The growth trajectory of artificial intelligence infrastructure is creating an unprecedented challenge: where will all that electricity come from? Data centers running large language models and training new AI systems consume staggering amounts of power, and renewable sources alone won’t fill the gap. Nuclear energy is increasingly recognized as a critical piece of the solution, capable of delivering massive baseload capacity around the clock without weather dependency.
For investors looking to capitalize on this structural shift, three nuclear-focused companies offer distinctly different risk-reward profiles heading into 2030 and beyond. Each plays a different role in the nuclear ecosystem, and understanding those roles matters when deciding which fits your investment approach.
Constellation Energy (CEG): Locking in Decades of Committed Demand
Constellation operates the largest fleet of operating nuclear reactors in the United States, generating over 44,000 gigawatt-hours of electricity during a single recent quarter—output sufficient to power roughly 16 million homes for three months. That scale alone makes the company worth studying, but the real opportunity lies in what management is doing with it.
Rather than simply selling power into commodity markets, Constellation has begun signing long-term purchase agreements with major technology companies seeking reliable, carbon-free electricity for their data center operations. Microsoft and Meta Platforms have each committed to 20-year deals, agreements that extend well beyond the 2030 horizon and likely foreshadow similar arrangements with other hyperscalers. These multi-decade contracts essentially lock in revenue streams that should remain stable through periods when other energy markets fluctuate.
Trading around $264 per share with a market cap near $94 billion, the stock carries a valuation of roughly 24 times the midpoint of management’s adjusted 2026 earnings guidance. That’s a meaningful premium, but it reflects the quality of both the asset base and the revenue visibility those long-term contracts provide. For investors seeking exposure to nuclear’s growth without binary technology risk, Constellation offers the most straightforward path.
Uranium Energy (UEC): Betting on Domestic Supply Growth
Building more reactors means needing more fuel, and uranium is where that supply chain begins. Uranium Energy operates mining and processing facilities across North and South America, with expansion projects currently underway in Wyoming and Texas aimed at boosting domestic production capacity.
The opportunity here connects to a structural imbalance. Despite the United States operating roughly a quarter of the world’s nuclear reactors, only about 7% of the uranium delivered to American power plants in 2025 came from domestic sources. The remainder was imported, creating both a national security consideration and an opening for domestic producers to capture market share if utilities decide to source more uranium domestically.
Uranium Energy’s current stockpile sits around 1.73 million pounds, a figure representing less than 4% of the 47 million pounds delivered to U.S. reactors last year. That modest position relative to the overall market means the company would need to execute successfully on its expansion plans to become a meaningful supplier. Trading around $10 per share with a market cap of roughly $5.1 billion, Uranium Energy offers the most speculative angle on nuclear’s growth, with returns heavily dependent on whether utilities actually shift toward domestic sourcing.
Oklo (OKLO): The High-Risk, High-Reward Moonshot
Oklo represents the opposite end of the spectrum from Constellation in terms of maturity and certainty. The company hasn’t yet generated meaningful revenue and remains pre-commercial, betting its future on a novel approach: small modular reactors (“Aurora powerhouses” roughly the size of a house) deployed near data centers, factories, and communities.
The business model centers on owning and operating these reactors while selling power as a service, much like a traditional utility but with the operational simplicity of a newer, purpose-built system. That approach could theoretically lower barriers to adoption since customers wouldn’t need to manage reactor operations themselves. The catch is that Oklo has yet to secure regulatory approval from the Nuclear Regulatory Commission, creating binary risk around whether the company can actually deploy its technology commercially.
That regulatory hurdle hasn’t prevented preliminary deal-making, though. Oklo reported a backlog equivalent to 14 gigawatts as of late 2025 and announced in January 2026 that it would support Meta’s data center operations through a nuclear campus in southern Ohio, targeted to come online sometime in the 2030s. Trading around $36 per share with a market cap near $6.7 billion, Oklo offers immense upside potential if regulatory approval materializes and the company can execute on its vision, but the path to profitability involves several years of approvals and construction before any meaningful revenue generation.
