Arista Networks — Third Quarter 2026 Earnings Summary

Arista Networks reported third-quarter 2026 total revenues of approximately $3.66 billion, representing a 58.5% year-over-year increase and exceeding its guidance. The company achieved record profitability with GAAP and non-GAAP operating margins of 44.9% and 49.1%, respectively, while adding diluted earnings per share of $1.22 on a GAAP basis. During the quarter, Arista launched open standards-based rack-scale architectures for AI networks in partnership with major technology firms and was added to the S&P 100 index. Looking ahead to the fourth quarter of 2026, the company forecasts revenue between $3.9 billion and $4.0 billion with a non-GAAP operating margin of 48% to 49%.