On Friday, advanced nuclear fission company Oklo, for which Sam Altman serves as chairman, started trading on the New York Stock Exchange.
The company, which has yet to generate any revenue, went public through a special purpose acquisition company called AltC Acquisition Corp., founded and led by Altman.
Under the ticker symbol “OKLO,” shares were trading at just above $15 on Friday morning. Oklo was set to receive more than $306 million in gross proceeds upon closing the transaction, according to a release.
Oklo’s business model is based on commercializing nuclear fission, the reaction that fuels all nuclear power plants. Instead of conventional reactors, the company aims to use mini nuclear reactors housed in A-frame structures. Its goal is to sell the energy to end users such as the U.S. Air Force and big tech companies.
Oklo is currently working to build its first small-scale reactor in Idaho, which could eventually power the types of data centers that OpenAI and other artificial intelligence companies need to run their AI models and services.
Altman, co-founder and CEO of OpenAI, has said he sees nuclear energy as one of the best ways to solve the problem of growing demand for AI, and the energy that powers the technology, without relying on fossil fuels. Microsoft co-founder Bill Gates and Amazon founder Jeff Bezos have also invested in nuclear plants in recent years.
“I don’t see a way for us to get there without nuclear,” Altman told CNBC in 2023. “I mean, maybe we could get there just with solar and storage. But from my vantage point, I feel like this is the most likely and the best way to get there.”
In an interview with CNBC Thursday, Oklo CEO Jacob DeWitte confirmed that the company has yet to generate revenue and has no nuclear plants deployed at the moment. He said the company is targeting 2027 for its first plant to come online.
Going the SPAC route is risky. So-called reverse mergers became popular in the low-interest rate days of 2020 and 2021 when tech valuations were soaring and investors were looking for growth over profit. But the SPAC market collapsed in 2022 alongside rising rates and hasn’t recovered.
AI-related companies, on the other hand, are the new darlings of Wall Street.
“SPACs haven’t exactly had the best performances in the past couple of years, so for us to have sort of the outcome that we’ve had here is obviously a function of the work we put in, but also what we’re building and also the fact that the market sees the opportunity sets here,” said DeWitte, who co-founded the company in 2013. “I think it’s very promising on multiple fronts for [the] nuclear, AI, data center push, as well as the energy transition piece.”
The company has seen its fair share of regulatory setbacks. In 2022, the U.S. Nuclear Regulatory Commission denied Oklo’s application for an Idaho reactor. The company has been working on a new application, which it isn’t aiming to submit to the NRC until early next year, DeWitte said, adding that it’s currently in the “pre-application engagement” stage with the commission.
Altman got involved with Oklo while president of the startup incubator Y Combinator. Oklo went into the program in 2014 after an earlier meeting between Altman and DeWitte. In 2015, Altman invested in the company and became chairman.
It’s not Altman’s only foray into nuclear energy or other infrastructure that could power large-scale AI growth.
In 2021, Altman led a $500 million funding round in clean energy firm Helion, which is working to develop and commercialize nuclear fusion. Helion said in a blog post at the time that the capital would go toward its electricity demonstration generator, Polaris, “which we expect to demonstrate net electricity from fusion in 2024.”
Altman didn’t respond to a request for comment.
In recent years, Altman has also poured money into chip endeavors and investments that could help power the AI tools OpenAI builds.
Just before his brief ouster as OpenAI CEO in November, he was reportedly seeking billions of dollars for a chip venture codenamed “Tigris” to eventually compete with Nvidia.
Altman in 2018 invested in AI chip startup Rain Neuromorphics, based near OpenAI’s San Francisco headquarters. The next year, OpenAI signed a letter of intent to spend $51 million on Rain’s chips. In December, the U.S. compelled a Saudi Aramco-backed venture capital firm to sell its shares in Rain.
DeWitte told CNBC that the data center represents “a pretty exciting opportunity.”
“What we’ve seen is there’s a lot of interest with AI, specifically,” he said. “AI compute needs are significant. It opens the door for a lot of different approaches in terms of how people think about designing and developing AI infrastructure.”
Traders work on the floor at the New York Stock Exchange (NYSE), on the day of Circle Internet Group’s IPO, in New York City, U.S., June 5, 2025.
Brendan McDermid | Reuters
Stablecoin issuer Circle Internet Group has applied for a national trust bank charter, moving forward on its mission to bring stablecoins into the traditional financial world after the firm’s big market debut this month, CNBC confirmed.
Shares rose 1% after hours.
If the Office of the Comptroller of the Currency grants the bank charter, Circle will establish the First National Digital Currency Bank, N.A. Under the charter, Circle, which issues the USDC stablecoin, will also be able to offer custody services in the future to institutional clients for assets, which could include representations of stocks and bonds on a blockchain network.
