Arista Networks Inc Earnings - Q3 2025 Analysis & Highlights

Arista Networks' Q3 2025 earnings call highlighted record growth driven by AI, strong financial performance, and a positive outlook for 2026, with key discussions on AI and cloud opportunities, campus expansion, and strategic partnerships.

Key Financial Results

  • Q3 2025 revenue reached almost $2.31 billion.
  • Software and services contributed approximately 18.7% of revenue.
  • Non-GAAP gross margin was 65.2%, influenced by favorable mix and inventory benefits.
  • Americas accounted for almost 80% of revenue, while international contributed approximately 20%.
  • Operating income for the quarter was $1.12 billion, landing at 48.6% of revenue.
  • Net income for the quarter was $962.3 million, or 41.7% of revenue.
  • Diluted earnings per share for the quarter was $0.75, up 25% from the prior year.
  • Cash, cash equivalents, and investments ended the quarter at $10.1 billion.
  • Business Segment Results

  • Strong growth across all product sectors supported the revenue.
  • The year-over-year gross margin improvement was primarily driven by strength in the enterprise segment.
  • Capital Allocation

  • Of the $1.5 billion repurchase program approved in May 2025, $1.4 billion remained available for repurchase in future quarters.
  • Capital expenditures for the quarter were $30.1 million.
  • Industry Trends and Dynamics

  • Arista is experiencing a golden era in networking, with an increasing TAM now of over $100 billion in forthcoming years.
  • The company is experiencing momentum across cloud and AI titans, neocloud providers, and the campus enterprise.
  • The demanding scale of AI build-out is clearly unprecedented as we look to move data faster across multi-planar networks.
  • AI models and tokens are growing in size and complexity, driving network scale of AI XPUs.
  • Competitive Landscape

  • Arista interoperates with NVIDIA and is creating an open ecosystem, including AMD, Anthropic, Arm, Broadcom, OpenAI, Pure Storage, and VAST Data.
  • Arista clarifies its role in white box, co-existing with commodity solutions for simple use cases while offering superior Arista blue boxes and branded EOS platforms.
  • Macroeconomic Environment

  • Guidance includes possible known tariff scenarios.
  • Growth Opportunities and Strategies

  • Arista is focused on networking for AI and AI for networking, with momentum across data-driven network platforms.
  • The company's stated goal of $1.5 billion AI aggregate for 2025 is well underway.
  • Arista is committed to $2.75 billion out of its new target of $10.65 billion in revenue, representing 20% revenue growth in 2026.
  • Arista unveiled its first Ethernet for Scale-Up Networks (ESUN) specification, along with industry experts.
  • Arista is collaborating with Oracle Acceleron, building upon a decade of partnership, for AI networks.
  • Arista is addressing multiple facets of cloud and AI innovation at a systemwide level, converging silicon, hardware, software, cables, optics, and racks as an overall platform.
  • Arista AVA (Autonomous Virtual Assist) uses AI to help customers design, build, and operate their networks.
  • Arista is focused on centers of data strategy ranging from client to branch to campus to data and now cloud and AI centers.
  • Financial Guidance and Outlook

  • Q4 2025 Revenue: $2.3 billion to $2.4 billion.
  • Q4 2025 Gross Margin: 62% to 63%, inclusive of possible known tariff scenarios.
  • Q4 2025 Operating Margin: Approximately 47% to 48%.
  • Q4 2025 Effective Tax Rate: Approximately 21.5%.
  • Q4 2025 Diluted Shares: Approximately 1.281 billion.
  • FY 2025 Revenue Growth: Approximately 26% to 27%, or $8.87 billion at the midpoint.
  • FY 2025 Campus Segment: Between $750 million and $800 million.
  • FY 2025 AI Center Target: At least $1.5 billion.
  • FY 2025 Gross Margin: Approximately 64%, inclusive of possible known tariff scenarios.
  • FY 2025 Operating Margin: Roughly 48%.
  • FY 2026 Revenue Growth: Approximately 20%, now at a higher dollar amount of $10.65 billion, inclusive of both a campus target of $1.25 billion and an AI center target of $2.75 billion.
  • FY 2026 Gross Margin: A range is expected of approximately 62% to 64%, driven by customer mix.
  • FY 2026 Operating Margin: An outlook of approximately 43% to 45%, allowing for investments in relation to achieving the strategic goals of Arista.