US and Saudi Arabia announce nuclear cooperation deal enabling small modular reactors for Saudi AI datacenter power.

Nuclear energy stocks rallied this week on two significant developments that rekindled investor confidence in the sector's near-term prospects.

The primary catalyst was a landmark agreement between the United States and Saudi Arabia on commercial nuclear power—a major milestone for the kingdom's entry into the sector. The deal positions U.S. companies in central roles developing Saudi Arabia's nuclear infrastructure, opening a substantial market for American operators and reactor builders.

Constellation Energy (NASDAQ: CEG) led the sector higher, climbing 4.84%. Oklo (NYSE: OKLO) gained 0.84%, while NuScale Power (NYSE: NNE) edged up 0.12%, both seen as potential beneficiaries of expanded international and domestic activity. SMR (NYSE: SMR) declined 0.34%, and GE Vernova (NYSE: GEV) fell 8.69%, indicating selective investor positioning across the nuclear and energy technology space.

A second development also supported momentum: reports of a U.S. government initiative to accelerate reactor deployment specifically for artificial intelligence data centers. The effort reflects recognition that AI infrastructure demands enormous, reliable baseload power that intermittent renewables alone cannot consistently provide. Nuclear energy's ability to generate large volumes of consistent, carbon-free electricity has increasingly attracted major technology companies and policymakers seeking stable long-term power solutions.

The Saudi agreement represents a milestone; the kingdom has long signaled ambitions to diversify its energy mix and develop civilian nuclear capabilities with international partners. U.S. companies securing key roles could yield substantial long-term contracts, construction agreements, and operational partnerships across Saudi Arabia's nuclear supply chain.

Domestically, the federal push to accelerate reactor approvals could shorten timelines that have historically made nuclear projects difficult to finance and execute. Together, these developments—a high-profile international agreement and domestic technology-sector demand—signal a broader shift in how governments and private markets view nuclear power as a strategic asset, creating a more durable tailwind for the sector than either factor alone.