset regulatory frameworks and investor sentiment
- Competing clean energy sources (solar + battery storage) prove cheaper than nuclear for data centers
- SMR companies (OKLO, NNE, SMR) are pre-revenue and carry significant execution risk
- A nuclear safety incident anywhere globally would pressure the entire sector
- Uranium price volatility can sharply affect miner economics and sentiment
- Permitting and regulatory approval timelines remain uncertain for advanced reactors
- Data center power deals with utilities may be disrupted by power grid constraints
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Frequently Asked Questions
Why are nuclear power stocks rising in 2026?+
A combination of factors is driving the nuclear renaissance: AI hyperscalers need large-scale, dispatchable clean electricity; governments are extending reactor lifetimes and approving new builds; and a new generation of small modular reactor (SMR) companies is attracting major investment.
What is a small modular reactor (SMR)?+
An SMR is a nuclear reactor with an output typically below 300 MWe, designed to be built in factories and deployed in modular units. Companies like NuScale, Oklo, and Nano Nuclear are developing SMR designs that could serve data centers, industrial sites, and remote communities.
How do uranium stocks fit into the nuclear investment theme?+
Uranium is the fuel for nuclear reactors. As more nuclear capacity comes online and reactor lifetimes are extended, demand for uranium grows. Miners like Cameco and UEC benefit directly from higher uranium spot prices and long-term supply contracts.
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