Over the past week Oklo stock has recorded a five-day winning streak, delivering a cumulative gain of 36 percent. This surge added roughly $3.9 billion to the company’s market capitalization, which now stands at approximately $15 billion. Trading volume averaged 408,000 shares per day during this period, exceeding its 30-day average by nearly 20 percent. Investors cited renewed optimism around Oklo’s progress in advanced fission technology and growing interest in domestic nuclear infrastructure as the primary catalysts for the rally.

Oklo announced that it has entered into an Other Transaction Agreement with the U.S. Department of Energy to design, build and operate a radioisotope pilot plant under the DOE’s Reactor Pilot Program. The pilot facility—to be executed by Oklo’s subsidiary Atomic Alchemy—will produce medical and research radioisotopes currently sourced primarily from aging foreign reactors. Although financial terms were not disclosed, the agreement marks a shift from planning to active execution and is expected to generate critical data for regulatory submissions and future commercial deployments in the United States.

Oklo’s flagship fast fission reactor leverages established high-assay low enriched uranium fuel cycles and passive safety systems drawn from earlier naval and research reactor programs. The modular design intends to deliver up to 20 MWe per unit while enabling onsite recycling of spent fuel to extract additional fissile material. Company executives highlight that the approach can reduce waste volumes by over 90 percent compared with traditional light-water reactors and accelerate licensing timelines by building on regulatory precedents for proven subsystems.