What Changed
Price Move History
- Daily moves over 5%
- 110 252 sessions, September 25, 2025 to September 25, 2026
- Largest daily move
- +16.4% close of May 6, 2026
- 1-year change
- -68.1% closing prices, September 25, 2025 to September 25, 2026
- 5-year change
- +289.4% closing prices, September 24, 2021 to September 25, 2026
Company Description
Oklo Inc. Overview
Oklo Inc. is an advanced nuclear technology company based in Santa Clara, California. The company trades on the New York Stock Exchange under the symbol OKLO. Oklo is developing fast fission power plants intended to deliver clean, reliable and affordable energy at global scale, while also working on nuclear fuel recycling and a domestic supply chain for critical isotopes.
Oklo’s business is built around advanced fission technology rather than conventional large nuclear plant construction. Its stated plan includes two complementary tracks: providing reliable, commercial-scale energy to customers and selling used nuclear fuel recycling services in the U.S. market. The company’s technology work centers on the Aurora powerhouse product line, which is described as a liquid metal fast reactor design. The first commercial Aurora powerhouse is designed to produce up to 15 megawatts of electricity and to operate on both recycled nuclear fuel and fresh fuel.
Core Business Focus
Oklo’s main operating focus is the development and commercialization of fast fission power plants. Fast fission systems use a different reactor approach from many conventional nuclear plants, and Oklo’s disclosed product line is tied to liquid metal reactor technology. The company presents this model as a way to supply commercial-scale power while linking reactor deployment with fuel recycling work.
Fuel is a key part of Oklo’s model. The company has stated that it is advancing nuclear fuel recycling to convert used nuclear fuel into clean energy. Its public materials also describe a plan to sell used nuclear fuel recycling services to the U.S. market. This makes fuel recycling more than a support activity for the company; it is one of the core tracks in Oklo’s stated business plan.
Oklo is also establishing a domestic supply chain for critical isotopes. The company has identified potential isotope uses in cancer care, cancer diagnosis and treatment, advanced manufacturing, scientific research, space exploration and national security applications. This isotope work is connected to Oklo’s Groves Isotope Test Reactor and its broader plan to build operating experience that can support future isotope production facilities.
Aurora Powerhouse Technology
The Aurora powerhouse is the product line Oklo plans to commercialize for its liquid metal fast reactor technology. Company descriptions state that the first commercial Aurora powerhouse is designed to produce up to 15 megawatts of electricity and to use either recycled nuclear fuel or fresh fuel. That scale is materially different from the large central-station nuclear plants that dominate the older nuclear power fleet.
Oklo’s Aurora work is also tied to sodium and other alkali-metal systems. The company acquired Creative Engineers, Inc., a chemical process engineering company with expertise in sodium and alkali-metal systems. Oklo described Creative Engineers’ capabilities as including liquid-metal systems, component development, fabrication, manufacturing and applied research and development. These capabilities are directly relevant to sodium handling, thermal systems and the sodium-cooled Aurora powerhouse technology described by the company.
Groves Isotope Test Reactor
Oklo’s Groves Isotope Test Reactor is a low-power test reactor in Texas. The company has described Groves as a reactor designed to demonstrate reactor design, build and operations, and to establish operating experience needed to support future isotope production facilities. Groves achieved first criticality after a controlled, self-sustaining nuclear chain reaction at low power.
Groves was developed under the U.S. Department of Energy Reactor Pilot Program. Oklo reported that the U.S. Department of Energy authorized fuel loading, startup testing and reactor operations for Groves. The company also stated that Groves supports the development of Oklo’s isotope business and helps establish a stronger domestic supply chain for critical isotopes.
Regulatory and Government-Related Milestones
Advanced nuclear companies depend on regulatory approvals, fuel access and operating experience. Oklo has disclosed several milestones tied to U.S. government agencies and national laboratories. The company was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant. It was also awarded fuel from Idaho National Laboratory and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission.
