HVII shares rise 17% after hours on ONE Nuclear merger completion
- HVII shares rose 17.44% to $5.24 after hours following merger completion
- Intraday decline of 50.88% to $4.46 preceded the after-hours rally
- Combined entity renamed ONE Nuclear Energy Inc., trading as ONEN
- Portfolio includes 5 GW Louisiana projects combining nuclear SMRs and natural gas
- HVII trades near 52-week low with RSI at 29.71 despite recent surge

*this image is generated using AI for illustrative purposes only.
Hennessy Capital Investment Corp. VII (NASDAQ: HVII) shares gained 17.44%, or $0.78, to $5.24 after the bell on Wednesday, following the completion of its business combination with ONE Nuclear Energy LLC.
The announcement reversed an intraday decline of 50.88% to $4.46. Hennessy VII shareholders approved the deal at an extraordinary general meeting on August 24, 2026. The company has since completed its domestication as a Delaware corporation, with ONE Nuclear becoming its wholly owned subsidiary. The combined entity, renamed ONE Nuclear Energy Inc., is scheduled to begin trading on the Nasdaq Global Market under the ticker "ONEN" around Thursday.
Portfolio composition and capacity
ONE Nuclear’s strategy combines fast-to-market natural gas generation with advanced nuclear small modular reactor (SMR) technologies. The company’s initial pipeline focuses on utility-scale projects tailored to specific customer needs and grid constraints. The 5 GW Louisiana Portfolio consists of three distinct projects designed to deliver reliable baseload power.
| Project | Technology Type | Capacity / Details |
|---|---|---|
| Project Amberjack | Advanced Nuclear SMR | Up to 1 GW generation capacity |
| Project Cayman | Natural Gas & BESS | 2.88 GW gas plant; 700 MW / 2.88 GWh battery storage; co-located data center |
| Project Barracuda | Natural Gas & BESS | 1.2 GW gas plant; 300 MW / 1,200 MWh battery storage; co-located 1 GW data center |
Strategic positioning and advisory support
Richard Taylor, Co-Founder, Chairman and Chief Executive Officer of ONE Nuclear, stated that the listing provides the capital access necessary to accelerate the development of the Louisiana Portfolio and meet the growing power demands of AI and data center customers. Daniel J. Hennessy, Chairman and CEO of Hennessy VII, noted that the public listing enables the completion of growth plans.
B. Riley Securities, Inc. served as the financial advisor to ONE Nuclear, while Rose & Ward PLLC and Nelson Mullins Riley & Scarborough, LLP acted as legal advisors. Cohen & Company Capital Markets served as the exclusive financial advisor and lead capital markets advisor to Hennessy VII, supported by legal counsel from Sidley Austin LLP and Appleby (Cayman) Ltd.
Trading metrics and technical analysis
Hennessy Capital Investment Corp. VII has a market capitalization of $116.06 million, a 52-week high of $12.04 and a 52-week low of $3.69. The company has approximately 19.69 million shares outstanding. The stock of the Nevada-based special purpose acquisition company has fallen 56.32% over the past 12 months. Currently, HVII is trading at about 9% of its 52-week range, indicating it is closer to its 52-week low. The Relative Strength Index (RSI) of HVII stands at 29.71.
What the numbers show
The disclosed portfolio data reveals a strategic diversification across technology types and end-user applications. While Project Amberjack relies solely on advanced nuclear technology for up to 1 GW of capacity, Projects Cayman and Barracuda integrate natural gas generation with significant Battery Energy Storage Systems (BESS) and co-located data centers. This structure indicates a dependency on hybrid solutions to balance intermittent renewable loads or peak demands, specifically targeting the high-reliability requirements of data center operators alongside traditional utility needs.
How will the regulatory approval timeline for Project Amberjack's SMR technology impact ONE Nuclear's ability to meet near-term data center power demands?
What specific long-term power purchase agreements (PPAs) has ONE Nuclear secured with data center operators to underpin the cash flow of the 5 GW Louisiana Portfolio?
How does the hybrid natural gas and BESS model in Projects Cayman and Barracuda position ONE Nuclear against emerging competitors offering pure renewable-plus-storage solutions?


























