Amprius Q1 Revenue Record But Cash Burn Clouds Raised Outlook

What happened

Amprius reported record Q1 2026 revenue of $28.5M, up 153% YoY, and raised its full-year revenue outlook to at least $130M, citing strong demand from UAS, LEV, and defense. However, the company burned $37.3M in operating cash, leaving just $62.6M cash, and GAAP gross margin of 20% was boosted by $0.5M non-recurring items, raising sustainability questions. The market reacted by slashing the stock over 27% on the print due to weak EPS guidance, highlighting the tension between top-line growth and bottom-line optics. The DeepValue report maintained its WAIT rating, warning that Q2'26 must sustain gross margin and materially reduce operating cash outflow to avoid dilution risk. The raised guidance adds pressure to deliver on cash conversion, making next quarter's results critical to validate the scale narrative.

Implication

The Q1 print confirms strong revenue momentum but fails to resolve the cash-burn dilemma. Investors should remain sidelined until Q2'26 data: a repeat of GAAP gross margin above 15% and operating cash outflow below $15M would support a bull case toward $26. Conversely, a margin reversal or continued heavy cash burn would deepen the bear case toward $10. The raised revenue target raises expectations but offers no buffer if execution falters.

Thesis delta

The Q1 report and raised outlook increase the probability of the base case ($18) but do not substantiate a bullish re-rating yet. The primary risk—cash sustainability—remains unresolved, and the stock's sharp post-earnings drop reflects that. A positive thesis shift requires Q2'26 metrics to show that Q1's margin and cash burn were not anomalies. Until then, the WAIT rating stands with a neutral bias.