Top 3 Nuclear Stocks To Watch In October 2026

Energy bills are biting and governments are being pushed to rethink how they keep the lights on, as seen in the recent plea from Energy UK for urgent help with rising power costs. Reliable low carbon electricity increasingly appears less like a niche theme and more like a necessity. This article walks through three nuclear energy stocks from our screener that could help you consider how to position your portfolio for that shift.

The three nuclear energy stocks below are just a sample from this theme, and the full screen surfaced 34 more listed businesses with similarly detailed narratives that are not covered here.

If you want to go straight to the data and identify which operators, fuel suppliers, and reactor builders best fit your thesis, head to the Nuclear Energy Stocks screener to analyze the full set of nuclear opportunities and focus on the highest conviction ideas.

Constellation Energy (CEG)

Constellation Energy runs a large US power fleet where nuclear plants supply a significant share of its low carbon output, and the stock gives you exposure to commercial nuclear generation as part of a broader mix that also includes gas, wind, solar and hydro assets.

Constellation Energy generates about US$31.3b from its Generation segment and has a market value of roughly US$91.7b, anchoring it as a large scale player in US electricity, natural gas and related energy services across multiple regions.

For investors focused on nuclear power, Constellation Energy links the theme directly to long term contracts, grid reliability and large scale clean capacity.

"Growing demand for carbon free, reliable power from large scale customers such as data centers and large corporates is now translating into roughly 920 MW of long duration nuclear power contracts with investment grade buyers on an average 18.5 year term. This can support more visible revenue and earnings growth for Constellation Energy as additional load is signed over time."

The real swing factor is how one policy sensitive source of cash flow shapes future pricing power, profitability and reinvestment in the nuclear fleet.

That policy sensitive cash flow is the crux. Read the full narrative for Constellation Energy to see how contracting trends, risk factors and capital plans could be quietly reshaping the story.

Oklo (OKLO)

Oklo focuses on Aurora small modular fission plants that aim to supply grid scale, low carbon power, and the Aurora Powerhouse concept is its clearest link to the Nuclear Energy Stocks theme as it targets long term electricity contracts rather than one off reactor sales.

Oklo Inc. develops Aurora Powerhouse fission plants sized at 15 to 75 MW and nuclear fuel recycling technology, tying its future to modular nuclear generation and fuel-cycle services, and the stock currently carries a market value of about US$6.7b.

"Just had a major regulatory hurdle overcome, NRC (Nuclear Regulatory Commission) just approved Oklo’s Principal Design Criteria for Aurora. Reactors still aren’t fully licensed / approved, but this has a significant positive impact on uncertainty."

For Oklo investors, what happens when one large, capital hungry requirement meets that long runway of potential demand could matter far more than any headline today.

That tension between capital needs and potential demand sits at the heart of the full narrative for Oklo, which maps how Oklo’s story could accelerate from here.

GE Vernova (GEV)

GE Vernova ties into the Nuclear Energy Stocks theme through its Power segment, which supplies nuclear steam turbine and reactor-generator equipment. It also reports US$20.98b from Power, US$12.24b from Electrification, and US$8.47b from Wind, with the group valued at roughly US$263.3b.

For nuclear focused investors, GE Vernova offers exposure to the heavy equipment and services that keep reactors producing electricity, while also connecting to the grids and backup generation those plants rely on.

"Every hyperscale AI data center needs massive amounts of reliable electricity, and GE Vernova supplies the gas turbines, transformers, switchgear, and grid systems that generate and deliver that power."

The key variable is how a long cycle pressure on its energy infrastructure backlog ultimately affects earnings quality and cash generation.

That pressure on the backlog is exactly why reading the full narrative for GE Vernova can help you see whether GE Vernova’s earnings power is quietly accelerating or stalling.

Seeking Fresh Alternatives Beyond Nuclear?

Fresh ideas can move fast. Breakout themes gather momentum, and by the time the crowd notices what is flying, the ideal entry window is already dropping. Consider acting before attention broadens.

• Spot income workhorses early by scanning 7 dividend fortresses to find candidates that aim to keep cash coming in while the market is still underpricing their consistency.
• Explore potential growth stories at an earlier stage by reviewing 19 high quality undiscovered gems that are quietly building fundamentals while they remain under the radar.
• Look ahead to possible infrastructure shifts by checking 40 power grid technology and infrastructure stocks that may be positioned to participate as grids modernize and capital flows into critical hardware.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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