AI boom drives nuclear energy investment to heat up, underground nuclear reactor startup company Deep Fission (FISN.US) submits US stock IPO application, plans to issue 6 million common shares.

date
23:47 20/05/2026
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GMT Eight
The nuclear energy startup company Deep Fission, headquartered in Berkeley, California, officially submitted an IPO application on Wednesday, planning to debut on the Nasdaq market.
With the surge in global electricity demand driven by artificial intelligence and data centers, Wall Street's enthusiasm for advanced nuclear energy technology continues to heat up. Nuclear energy startup Deep Fission, headquartered in Berkeley, California, formally submitted its IPO application on Wednesday, planning to debut on the Nasdaq market. According to the S-1 filing submitted to the U.S. Securities and Exchange Commission, Deep Fission plans to issue 6 million shares of common stock, with the stock code "FISN." The company expects the offering price range to be between $24 and $26 per share, with an estimated valuation of approximately $1.65 billion. Founded by CEO Elizabeth Muller, Deep Fission is developing a new type of underground small modular nuclear reactor (SMR) technology that differs from traditional nuclear power plants. The core idea is to deploy small nuclear reactors deep underground in boreholes to reduce construction costs and enhance safety. The company states that this technology draws on drilling experience from the oil and gas industry. Earlier, nuclear reactor developer X-Energy completed a large IPO of over $1 billion just a few weeks ago, with a market value reaching close to $12 billion. As the demand for AI computing power continues to surge, large-scale cloud service providers and AI companies are accelerating their search for stable, 24/7, zero-carbon emitting electricity sources, with nuclear energy being seen as a potential solution by more and more investors. The market generally believes that relying solely on wind energy and renewable energy sources like CECEP Solar Energy may struggle to meet the huge electricity demands brought by AI infrastructure in the future. Advanced nuclear energy companies are attempting to capitalize on this AI energy cycle. According to the prospectus, Deep Fission plans to deploy compact pressurized water reactors in narrow boreholes deep underground. The company believes that this underground design can not only reduce land use but also enhance the safety of nuclear reactors and avoid the long-standing challenges of large-scale ground construction faced by traditional nuclear power projects. However, the company also warns investors that commercial nuclear reactor income has not yet been realized, and investing in its stock "carries high risks." Although the advanced nuclear energy industry still faces challenges such as long regulatory approval periods, high capital requirements, and technology validation, the electricity demand brought by AI is changing market perceptions of the nuclear energy industry in the long term.