Strong Revenue Growth
Total revenue for Q4 2025 was $136.4M, up 8% sequentially and up 48% year-over-year (Q4 2024: $92.2M). For the full year 2025, revenue grew ~30% year-over-year.
Infrastructure Business Momentum
Infrastructure revenue approximately $47M in Q4 and grew ~76% YoY in Q4; company expects infrastructure to become the largest revenue contributor in 2026. Keystone PAM4 DSP is forecast to generate about $100M–$130M in 2026 with potential upside.
Product Ramps and Design Wins (Data Center & Storage)
Keystone PAM4 DSP ramping in major hyperscalers (400G/800G); Rushmore (next-gen PAM4/1.6T products) expected to start production revenue end of 2026. Panther storage accelerator sampling (Panther 5) and management expects accelerator revenue to at least double in 2026 vs 2025.
High Gross Margins and Improving Mix
Q4 GAAP gross margin ~57.6% and non-GAAP gross margin ~59.6%. Management cites improving product mix (infrastructure higher-margin) and multi-quarter margin improvement trend.
Profitability on Non-GAAP Basis and Cash Generation
Q4 non-GAAP operating income was ~16% of revenue; GAAP operating loss was (11)% (see lowlights for GAAP adjustments). Q4 net cash from operating activities was ~$10.4M and cash, cash equivalents and restricted cash at quarter end was ~$101.4M.
Share Repurchases and Board Confidence
Repurchased ~$20M of common stock in Q4 under a $75M authorization, signaling management/board confidence in cash flow and outlook.
Operational Improvements (Working Capital)
Days sales outstanding improved to ~31 days; inventory decreased by ~$8M QoQ and days of inventory improved to ~130 days despite long lead times in certain optical supply chains.
Q1 2026 Guidance and Visibility
Q1 2026 revenue guidance of $130M–$140M; Q1 GAAP gross margin expected 56%–59% and non-GAAP gross margin 58%–61%. Management reports robust bookings and backlog with improved visibility into early 2026 ramps.