Oklo (NYSE: OKLO), the microreactor developer backed by significant private capital, completed construction of its Groves One pilot isotope-production reactor in just 229 days this past June.
CEO Jacob DeWitte claimed the achievement positions Oklo to build future reactors at a “world record speed” in the U.S., targeting surging energy demands from the AI boom and American manufacturing growth.
While a handful of small reactors were deployed faster during the early Atomic Age and Cold War, Groves One marks the fastest U.S. non-military reactor build completed under modern environmental and Department of Energy regulations.
Construction was executed through private capital, commercial suppliers, and Oklo-led management on private land, making it the first DOE Reactor Pilot Program reactor to achieve criticality outside government-owned property.
Oklo’s management describes the project as a “repeatable blueprint” covering construction, procurement, authorization, startup, and operating experience for future deployments.
Following a safety and operational readiness review, Oklo received a Startup Authorization from the DOE last month, permitting the company to load nuclear fuel and begin formal testing procedures.
On August 5, the Groves Isotope Test Reactor achieved criticality for the first time, marking a controlled, self-sustaining nuclear chain reaction that represents a pivotal technical milestone for the company.
The progress was not without setbacks, however, as Oklo missed the DOE’s initial July 4 criticality target, while four competing microreactor developers, Antares, Valar Atomics, Deployable Energy, and Aalo Atomics, met that deadline.
Groves One is expected to anchor Oklo’s emerging isotope business, with first revenue projected in early 2027 from an Idaho radiochemistry lab, while commercial Aurora powerhouse projects remain further out on the timeline.
The company’s Idaho National Laboratory site is targeted for a 2028 deployment, and its Ohio campus, which will supply power to Meta, is not expected to come online until early 2030.
Analysts project Oklo’s revenue will surge from essentially nothing in 2025 to $55 million in 2028, assuming its first commercial reactors are deployed successfully and on schedule.
Despite those projections, Oklo’s market capitalization sits at $8.3 billion, placing its valuation at approximately 149 times its anticipated 2028 sales, a premium that raises clear questions about risk tolerance for investors.
The company is also expected to remain unprofitable through that period, and its share count has risen by more than 50% since its public debut in May 2024, adding further dilution pressure on existing shareholders.
For investors, Oklo’s technical achievements are genuinely significant, but the stock’s rich valuation, ongoing losses, and dilution history make it a particularly demanding position to justify in an already volatile market.
