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StocksMediumUpdated×7•Originally published 24 April 2026•Updated 24 April 2026•

1 min read

X-Energy Shares Surge 27% in Trading Debut After $1.02 Billion Upsized IPO

Key Facts

1Nuclear reactor developer X-Energy raised $1.02 billion in its upsized initial public offering in the United States.

Shares of Amazon-backed nuclear reactor developer X-Energy delivered a strong performance in their Nasdaq debut on Friday. The stock opened at $30.11 and concluded its first trading session at $29.20, representing a 27% increase over the IPO price of $23.00. The company successfully raised $1.02 billion by pricing 44.3 million shares, significantly exceeding the initial target range of $16 to $19. Following the listing, CEO J. Clay Sell told CNBC that the company aims to build nuclear power plants using a standardized model similar to how Amazon builds fulfillment centers. The stock's performance underscores intensifying investor interest in advanced nuclear energy as essential infrastructure for the AI-driven energy boom. This capital injection and positive market reaction will accelerate X-Energy's strategic projects in the global energy transition.

about 1 month ago

Version History

2 additional sources confirmed this story

Version 7about 1 month ago

What changed: Updated the story to include the Nasdaq opening price of $30.11 and the final first-day closing price of $29.20, adjusting the total gain to 27%.

Version 6about 1 month ago

What changed: Added specific details regarding the initial target price range ($16-$19) and identified the company's headquarters location in Rockville, Maryland.

Version 5about 1 month ago

What changed: Added CEO comments to CNBC regarding the company's strategy to standardize nuclear plant construction.

Version 4about 1 month ago

What changed: Updated the story to include the 34% surge in share price upon the commencement of official trading on Friday.

Version 3about 1 month ago

What changed: Added the specific share count (44.3 million) and noted that the $23 price exceeded the original $16-$19 range and the initial $800 million fundraising target.

Version 2about 1 month ago

What changed: Added information regarding Ken Griffin's involvement and the context of a previously cancelled IPO attempt prior to the AI boom.

Version 1about 1 month ago

What changed: Added specific pricing details at $23.00 per share, the exact number of shares offered, and the inclusion of an overallotment option for underwriters.