Amprius Technologies Inc. (AMPX) reported its third-quarter fiscal 2026 results after Tuesday's closing bell, and the market wasted little time reacting. The battery maker delivered record revenue but a wider-than-expected loss, and investors sent shares lower in extended trading.

The Numbers Behind the Report

Amprius reported quarterly losses of two cents per share, which missed the analyst estimate for a loss of one cent, according to market data. Quarterly revenue came in at $39.15 million, which beat the Street estimate of $35.87 million.

CEO Tom Stepien framed the quarter as a validation of the company's technology and its commercial traction. "Our third quarter results demonstrate the strength of our company's technology leadership and our ability to convert growing customer demand into meaningful financial performance," he said.

"We delivered record revenue, as we continued to deepen our relationships with customers across the drone, aviation, defense, and advanced mobility markets," Stepien added.

Looking Ahead

Here's where things get interesting. Amprius expects fiscal 2026 EPS to be more than seven cents, versus the estimate for a loss of eight cents per share. It also guided revenue of $145 million, versus the $140.64 million analyst estimate. That's a swing from expected losses to projected profits, a forecast that will either look prescient or optimistic depending on how the next few quarters play out.

"As our guidance suggests, Amprius enters the fourth quarter with strong momentum, driven by an expanding pipeline, and increased manufacturing scale," Stepien said.

For now, the market is focused on the bottom line. According to market data, Amprius stock was down 9.38% to $8.31 in Tuesday's extended trading. The revenue beat and upbeat guidance weren't enough to offset the earnings miss, at least in the immediate after-hours session.