Ambarella Earnings Call Shows AI-Fueled Growth Momentum
Ambarella Inc. ((AMBA)) has held its Q4 earnings call. Read on for the main highlights of the call.
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Ambarella’s latest earnings call struck an upbeat tone, as management balanced record financial performance with candid discussion of emerging risks. Executives highlighted surging revenue, a powerful ramp in its HAI “physical AI” portfolio, and a return to non‑GAAP profitability, while acknowledging gross margin pressure, rising operating costs, and notable customer concentration exposure.
Record Revenue Underscores Growth Outperformance
Ambarella posted fiscal 2026 revenue of $390.7 million, a 37.2% year‑over‑year jump that set a new company record. Management stressed that this growth rate materially exceeded the broader semiconductor industry, underscoring the strength of its niche in AI‑enabled video and edge processing.
Physical AI Becomes the Core Revenue Engine
HAI, or physical AI, has become the company’s growth engine, generating roughly 80% of full‑year fiscal 2026 revenue and expanding nearly 50% year over year. Ambarella reported an installed base of 42 million HAI SoCs, more than 370 unique customers with AI products in production, and approximately $1 billion of cumulative HAI revenue.
Next‑Gen SoCs Begin to Ramp
The third‑generation 5nm CV75 and CV72 AI SoCs reached a high single‑digit percentage of total revenue in the fourth quarter, with management calling them key contributors to future growth. The CV7, Ambarella’s first 4nm device, has taped out and is slated to begin contributing revenue late in the fiscal year, positioning the portfolio for continued performance gains.
Non‑GAAP Profitability and Strong Cash Generation Return
The company returned to full‑year non‑GAAP profitability in fiscal 2026 and delivered about $58 million of free cash flow, roughly 14.8%–15% of revenue. Ambarella closed the year with $312.6 million in cash and marketable securities, up from $250.3 million, highlighting a strengthened balance sheet.
Broad Customer Wins Across Key End Markets
Management highlighted a series of design wins spanning robotics, enterprise video conferencing, security, and automotive, with brands including Insta360, QSC, IDIS, Dallmeier, i‑PRO, Ford, Thinkware, and Garmin. These wins suggest Ambarella’s SoCs are gaining traction across multiple verticals, reinforcing the scalability of its AI video platform.
Constructive FY2027 Growth and Margin Outlook
For fiscal 2027, Ambarella guided revenue growth of 10%–15% and expects non‑GAAP gross margin to stay within the 59%–62% long‑term target range. Management expressed confidence that the product roadmap, including 5nm and 4nm ramps, will support both growth and profitability despite a mixed macro backdrop.
Technology Roadmap Extends AI Performance Lead
The company emphasized technology leadership, noting tape‑outs of its first 4nm and first 2nm gate‑all‑around AI SoCs. Ambarella now offers 12 HAI SoCs supporting models up to 34 billion parameters, with a roadmap to handle up to 100 billion parameters and shipments exceeding 25 million units across more than 15 SoCs.
Long Record of Free Cash Flow Intact
Fiscal 2026 marked Ambarella’s seventeenth consecutive year of positive free cash flow, a notable feat for a growth‑oriented semiconductor firm. This consistency in cash generation gives the company flexibility to fund R&D, navigate cycles, and pursue strategic initiatives without relying heavily on external capital.
Gross Margin Compression Emerges as a Watch Point
Despite the strong top line, non‑GAAP gross margin slipped to 60.7% for the year from 62.7% in fiscal 2025, a decline of roughly two percentage points. Fourth‑quarter non‑GAAP gross margin came in at 59.8%, signaling some ongoing pressure even as the company maintains margins within its model.
Rising Operating Expenses Temper Leverage
Non‑GAAP operating expenses rose 12.9% year over year, driven mainly by higher employee‑related costs and increased SoC development spending. While management framed these investments as critical to sustaining technology leadership, they also acknowledged that higher opex could weigh on near‑term operating leverage.
Seasonal Q4 Softness Masks Strong Year‑Over‑Year Growth
Fourth‑quarter revenue of $100.9 million fell 7% sequentially on normal seasonality, but still rose 20.1% versus the prior‑year quarter. Looking ahead, management expects IoT revenue to be seasonally lower in the first quarter, while automotive revenue should increase, partially offsetting the typical Q1 slowdown.
Inventory Build Signals Support for Future Demand
Days of inventory increased from 76 to 99 days, reflecting a deliberate build to support anticipated business levels. While this ties up more working capital, management suggested the move positions Ambarella to respond to customer demand and avoid supply constraints as new products ramp.
High Channel Concentration Remains a Key Risk
WT Microelectronics, a fulfillment partner, accounted for 73.1% of fourth‑quarter revenue and 69.7% of full‑year revenue, highlighting substantial channel concentration. Management acknowledged this risk, implying that any disruption or change in this relationship could significantly affect reported revenue.
New Business Models Still in Early, Uncertain Stages
Ambarella is experimenting with semi‑custom and custom ASIC engagements, as well as building an indirect channel model, but these efforts are still nascent. Executives refrained from detailing profit and loss implications, noting that potential margin and revenue impacts remain uncertain until the initiatives mature.
Monitoring Macro and Component Cost Headwinds
Customers are facing higher component prices, such as DRAM cost increases, which may indirectly pressure lower‑margin products that incorporate Ambarella’s chips. Management said direct effects have been limited so far but indicated they are closely watching for any downstream impact on pricing or demand.
Guidance Points to Steady Growth and Product Ramps
For the first quarter, Ambarella forecast revenue of $97 million–$103 million, with the midpoint at $100 million, non‑GAAP gross margin of 59%–60.5%, and non‑GAAP operating expense of $55 million–$58 million. Auto revenue is expected to rise sequentially as IoT declines seasonally, while CV72 and CV75 should add incremental sales and the 4nm CV7 is slated to start contributing in the fourth quarter, with fiscal 2027 growth driven by both higher units and ASPs.
Ambarella’s call painted a picture of a company executing well on a focused AI video strategy, with record revenue, expanding HAI penetration, and sustained cash generation. Investors will be watching whether management can convert its aggressive roadmap into continued double‑digit growth while stabilizing margins, managing channel concentration, and navigating component cost and macro uncertainties.
