Key facts
- Hyliion Holdings (HYLN) stock reached a new 52-week high of $7.60.
- The stock has gained over 250% in six weeks.
- CEO Thomas Healy is promoting Hyliion's KARNO generator technology for AI data centers.
- KARNO generators can run on natural gas, hydrogen, and propane for on-site electricity.
- Hyliion has nearly 750 KARNO cores under non-binding LOIs, representing $400 million in potential revenue.
- The company is targeting KARNO commercialization by the end of 2026.
Hyliion Holdings (HYLN) stock closed nearly 18% higher on June 4, adding another 12% in overnight trading to reach a new 52-week high of $7.60. This surge represents a gain of over 250% in six weeks, pushing the company's market capitalization back above $1 billion. The primary catalyst for this stock performance is CEO Thomas Healy's active promotion of Hyliion's KARNO generator technology as a solution for the power constraints in AI infrastructure. Healy argues that while Nvidia provides compute and Vertiv handles internal power distribution, on-site electricity generation remains an unsolved problem, which Hyliion's KARNO technology aims to address. The KARNO generator, acquired from GE Additive, is a fuel-agnostic heat generator capable of running on natural gas, hydrogen, and propane to deliver on-site electricity. Hyliion is also generating early revenue through U.S. military contracts, with approximately $20 million in current contracts and expectations of signing an additional $40 million to $50 million in 2026. The company has secured non-binding letters of intent (LOIs) for nearly 750 KARNO cores, which could represent approximately $400 million in potential revenue. Hyliion is targeting commercialization of its KARNO generators by the end of 2026. In the first quarter of 2026, Hyliion reported $2.8 million in revenue, a 460% increase year-over-year, and has provided full-year revenue guidance of around $10 million. The company's stock trades at a price-to-sales ratio of 235, with a GF Score of 51/100, indicating strong financial strength (8/10) but low profitability (1/10).