X-Energy IPO Debuts on Nasdaq
X-Energy IPO set a strong Nasdaq open after an upsized, heavily subscribed offering, boosting early valuation and concentrating near-term trader flows.

KEY TAKEAWAYS
- Priced at $23 per share, the upsized IPO raised $1.02 billion.
- The offering was 15 times oversubscribed, signaling heavy institutional demand.
- Shares opened at $30.11, a 30.9% first-day gain and implied market capitalization near $11.9 billion.
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X-Energy IPO debuted on Nasdaq on April 24, 2026, opening well above its marketed range after an upsized offering that drew institutional orders 15 times the available shares.
Offer, Listing, and Trading Debut
X-Energy, Inc. priced its initial public offering at $23.00 per share, selling 44,254,659 Class A common shares and raising $1.02 billion in gross proceeds, according to a press release on April 23, 2026. The offering was upsized by 1.4 million shares from the original target of 42.9 million, which had been marketed in a $16–$19 range. The deal included a 30-day greenshoe option for 6,638,198 additional shares. The Securities and Exchange Commission declared the registration statement effective the same day.
The company secured approval to list on the Nasdaq Global Select Market under the ticker XE, with trading beginning April 24. The offering was expected to close April 27, subject to customary conditions. J.P. Morgan, Morgan Stanley, Jefferies, and Moelis & Company served as lead joint bookrunners, with Cantor Fitzgerald, UBS Investment Bank, TD Securities, Guggenheim Securities, WR Securities, and Nomura among additional bookrunners.
Shares opened at $30.11, a 30.9% gain on the first day, implying a market capitalization near $11.9 billion at the open. The strong debut followed heavy institutional demand, with the offering oversubscribed 15 times and including a $105 million commitment from ARK Investment Management.
X-Energy, headquartered in Rockville, Maryland, was founded in 2009. It develops the Xe-100 high-temperature gas-cooled reactor and proprietary nuclear fuel technology, focusing on small modular reactors (SMRs) and scalable systems for electricity generation and industrial heat. The company counts Amazon, Dow, and Centrica among its partners. Amazon's Climate Pledge Fund led a $500 million financing round in 2024 and has a signed commitment with X-Energy to bring more than 5 gigawatts of projects online across the U.S. by 2039, providing a commercial demand anchor as the company moves from development toward deployment.





