X-energy IPO Shatters Records Amidst Nuclear Renaissance Fueled by AI and Electrification

Advanced nuclear reactor company X-energy commenced trading on Friday, marking a significant milestone for the nuclear industry which is experiencing a surge of renewed interest, largely propelled by the burgeoning artificial intelligence (AI) boom and the global push for electrification. The company’s initial public offering (IPO) was a resounding success, with shares opening at $30.11, significantly surpassing the initial pricing. X-energy had upsized its offering to price its shares at $23 each, exceeding its initial projected range of $16 to $19 per share. This offering raised over $1 billion, establishing it as the largest public offering in the nuclear sector on record. By the close of trading, X-energy’s stock had appreciated by 27%, finishing the day at $29.20.

At the core of X-energy’s innovative approach is its xe-100 reactor, a modular design with a capacity of 80 megawatts. This design allows for scalability, with multiple xe-100 units capable of being bundled together to achieve a total output of up to 960 megawatts. The xe-100 is classified as a high-temperature gas-cooled reactor (HTGR). This advanced design not only facilitates electricity generation but also unlocks its potential for decarbonizing challenging industrial applications that require high temperatures, such as chemical production. In contrast, all nuclear reactors currently operational in the United States are light water reactors.

Despite not having commenced construction on any of its reactor facilities yet, X-energy has already secured a substantial order pipeline exceeding 11 gigawatts. This impressive backlog is a direct result of strategic partnerships with prominent companies, including Amazon, Dow, and Centrica. These collaborations underscore the growing confidence in X-energy’s technology and its potential to contribute to a cleaner energy future.

Prior to its public debut, X-energy had successfully raised over $1.4 billion in private funding. Notably, a $700 million Series D fund in November attracted significant investment from major players such as Amazon, Jane Street, ARK Invest, Citadel’s Ken Griffin, and various Ares Management funds. The company has also received crucial financial support from the U.S. Department of Energy, highlighting governmental backing for advanced nuclear technologies.

X-energy’s decision to pursue a traditional IPO route distinguishes it from some of its competitors in the advanced reactor space. Companies like Oklo and NuScale opted for Special Purpose Acquisition Company (SPAC) transactions to go public. X-energy itself had previously explored a listing via a SPAC merger but ultimately discontinued that plan in 2023, opting for the more conventional IPO path.

The company’s business model further sets it apart. Unlike some rivals, X-energy does not intend to own and operate nuclear power plants. Instead, its strategy focuses on licensing its proprietary technology to third parties. Additionally, X-energy will be a supplier of nuclear fuel, manufactured at its fabrication facility located in Oak Ridge, Tennessee. Construction on this vital facility commenced in 2025.

The TRISO Facility, operated by X-Energy, plays a critical role in the company’s fuel production capabilities.

In a significant regulatory step, X-energy and Dow jointly submitted a construction permit application to the U.S. Nuclear Regulatory Commission (NRC) in March 2025 for their proposed reactor project in Seadrift, Texas. This application initiates an 18-month review process, which is a part of a two-step regulatory procedure that will ultimately include an application for an operating license.

X-energy is also collaborating with Amazon on a large-scale deployment initiative. The partnership aims to deploy 5 gigawatts of nuclear power across the United States by 2039. The initial project under this agreement will be a 320-megawatt facility, developed in conjunction with Washington utility Energy Northwest, as previously announced by the companies. This collaboration signifies a substantial commitment from a major technology company towards integrating advanced nuclear power into its energy strategy. The growing partnerships and the successful IPO demonstrate a strong market appetite for innovative nuclear solutions, positioning X-energy as a key player in the evolving global energy landscape.