Amentum stock gains on DOE AI data center project selection By Investing.com
Amentum Holdings (NYSE:AMTM) shares rose 1.4% after the U.S. Department of Energy’s National Nuclear Security Administration selected the company to negotiate a phased lease for a 1-gigawatt AI data center at the Savannah River Site. The project includes about 2 gigawatts of on-site energy, starting with natural gas and planning a shift to advanced nuclear, per the DOE.
How this was made
The 30-second read
Why it matters
If negotiations progress to a finalized phased lease, AMTM could see improved visibility into government-linked infrastructure work tied to AI compute and energy generation. However, the article provides no contract value, timeline, or probability of award.
Market read
A fresh, specific DOE selection for a large AI-and-energy infrastructure project is a near-term sentiment catalyst for AMTM, with follow-through risk until terms are finalized.
What to watch
Traders may be over-weighting project scale versus the company’s share of economics, procurement structure, and whether Amentum is the prime developer versus a subcontractor.
Background
The DOE NNSA selection is framed as a public-private partnership to develop an AI data center at the Savannah River Site, leveraging Amentum’s prior site experience.
Ticker impact
Amentum Holdings was selected by DOE NNSA to enter negotiations for a phased lease to develop a 1-gigawatt AI data center at Savannah River Site.
Likely supportive for AMTM shares, with follow-through dependent on final lease terms, permitting, and the nuclear transition timeline.
The article discloses a specific government selection event and project scale (1 GW AI data center, ~2 GW energy), but it stops short of a finalized contract or financial terms, limiting certainty on revenue timing.
Market effects
Reinforces demand signals for government-adjacent engineering and nuclear-capable infrastructure providers supporting AI compute and power reliability.
Highlights South Carolina’s Savannah River Site as a potential AI power-and-infrastructure hub, which may attract additional regional supply-chain attention.
Supports the broader US AI infrastructure buildout narrative, particularly where power generation and grid reliability are gating factors.
Counterpoint
Negotiations do not guarantee a signed lease or funding; the nuclear transition plan could face schedule and regulatory risk that delays material revenue.
Key entities
- companyAmentum Holdings
Selected by DOE NNSA to enter negotiations for a phased lease to develop an AI data center at Savannah River Site.
- government_agencyU.S. Department of Energy, National Nuclear Security Administration
Selects Amentum to enter negotiations for the project at the Savannah River Site.
- facilitySavannah River Site
South Carolina site where the AI data center and energy generation integration is planned.



