Arista Q3 revenue rises 59% to $3.66 billion

Nov 3, 2026
Arista Networks reported third quarter revenue of $3.66 billion, up 58.5% from a year earlier and above its guidance of $3.3 billion.

Arista Networks reported in its earnings release third quarter revenue of $3.66 billion, up 58.5% from a year earlier and above its guidance of $3.3 billion. Revenue also increased 20.5% from the previous quarter.

GAAP operating margin rose to 44.9% from 42.4% a year earlier, while diluted earnings per share increased to $1.22 from $0.67. During the quarter, Arista introduced open Ethernet rack scale architectures for AI networks with AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft and Qualcomm.

Arista expects fourth quarter revenue of $3.9 billion to $4.0 billion. It forecasts an adjusted operating margin of 48% to 49% and adjusted diluted earnings per share of $1.26 to $1.30.

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