X-Energy’s Shares Jump in IPO, Delivering Wins to Amazon and Ken Griffin - WSJ
```json { "title": "X-Energy IPO Raises $1.02B, Shares Surge 27% on Nasdaq", "metaDescription": "X-Energy's nuclear IPO raised $1.02 billion on April 24, 2026, with shares surging 27% on debut. Amazon and Ken Griffin score major wins.", "content": "<h2>X-Energy IPO Raises $1.02 Billion as Nuclear Shares Surge 27% on Nasdaq Debut</h2><p>Nuclear energy developer X-Energy Inc. (NASDAQ: XE) made a striking market debut on April 24, 2026, raising $1.02 billion in what has been described as the largest nuclear IPO on record. Shares priced at $23 — well above the company's initial marketed range of $16 to $19 — and closed the day up approximately 27% at $29.20, giving the Rockville, Maryland-based firm a market valuation of around $11.5 billion. The IPO delivered substantial paper gains to high-profile backers including Amazon.com and Citadel's Ken Griffin, and was 15 times oversubscribed ahead of its Nasdaq listing.</p><h2>IPO Pricing, Trading, and Key Financial Details</h2><p>X-Energy sold 44,254,659 shares of Class A common stock at $23 per share — pricing 21% above the top of its marketed range and above the 42.86 million shares initially planned. On its first day of trading, shares opened at $30.11, a 31% premium to the IPO price, before closing at $29.20. The result was a market capitalization of approximately $11.5 billion and a fully diluted valuation of roughly $12 billion, according to PitchBook.</p><p>The IPO was led by JPMorgan Chase & Co., Morgan Stanley, Jefferies Financial Group Inc., and Moelis & Co. Underwriters were also granted a 30-day option to purchase up to an additional 6.6 million shares; if fully exercised, total IPO proceeds would reach approximately $1.169 billion.</p><p>Prior to going public, X-Energy raised more than $1.4 billion in private capital, including a $700 million Series D round in November 2025, backed by Amazon, Jane Street, ARK Invest, Citadel's Ken Griffin, and Ares Management funds. ARK Investment Management also expressed interest in buying up to $105 million in shares at the IPO price, according to filings cited by Tech Funding News.</p><h2>Amazon and Ken Griffin Among the Big Winners</h2><p>Amazon.com emerged as one of the most consequential beneficiaries of X-Energy's public debut. The tech giant owned 65.8 million shares, or approximately 29% of X-Energy, before the IPO, according to regulatory filings cited by PitchBook. Amazon also holds a commercial agreement with X-Energy to purchase up to 5 gigawatts of nuclear power by 2039 — a deal that underscores the company's strategic interest in securing long-term, low-carbon electricity supply for its data center infrastructure.</p><p>Ken Griffin, founder of Citadel, scored paper gains of more than $300 million from a $100 million personal investment he made approximately a year-and-a-half before the IPO. Griffin's interest in X-Energy followed a speech he gave in Singapore in 2023 on the growing need for nuclear power to satisfy the electricity demands of emerging data centers.</p><p>Ares Management was also set to make more than four times its over-$160 million investment in X-Energy based on the IPO closing price, according to reporting by MSN and the Wall Street Journal. The Ares result carries a note of irony: the firm had previously been party to a failed SPAC merger with X-Energy. In December 2022, X-Energy and Ares Acquisition Corporation announced a business combination that would have taken the company public at a valuation of approximately $1.05 billion. That deal was mutually terminated in October 2023.</p><h2>A Failed SPAC, a Private Capital Pivot, and a Record IPO</h2><p>The collapse of the Ares SPAC deal in 2023 marked a pivotal moment in X-Energy's trajectory. At the time of termination, both parties cited difficult market conditions. In the words of the announcement, the decision was attributed to "persistently volatile public market conditions." David Kaplan, Co-Chairman and CEO of Ares Acquisition Corporation and Co-Founder, Director and Partner of Ares Management Corporation, said at the time: <em>"While the persistently volatile public market conditions over the course of 2023 have led to this mutual decision, we remain steadfast in our belief in X-energy's exceptional talent, differentiated nuclear technology and mission to deliver affordable, zero-carbon energy on a global scale."</em></p><p>Rather than pursue another SPAC, X-Energy turned to private capital markets — raising more than $1.4 billion before eventually pursuing a traditional IPO route. That decision proved consequential: X-Energy became the first sizable advanced reactor company to pursue a traditional IPO, after competitors Oklo and NuScale Power went public via SPAC transactions. The contrast in valuations at exit speaks for itself.