Arista Networks reported third quarter 2026 results that substantially outperformed consensus expectations, headlined by record year-over-year revenue growth of 58.5%. The company continues to capitalize on the transition to Ethernet-based AI networking, driving record profitability and prompting strong forward guidance.

Key Highlights

  • Total revenue reached $3.66 billion, a 58.5% YoY increase, representing the company's highest growth rate since its IPO.
  • Non-GAAP operating margin expanded to 49.1%, up from 48.6% in the prior-year period, as the company scaled to meet generative AI infrastructure demand.
  • Fourth quarter 2026 guidance projects revenue between $3.9 billion and $4.0 billion, suggesting continued sequential momentum of approximately 8% at the midpoint.