Arista Networks, US0404132054

Arista Networks stock holds AI momentum after record Q3

Published on 11/12/2026 at 15:50 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Arista Networks stock remains supported by record third-quarter growth and stronger AI demand. Management raised its fourth-quarter revenue outlook.

Record growth raises execution demands

Arista reported third-quarter revenue growth of 58.5 percent and record profitability.
Management expects fourth-quarter revenue of 3.9 billion to 4.0 billion US dollars.
AI networking remains central as the company expands its rack-scale architecture portfolio.

Arista Networks, US0404132054, Illustration mit AI erstellt.

Arista Networks reported record third-quarter results on Tuesday, November 3, 2026, as demand for artificial-intelligence and enterprise networking accelerated. The company's official release said revenue reached 3.66 billion US dollars for the quarter ended September 30, up 58.5 percent from the year-earlier period and 20.5 percent from the second quarter.

Arista Networks stock traded at 178.40 euros on Lang & Schwarz at 15:39 CET on Thursday, November 12, 2026. The quote was 178.40 euros versus 176.44 euros in the latest report published at 13:13 CET the same day, a 1.11 percent change.

AI demand supports higher targets

According to Arista Networks' financial release, GAAP operating margin was 44.9 percent and non-GAAP operating margin reached 49.1 percent. Diluted earnings per share came to 1.22 US dollars on a GAAP basis and 1.20 US dollars on a non-GAAP basis.

For the fourth quarter, management expects revenue of 3.9 billion to 4.0 billion US dollars, a non-GAAP operating margin of 48 percent to 49 percent and non-GAAP diluted earnings per share of 1.26 US dollars to 1.30 US dollars. The adjusted outlook excludes stock-based compensation, intangible-asset amortization and certain tax effects, so it is not directly interchangeable with GAAP earnings.

AI infrastructure sets the next test

Arista also announced open Ethernet rack-scale architectures for scale-up and scale-out AI fabrics with AMD, Arm, Broadcom, d-Matrix, Meta, Microsoft and Qualcomm. Its liquid-cooled Etherlink SU-144 architecture is designed to support up to 144 accelerators per rack and scale to 1,024 XPUs through cross-rack topologies.

The stronger targets raise the execution bar for the final quarter. Supply constraints, limited component sources, inventory management, reliance on merchant silicon and customer concentration remain among the risks identified in the company's release.