Nuclear Energy Boom: Why Top Nuclear Energy Companies Are Trading at Historic Momentum

Nuclear power is experiencing a remarkable resurgence, fueled by three converging forces: the Trump administration’s aggressive push to expand nuclear capacity, soaring electricity demand from AI data centers, and the global pivot away from fossil fuels. The U.S. already leads in nuclear generation worldwide, yet Trump’s vision to quadruple the nation’s nuclear output by 2050 is reshaping the entire industry landscape.

The Explosive Growth Story Behind Nuclear Stocks

The demand for clean, reliable baseload power from hyperscalers like Microsoft and Meta is unprecedented. These tech giants are signing long-term contracts to secure nuclear power for their data center operations, creating a multi-decade revenue stream for nuclear operators. This structural shift represents more than just a cyclical rally—it’s a fundamental repricing of nuclear energy as essential infrastructure.

A Closer Look at the Market Leaders

The Dominant Player: Constellation Energy

Since spinning off from Exelon in 2022, Constellation Energy (NASDAQ: CEG) has positioned itself as the leading clean energy producer in the U.S., operating the nation’s largest nuclear fleet. The company’s recent moves demonstrate how aggressively top nuclear energy companies are capitalizing on this wave.

Consider the blockbuster Calpine acquisition—a $16.4 billion deal (including $12.7 billion in debt assumption) that will nearly double Constellation’s generating capacity to almost 60 gigawatts. This immediately expands exposure to high-growth AI data center hubs, particularly in Texas.

More critically, Constellation inked a landmark 20-year power supply agreement with Microsoft to repower the Three Mile Island facility (now the Crane Clean Energy Center). By June, Meta followed with another 20-year nuclear PPA. These aren’t isolated wins—they signal institutional-level confidence in nuclear’s future. Throw in a 10% dividend increase and aggressive share buybacks, and Constellation emerges as the heavyweight bet on nuclear energy.

The Smart Way to Diversify: Nuclear Energy ETF Exposure

Not ready to go all-in on a single name? The VanEck Uranium and Nuclear ETF (NYSEMKT: NLR) provides instant diversification across the entire nuclear ecosystem.

As of mid-October 2025, the fund held 28 positions spanning uranium miners to reactor developers and nuclear suppliers. The composition reveals the sector’s depth:

• Oklo (8.63%): specializing in small modular reactors
• Constellation Energy (7.4%): the legacy nuclear operator play
• Cameco (6.92%): uranium fuel supplier
• Centrus Energy (6.57%): enrichment and fuel services
• BWX Technologies (6%): nuclear components for U.S. defense

The ETF’s global mandate mirrors the MVIS Global Uranium & Nuclear Energy Index, giving you exposure to top nuclear energy companies across Australia, Canada, Kazakhstan, the U.K., and China—not just domestic plays. At a 0.56% expense ratio and 0.86% SEC yield, it’s an efficient entry point.

Building Your Nuclear Energy Position

For growth-oriented investors, Constellation Energy’s individual equity story is compelling. But a balanced approach—combining individual stock exposure with ETF diversification—captures both the concentrated upside of market leaders and the sector-wide optionality of nuclear expansion.

The nuclear renaissance isn’t hype; it’s a policy-driven, demand-driven structural shift. Top nuclear energy companies are signing contracts that lock in decades of cash flow, and valuations still reflect early-cycle pricing.