HYLN Stock Soars To 17-Month High On KARNO Reactor Sales Optimism

• HYLN beat earnings expectations for four consecutive quarters. 
• Hyliion had nearly 750 KARNO Cores under non-binding LOIs as of end-March. 
• Analysts have a 12-month average target of $5 per share, marking a 47% upside from Tuesday’s close, as per Koyfin data.

Hyliion (HYLN) shares soared 27% on Wednesday as investors cheered the power generator’s recent contract wins, along with expectations of over $400 million worth of upcoming power contracts for its KARNO reactor. 

HYLN stock jumped to its highest since December 2024, a 17-month high, and recorded gains in eight out of the previous ten sessions. It is on track to record its best week in nearly 18 months. 

The company’s KARNO reactor is a stationary power generator that is expected to be deployed to run massive AI data centers and is also positioned to be deployed at military bases for power optimization.

The KARNO reactor, over the three months ending March, transitioned from development to commercial deployment. As of May 2026, Hyliion has successfully completed the UL certification non-recurring testing, which is a major regulatory milestone that allows the company to begin moving early adopter units—roughly 10 units planned for this year—directly to customer sites.

“We successfully passed the UL certification non-recurring test for the KARNO Power Module. This is the gating item we discussed last quarter, and clearing it now enables us to begin delivering early adopter units to customer sites,” said Thomas Healy, Chief Executive Officer, Hyliion Holdings. 

HYLN Q1 Earnings Highlights 

HYLN reported its Q1 2026 earnings on Tuesday, which surpassed both earnings and revenue forecasts. 

The company posted a loss of $0.07 per share against a forecast of a loss of $0.08. Revenue reached $2.8 million, significantly exceeding the $1.15 million forecast by 146.09%. 

The revenue stream was entirely derived from research and development services tied to the company's contracts with the Office of Naval Research (ONR), including the build of an 800-kilowatt KARNO system for an unmanned U.S. Navy vessel. 

“We are now in active discussions not only with the Navy and Air Force, but with additional branches of the U.S. military as well,” added Healy.

HYLN KARNO Commercial Pipeline

Hyliion, during the Jan-March quarter, signed a non-binding Letter of Intent (LOI) with VFG Holdings for up to 250 KARNO Cores (50 megawatts), which will be spread over five years and will be used for advanced data center applications.

As of the end of March 2026, Hyliion had nearly 750 KARNO Cores under non-binding LOIs, representing more than $400 million in potential revenue at current pricing.

The company expects to sign an additional $40 million to $50 million in military contracts in 2026, on top of the approximately $20 million in existing ONR contracts.

HYLN Retail View 

Retail sentiment on Stocktwits was “extremely bullish” with “extremely high” message volumes. 

One user highlighted that investors are piling onto HYLN stock as the power generation theme solidifies amid the AI boom. 

The stock has soared 80% over the past 12-months. 

Read More: PYPL Stock Eases Despite Partnering With Anthropic To Bring AI Services To Small Businesses

For updates and corrections, email newsroom[at]stocktwits[dot]com.