Reuters first reported on Circle’s bank charter application.
There are no plans to change the management of Circle’s USDC reserves, which are currently held with other major banks.
Circle’s move comes after a wildly successful IPO and debut trading month on the public markets. Shares of the company are up 484% in June. The company is also benefiting from a wave of optimism after the Senate’s passage of the GENIUS Act, which would give the U.S. a regulatory framework for stablecoins.
Having a federally regulated trust charter would also help Circle meet requirements under the GENIUS Act.
“Establishing a national digital currency trust bank of this kind marks a significant milestone in our goal to build an internet financial system that is transparent, efficient and accessible,” Circle CEO Jeremy Allaire said in a statement shared with CNBC. “By applying for a national trust charter, Circle is taking proactive steps to further strengthen our USDC infrastructure.”
“Further, we will align with emerging U.S. regulation for the issuance and operation of dollar-denominated payment stablecoins, which we believe can enhance the reach and resilience of the U.S. dollar, and support the development of crucial, market neutral infrastructure for the world’s leading institutions to build on,” he said.
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Mark Zuckerberg, chief executive officer of Meta Platforms Inc., during the Meta Connect event on Wednesday, Sept. 25, 2024.
Bloomberg | Bloomberg | Getty Images
Meta shares hit a record high on Monday, underscoring investor interest in the company’s new AI superintelligence group.
The company’s shares reached $747.90 during midday trading, topping Meta’s previous stock market record in February when it began laying off the 5% of its workforce that it deemed “low performers.”
Meta joins Microsoft and Nvidia among tech megacaps that have reached new highs of late, all closing at records Monday. Apple, Amazon, Alphabet and Tesla remain below their all-time highs reached late last year or early this year.
Meta CEO Mark Zuckerberg has been on an AI hiring blitz amid fierce competition with rivals such as OpenAI and Google parent Alphabet. Earlier in June, Meta said it would hire Scale AI CEO Alexandr Wang and some of his colleagues as part of a $14.3 billion investment into the executive’s data labeling and annotation startup.
The social media company also hired Nat Friedman and his business partner, Daniel Gross, the chief of Safe Superintelligence, an AI startup with a valuation of $32 billion, CNBC reported on June 19. Meta’s attempts to buy Safe Superintelligence were rebuffed by the startup’s founder and AI expert Ilya Sutskever, the report noted.
Wang and Friedman are the leaders of Meta’s new Superintelligence Labs, tasked with overseeing the company’s artificial intelligence foundation models, projects and research, a person familiar with the matter told CNBC. The term superintelligence refers to technology that exceeds human capability.
Bloomberg News first reported about the new superintelligence unit.
Meta has also snatched AI researchers from OpenAI. Sam Altman, OpenAI’s CEO, said during a podcast that Meta was offering signing bonuses as high as $100 million.
Andrew Bosworth, Meta’s technology chief, spoke about the social media company’s AI hiring spree during a June 20 interview with CNBC’s “Closing Bell Overtime,” saying that the talent market is “really incredible and kind of unprecedented in my 20-year career as a technology executive.”
An electric air taxi by Joby Aviation flies near the Downtown Manhattan Heliport in Manhattan, New York City, U.S., November 12, 2023.
Roselle Chen | Reuters
Joby Aviation stock soared about 12% as the flying air taxi maker got closer to launching a service in the United Arab Emirates.
The electric vertical takeoff and landing, or eVTOL, company said Monday that it delivered its first aircraft to the UAE and has completed piloted flight tests as it readies for a 2026 launch in the region.
“Our flights and operational footprint in Dubai are a monumental step toward weaving air taxi services into the fabric of daily life worldwide,” said founder and CEO JoeBen Bevirt in a release. He called the Middle East nation a “launchpad for a global revolution in how we move.”
Joby’s planned launch in the UAE was announced in February 2024 as part of an agreement with Dubai’s Road and Transport Authority. The deal included exclusive rights to conduct air taxi service in Dubai for six years.
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As part of the project, Joby said in November that it began building one vertiport at Dubai International Airport, with three additional locations slated for Palm Jumeirah and Dubai’s downtown and marina. Joby also announced an air taxi agreement with three Abu Dhabi government departments in 2024.
The California-based company has made other expansion moves in the Middle East. Shares jumped earlier this month after Saudi Arabian firm Abdul Latif Jameel announced a roughly $1 billion investment for up to 300 eVTOLs. The firm participated in Joby’s Series C funding round.
Joby shares have surged more than 32% this year, swelling its market capitalization to over $9 billion.
Demand for air taxis, which take off and land similar to helicopters, has gained momentum in recent years. The service faces regulatory and safety hurdles but has been lauded for its ability to cut traffic congestion and slash emissions.
Earlier this month, President Donald Trump signed an executive order that included a pilot program for testing electric air taxis.