Oklo is developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories. These relationships matter because the company’s business plan involves nuclear reactor development, used fuel recycling and isotope production, all areas that require technical review, fuel supply planning and regulatory oversight.
Business Model and Investor Focus
Oklo’s disclosed business model is development-stage and project-driven. The company is not described simply as a power producer. It is pursuing reactor commercialization, fuel recycling services and isotope supply. This creates several areas that investors often track: licensing progress, reactor construction and testing, fuel availability, isotope production milestones, capital structure and partnerships with nuclear fuel or engineering organizations.
Because Oklo trades as an operating company on the NYSE, its public filings and company updates can be important for understanding project status, governance, financing arrangements and risk factors. Recent regulatory filings identify Oklo as an emerging growth company and include quarterly reports, amended quarterly filings, material event reports and proxy materials. Those documents help show how the company describes its operations, capital plans and stockholder matters.
Why Oklo Is Distinct
Oklo combines three company-disclosed areas that are often separate in the nuclear sector: fast fission power plants, nuclear fuel recycling and critical isotope supply. Its Aurora powerhouse line represents the power generation track. Its used fuel recycling work supports the fuel side of the model. Its Groves project and isotope plans add a separate application area tied to medical, industrial, research, space and national security uses.
The company’s public record also shows a focus on building internal technical capability. The acquisition of Creative Engineers brought sodium and alkali-metal engineering, fabrication, manufacturing and applied research capabilities into Oklo. For a company developing a sodium-cooled reactor design, those disclosed capabilities are directly connected to the engineering and testing work required by the Aurora powerhouse program.
Stock Performance
Oklo (OKLO) closed at $38.04 on September 25, 2026. Over the past 12 months, the price has lost 68.1%.
OKLO Metrics & Rankings
Price returns through September 25, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Oklo has 10 recent news articles. Of the recent coverage, 5 articles coincided with positive price movement and 5 with negative movement. Key topics include earnings, earnings date, acquisition, partnership. View all OKLO news →
SEC Filings
Oklo has filed 10 recent SEC filings, including 7 Form 4, 1 Form 144, 1 Form 424B5, 1 Form 8-K. The most recent filing was submitted on September 16, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all OKLO SEC filings →
Insider Radar
Insider selling at Oklo over the past 90 days can reflect routine portfolio management, scheduled trading plans (Rule 10b5-1), tax planning, or compensation-related dispositions rather than a directional view on the stock.
Financial Highlights
operating income reached -$139.3M, and net income was -$105.7M. Diluted earnings per share stood at -$0.72. The company generated -$82.2M in operating cash flow. The current ratio was 49.08, measuring current assets divided by current liabilities.
Upcoming Events
Commercial operations start
Begin metal fuel production
Oklo has 2 upcoming scheduled events. The next event, "Commercial operations start", is scheduled for September 1, 2027 (in 337 days). Investors can track these dates to stay informed about potential catalysts that may affect the OKLO stock price.
Short Interest History
Short interest in Oklo (OKLO) currently stands at 32.2 million shares, up 23.9% from the previous reporting period, representing 20.5% of the float. Since September 2025, short interest has increased by 104.4%.
Days to Cover History
Days to cover for Oklo (OKLO) currently stands at 3.5 days, up 42.6% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since September 2025, the figure has increased by 248%. Across the settlements charted above, it has ranged from 1.0 to 3.5 days.
OKLO Company Profile & Sector Positioning
Oklo (OKLO) operates in the Utilities - Independent Power Producers industry within the broader Utilities sector and is listed on the NYSE.
Investors comparing OKLO often look at related companies in the same sector, including Pinnacle West Capital Corporation (PNW), Korea Electric Power Corp (KEP), Evergy, Inc. (EVRG), Alliant Energy Corporation (LNT), and Edison International (EIX). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate OKLO's relative position within its industry.