Hyliion Holdings Corp. (HYLN) experienced a significant rally on Friday, with shares closing at $5.99, a gain of 42.6% for the session. The stock reached an intraday high of $6.24 before settling slightly lower, and after-hours trading saw shares at $5.93. The surge was driven by the company's announcement that its KARNO generator would be evaluated for sea trials on the USX-1 Defiant unmanned vessel, a project supported by the U.S. Navy.
Trading volume for Hyliion shares was exceptionally high at approximately 20 million shares, compared to the prior day's close of $4.20. The stock has gained about 28% for the week, recovering from a slow start on Monday. This move outpaced the broader market, with the S&P 500 rising only 0.37%, the Dow Jones Industrial Average adding 0.58%, and the Nasdaq 100 gaining 0.42% on Friday.
KARNO Technology and Navy Contract
Hyliion's KARNO generator is a linear heat-powered generator that converts thermal energy into electricity. The company is developing an 800-kilowatt shipboard system based on four 200-kilowatt cores specifically for the USX-1 Defiant sea-trial program. The Office of Naval Research has selected the USX-1 Defiant as a potential test vessel in collaboration with DARPA. CEO Thomas Healy described the Defiant as a "fundamental shift" in naval platforms, emphasizing the need for power systems that are efficient, resilient, and capable of operating without human intervention.
Financial Performance and Outlook
Hyliion reported first-quarter revenue of $2.8 million, a fourfold increase from the previous quarter. The company reaffirmed its 2026 revenue forecast of $10 million and ended March with $139.3 million in cash and investments. CEO Healy characterized the quarter as "tangible progress" and stated that execution will be the primary focus for the remainder of the year. The company is targeting $40 million to $50 million in additional U.S. military work in 2026, with approximately $20 million in Office of Naval Research contracts already underway, subject to standard government contracting procedures.
Data Center and Onsite Power Opportunities
Hyliion is also exploring opportunities in the data center market. The company signed a non-binding letter of intent with VFG Holdings for up to 250 KARNO Cores, representing 50 megawatts of capacity over five years. However, this agreement does not require a purchase unless a final contract is reached. Hyliion has approximately 750 KARNO Cores under similar non-binding letters of intent with customers in data center, military, and other sectors, representing potential revenue of more than $400 million based on current pricing.
Governance and Risks
At the company's annual meeting last week, shareholders elected three board members, approved Grant Thornton as auditor, supported executive compensation in a non-binding vote, and passed an amendment to the 2024 equity plan. These governance updates were not the catalyst for the stock's surge but were noted during a week of significant price movement.
Investors should be aware of the risks associated with Hyliion. The company remains in an early stage and has a history of losses. Customer letters of intent are not binding orders, and the Navy contract could face delays due to development or procurement issues. Any setbacks in sea trials, safety approvals, or customer deployments could undermine the recent price increase. U.S. markets are closed Monday for Memorial Day, with trading resuming Tuesday.
