Arista's record quarter shows network central to AI

Arista's record quarter

Arista Networks reported third-quarter revenue of $3.66 billion, up 58.5% year over year and 20.5% sequentially.

Strong financial performance

Adjusted non-GAAP earnings per share were $1.20, gross margin 64%, operating margin 49.1%, and cash totaled $14.4 billion with no debt.

Full-year guidance raised

Management raised full-year 2026 guidance to about $13.3 billion, representing 48% growth, with fourth-quarter revenue expected between $3.9 billion and $4 billion.

2027 outlook

Arista called for 38% to 40% growth to about $18.5 billion in 2027, with AI networking expected to double from $3.5 billion to $7 billion.

Network as AI performance driver

Chief Executive Jayshree Ullal stated the industry is shifting from compute-centric to network-centric approaches for optimal token efficiency.

“We believe the industry is shifting from a compute-centric vertical stack to a holistic network-centric approach”

Accelerator diversity advantage

Arista has more than 100 Etherlink customers and expects over 10 gigawatts of deployment across 10+ accelerator types by 2027.

Scale-across demand

Scale-across accounted for about 30% of AI demand this year and should rise in 2027, requiring deep buffers and high reliability.

Scale-up innovation

Arista showcased rack-scale Ethernet designs at OCP with trials in 2027 and production in 2028, moving from proprietary links to ESUN.

Security integration

Arista integrates AI-driven vulnerability discovery through Project Glasswing with Anthropic, Google, and OpenAI.

Investor concerns addressed

CFO Chantelle Breithaupt noted deferred revenue stayed flat despite 58.5% growth, with year-end balance expected higher than last year.

Market position

Arista is well positioned to capture growing share of AI spending as networking becomes critical for token efficiency and accelerator utilization.