Astera Labs Plunges 31% After Q4 Margins Drop and R&D Spend Increases
Astera Labs’ shares plunged 30.8% after Q4 2025 non-GAAP gross margin fell 70 basis points to 75.7% and non-GAAP operating margin dropped 150 basis points to 40.2% due to a $16 million R&D expansion. The company forecasts Q1 2026 revenue of $286 million–$297 million with EPS of $0.53–$0.54.
1. Q4 Results and Margin Pressure
Astera Labs reported a sequential 70 bp drop in non-GAAP gross margin to 75.7% and a 150 bp decline in non-GAAP operating margin to 40.2%, driven by a $16 million increase in R&D expenses related to organizational expansion and the aiXscale acquisition.
2. Q1 Guidance
For the first quarter of 2026, the company forecasts revenue of $286 million to $297 million and earnings per share of $0.53 to $0.54, implying a year-over-year EPS increase of 57.6%.
3. Product Portfolio Expansion
The rollout of the Scorpio X-Series AI fabric switches and custom NVLink Fusion connectivity solutions, along with Aries and Taurus signal-conditioning products, underpins management’s forecast of a more than 10-fold expansion in the addressable market to $25 billion over the next five years.
4. Competitive Landscape and Valuation
Despite strong demand, Astera Labs faces competition from Broadcom, Marvell Technology, and Credo in the PCIe retimers market, while trading at a forward 12-month price/sales multiple of 17.7× versus the sector’s 6.5×, signalling a premium valuation.