3 Small Nuclear Stocks Wall Street Has Not Fully Priced for the AI Power Shortage Yet.
Talen Energy (TLN) reported Q2 2026 revenue of $747M, up 64.5% YoY, with adjusted EBITDA at $374M. NuScale Power (SMR) saw revenue drop 99.1% YoY to $75K, with ongoing losses. Oklo (OKLO) achieved first criticality for its Groves reactor. All three companies are positioned for AI-driven data center power demand growth, but only Talen generates cash flow currently.
How this was made
The 30-second read
Why it matters
The new guidance and capacity win for Talen provide a concrete catalyst, while NuScale and Oklo remain speculative but with notable regulatory and technical progress.
Market read
Provides fresh guidance and capacity auction results for a mid‑cap power producer and updates on two pre‑revenue nuclear startups, relevant for energy, AI‑infrastructure, and speculative tech investors.
What to watch
Potential regulatory delays for SMR licensing and the risk of over‑capacity in the PJM market.
Background
The article examines three small nuclear‑related companies amid rising AI data‑center power demand, focusing on earnings, guidance, and technical milestones.
Ticker impact
Talen Energy reported Q2 2026 results, raised full-year adjusted EBITDA guidance to $2.025-$2.225B and free cash flow to $1.20-$1.35B, and disclosed winning over 10 GW in the 2028/2029 PJM auction.
Potential upside of 5-10% if market digests guidance and auction win.
Guidance increase and capacity win are material new information for a mid‑cap power producer.
NuScale Power disclosed Q2 2026 revenue of $75k, a net loss of $47.54M, and highlighted its NRC design‑certified SMR status and ongoing TVA discussions.
Limited short‑term move; price may stay volatile pending further contract news.
Financials are weak and no concrete contract yet, but regulatory milestone is noteworthy.
Oklo announced its Groves isotope reactor achieved first criticality and confirmed a 2028 startup target with DOE approval, plus an MOU with Kiewit for a 1.2 GW Ohio project.
Modest upside potential if market rewards the criticality achievement.
First criticality is a material development for a pre‑revenue nuclear startup.
Market effects
Highlights growing interest in small modular reactors as a carbon‑free baseload for hyperscalers.
U.S. power generation and nuclear tech sectors may see increased investor attention.
Supports broader AI‑energy supply narrative affecting global energy and tech equities.
Counterpoint
High leverage at Talen and speculative nature of SMR/Oklo could lead to downside if demand or financing stalls.
Key entities
- companyTalen Energy
Merchant independent power producer with cash flow and PJM auction win.
- companyNuScale Power
SMR developer with NRC design certification, seeking TVA contract.
- companyOklo
Advanced fission developer achieving first criticality.
