X-Energy (XE) made a splash on its first day of trading on the Nasdaq Global Select Market, with Class A common shares closing at $29.20 on Friday, April 25, 2026. That marks a nearly 27% gain from the initial public offering price of $23 per share, reflecting strong investor appetite for nuclear energy plays tied to the booming artificial intelligence sector.
The Amazon-backed nuclear reactor developer raised approximately $1.02 billion from the sale of 44,254,659 Class A common shares. The company had originally marketed the IPO in a range of $16 to $19 per share but increased both the price and the size of the offering due to robust demand. Underwriters also have a 30-day option to purchase up to an additional 6,638,198 shares.
At the closing price, X-Energy's market capitalization stands at roughly $11.9 billion, according to Reuters. The listing comes amid surging interest in electricity generation, particularly from data centers and AI computing operations that require reliable, around-the-clock power. X-Energy's small modular reactors (SMRs) are designed to provide a scalable and consistent energy source, complementing intermittent renewables like wind and solar.
J. Clay Sell, X-Energy's Chief Executive, told Reuters that the public offering would enhance transparency for customers and investors, provide stock-based compensation to attract and retain talent, and raise capital for supply chain expansion. "We wanted to take this opportunity to build a larger balance sheet that allows us to reduce the risk of getting to scale," Sell said.
The company's Xe-100 reactor uses helium for cooling, a departure from traditional water-cooled designs. X-Energy also operates a nuclear fuel division, which it expects to generate recurring revenue as more reactors become operational. The company's initial commercial deployment is anchored by partnerships with Amazon, Dow, and Centrica. In a securities filing, X-Energy disclosed collaboration with Dow and Amazon at its first announced sites in Seadrift, Texas, and Richland, Washington.
The Dow project is still under regulatory review. In March 2025, a Dow subsidiary filed a construction permit application with the U.S. Nuclear Regulatory Commission, which officially docketed the request in May 2025, initiating an 18-month review period. If the timeline holds and construction proceeds, Dow anticipates commercial operation by the early 2030s.
X-Energy joins a growing list of publicly traded advanced nuclear companies, including Oklo and NuScale Power. On Friday, shares of Oklo and NuScale slipped, while X-Energy's debut attracted buyers. However, the company faces significant risks. In its IPO filings, X-Energy cautioned that it has yet to deliver a commercial Xe-100 reactor or make final investment decisions for any project. Potential setbacks include licensing delays, funding requirements, supply-chain disruptions, and limited access to high-assay low-enriched uranium (HALEU) fuel.
The company also signaled that losses are expected to continue as it transitions from development to commercialization, and it may need additional debt or equity financing. If investors begin to question whether the initial rally has outpaced progress on licensing or revenue generation, the stock could face downward pressure.
