Key Highlights

  • NuScale Power surged to $8.20, joining a broad rally in nuclear-energy stocks with no company-specific news.
  • Constellation Energy's 20-year power deal with Google was the trigger for the sector-wide move.
  • NuScale designs small modular reactors, factory-built units meant to be cheaper and quicker to deploy than conventional plants.
  • Oklo, NANO Nuclear Energy, X-Energy and Centrus Energy all climbed alongside NuScale the same day.

NuScale Power (NYSE:SMR) surged on Tuesday, October 6, joining a broad rally in nuclear-energy stocks across the Russell 1000. One source put NuScale at $8.20 during the session. The move was not driven by any NuScale announcement. Instead, it came from what traders call a read-through: a deal at one company that changes how investors value its peers.

That deal belonged to Constellation Energy (NASDAQ:CEG), the largest operator of US nuclear plants, which signed a 20-year power purchase agreement with Alphabet's Google (NASDAQ:GOOGL) for 3,590 megawatts in total. The package includes 890 megawatts of new capacity from uprates at 11 reactors in Illinois, Pennsylvania and New Jersey, plus about 2,700 megawatts from existing plants. Constellation will invest more than $4.3 billion, and the first uprates are due by 2028.

Why Investors Connected the Dots

The agreement was Constellation's second big-tech contract in a week, following a 690-megawatt deal with Amazon (NASDAQ:AMZN) on September 30. For investors, two hyperscale buyers committing to decades of nuclear Supply in quick succession reinforced the idea that AI data centers will need vast amounts of reliable, carbon-free electricity, and that existing reactors alone may not be enough.

Constellation chief executive Joe Dominguez said the collaboration could serve as a model for how technology companies and the energy industry work together to responsibly develop the digital economy.

NuScale designs small modular reactors, factory-built units meant to be cheaper and quicker to deploy than conventional large plants. Like other developers of new reactor technology, NuScale's value depends heavily on future orders, which is why its shares tend to react strongly to signs of rising Demand for nuclear power.

Moving in a Pack

NuScale had plenty of company. Oklo (NYSE:OKLO) rose to $38.81 and NANO Nuclear Energy (NASDAQ:NNE) climbed to $16.79, while uranium-focused funds also advanced. X-Energy (NASDAQ:XE) gained, and Centrus Energy (NYSE:LEU), which supplies enriched uranium, popped. Constellation itself rocketed to close at $300.40, and power producers Vistra (NYSE:VST), Talen Energy (NASDAQ:TLN) and NRG Energy (NYSE:NRG) jumped as well.

The power trade made utilities the day's best-performing sector, while health care was the only sector to fall.

Records for the Big Benchmarks

The broader market also had a strong session. The S&P 500 gained 44.98 points to a record 7,818.93, and the Nasdaq Composite ended just under 27,600, another record. The Dow Jones Industrial Average rose 253.38 points to 51,521.28. The Russell 1000, home to most US large and mid-sized companies including NuScale, moved up with the large-cap indexes, while the small-cap Russell 2000 slipped to about 2,830. Treasury yields eased, with the 10-year ending near 5.28.

Customer Orders Will Determine the Follow-Through

The test for NuScale is whether excitement over deals for existing reactors turns into firm orders for new small modular units. Investors will be watching for customer announcements, project financing and regulatory progress, as well as for any additional power agreements from large technology companies. Read-through rallies can fade as quickly as they arrive.