Why Did Nuclear Stocks OKLO, SMR, NNE, LEU, XE Jump On Thursday?
U.S. nuclear stocks surged after the House passed the Ratepayers Protection Act, which shifts power upgrade costs to data centers. Oklo (OKLO) rose 11%, NuScale (SMR) gained 9%, Nano Nuclear (NNE) up 8.5%, Centrus (LEU) rose 8%, and X-Energy (XE) closed 12% higher. The bill may boost demand for nuclear power solutions for AI data centers.
How this was made

The 30-second read
Why it matters
The act is expected to drive demand for SMR and advanced nuclear technologies, directly benefiting companies with existing or prospective data‑center power contracts.
Market read
The policy creates a catalyst for nuclear SMR stocks, leading to double‑digit price moves across the sector.
What to watch
Funding constraints for data‑center operators and competition from renewable energy could temper the expected demand surge.
Background
The House passed the Ratepayers Protection Act, shifting electricity cost burdens from consumers to large data‑center operators, creating a potential new market for dedicated nuclear power solutions.
Ticker impact
OKLO jumped >11% after the House passed the Ratepayers Protection Act, which could increase demand for its SMR power for data centers.
Further upside if data-center contracts materialize.
The bill shifts power costs to data centers, favoring nuclear SMR providers like OKLO.
SMR rose ~9% on the same bill, reflecting market expectations of higher SMR demand for AI data centers.
Potential continued rally if the company secures long‑term power contracts.
Legislation creates a new revenue tail for SMR's modular reactors.
NNE surged 8.5% after the Ratepayers Protection Act, as investors see it as a beneficiary of data‑center power needs.
May see further gains if the company can capture data‑center contracts.
Policy shift highlights nuclear as an alternative power source.
LEU climbed nearly 8% on the news that the new bill could boost demand for nuclear fuel for dedicated power projects.
Likely to stay elevated pending contract announcements.
Increased data‑center power costs may drive demand for nuclear fuel supplied by LEU.
XE closed 12% higher after the House passed the act, reflecting market optimism for its advanced nuclear technology.
Further upside possible if the company secures data‑center power deals.
The bill creates a favorable environment for X‑Energy's SMR solutions.
Market effects
The legislation could accelerate investment in small modular reactors and related nuclear fuel providers, boosting the entire nuclear‑energy sector.
U.S. data‑center heavy regions may see increased demand for local nuclear power projects.
If adopted elsewhere, similar policies could spur global SMR market growth.
Counterpoint
The policy may face implementation delays and regulatory hurdles, limiting near‑term revenue for these microcaps.
Key entities
- legislationRatepayers Protection Act
Bill requiring data centers to fund power generation and grid upgrades.
- companyMeta Platforms
Partner of OKLO for a future Ohio data‑center power project.