</p><h2>What X-Energy Actually Does — and Where It Stands Today</h2><p>Founded in 2009 by aerospace veteran Kamal 'Kam' Ghaffarian, X-Energy is a developer of advanced small modular reactors (SMRs) and nuclear fuel technology. Its flagship product, the Xe-100, is an 80-megawatt high-temperature gas-cooled reactor that uses helium as a coolant. The Xe-100 can be bundled with additional reactors to scale up to 960 megawatts — offering flexibility that conventional large-scale nuclear plants cannot match.</p><p>X-Energy's business model sets it apart from some competitors. Rather than owning and operating nuclear plants, the company licenses its reactor technology and sells nuclear fuel produced at its fabrication facility in Oak Ridge, Tennessee, where construction began in 2025. CEO J. Clay Sell has described the company's operational ambitions in straightforward terms: <em>"We want to build nuclear power plants, quite frankly, the same way Amazon has built fulfillment centers."</em></p><p>Despite the market enthusiasm, X-Energy has yet to begin construction on any of its reactor facilities. The company booked $109 million in revenue for the 12 months ended December 31, 2025, according to Renaissance Capital. Its order pipeline, however, exceeds 11 gigawatts, thanks to partnerships with Amazon, Dow, and Centrica. X-Energy and Dow submitted a construction permit application to the U.S. Nuclear Regulatory Commission for a proposed project in Seadrift, Texas, in March 2025 — a deal that would supply heat and power to a Dow chemical plant.</p><h2>Industry Implications: Nuclear's Moment — and Its Skeptics</h2><p>X-Energy's IPO is being closely watched as a signal of institutional appetite for advanced nuclear energy at a time when AI-driven electricity demand is reshaping energy investment priorities. The offering was 15 times oversubscribed, and the debut-day surge reinforced the narrative that investors are willing to assign significant valuations to nuclear companies even before reactors are built.</p><p>Not every nuclear company benefited from X-Energy's moment in the spotlight. Shares of Oklo (OKLO) and NuScale Power (SMR) — both of which went public via SPAC transactions — declined on the same day X-Energy debuted on Nasdaq, according to TipRanks. Whether this reflects capital rotation into X-Energy specifically or broader skepticism about SPAC-listed nuclear firms remains an open question.</p><p>X-Energy's IPO also sets a benchmark that the sector will be measured against going forward. The company enters the public markets with an 11-gigawatt order pipeline, a commercial fuel fabrication facility under construction, a regulatory application filed for its first reactor project, and a roster of credible industrial and technology partners. But construction has not yet begun on any reactor, and the path from order pipeline to operational megawatts involves regulatory, technical, and financing hurdles that the IPO itself does not resolve.</p><h2>What Comes Next for X-Energy</h2><p>In the near term, attention will focus on whether underwriters exercise their option to purchase up to 6.6 million additional shares — a move that would bring total IPO proceeds to approximately $1.169 billion. Longer term, the milestones that matter most are regulatory: specifically, whether the NRC approves the construction permit for the Seadrift, Texas project, and when X-Energy breaks ground on its first reactor facility.</p><p>The company's Oak Ridge, Tennessee fuel fabrication facility — already under construction as of 2025 — represents a nearer-term revenue opportunity, as X-Energy's business model includes selling nuclear fuel independently of reactor construction timelines. With $109 million in annual revenue already on the books and a $23-per-share IPO price that the market immediately pushed to $29.20, investors appear willing to price in significant execution on those future milestones.</p><p>Whether the euphoria of a record nuclear IPO translates into long-term value will depend on factors that remain outside any investor's control: regulatory timelines, construction costs, energy policy, and the pace at which AI data center operators actually need new power capacity to come online. For now, X-Energy has the capital, the partners, and the market attention to pursue its ambitions — and the pressure that comes with a $11.5 billion public valuation to deliver on them.</p><p>For more tech news, visit our <a href=\"/news\">news section</a>.</p>", "excerpt": "Nuclear energy developer X-Energy Inc. raised $1.02 billion in its Nasdaq IPO on April 24, 2026, with shares closing up 27% and delivering major paper gains to backers including Amazon and Ken Griffin of Citadel. Described as the largest nuclear IPO on record, the offering was 15 times oversubscribed and priced 21% above the top of its initial marketed range. The debut marks a milestone for the advanced small modular reactor industry, though X-Energy has yet to begin construction on any reactor facility.", "keywords": ["X-Energy IPO", "nuclear energy stocks", "small modular reactors", "Amazon nuclear power", "Ken Griffin Citadel"], "slug": "x-energy-ipo-raises-1-billion-shares-surge-nasdaq" } ```