Shares of Amprius Technologies (AMPX 1.77%) climbed on Thursday after the lithium-ion battery specialist reported impressive growth metrics.
By the close of trading, Amprius' stock price was up over 18%.
Amprius' high-performance silicon anode batteries. Image source: Amprius Technologies.
Electrifying growth
Amprius' revenue rocketed 137% higher year over year to $25.2 million in the fourth quarter.
"For Amprius, 2025 marked a year of meaningful commercial progress, as we expanded our customer base to over 550, increased revenue by over 3x, and advanced the adoption of our silicon anode batteries across multiple end markets," CEO Tom Stepien said. "Growing demand from existing customers, new program wins, and improved execution across our manufacturing partners drove strong momentum throughout the year."
NYSE: AMPX
Key Data Points
Better still, Amprius' profitability strengthened as it scaled its operations. Its gross margin improved to 24% from negative 21% in the prior-year quarter.
That helped the battery cell maker generate positive quarterly adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) for the first time, totaling $1.8 million. That's compared to an EBITDA loss of $4.8 million in the year-ago period.
An upbeat forecast for 2026
Looking ahead, Amprius sees full-year revenue rising by at least 70% to $125 million or more, with adjusted EBITDA of at least $4 million.
"In 2026, our team is energized to continue delivering what we believe is a meaningful step function in growth and profitability with a clean balance sheet and a scale-enabling cost structure," chief financial officer Ricardo Rodriguez said.
