Arista revenue jumps 58.5 percent, beating its own guidance

Technology Tuesday, November 3, 2026 - Updated Nov 3, 2026 17:43

Arista Networks reported third quarter revenue of $3.66 billion, up 58.5 percent from a year earlier and above its guidance of $3.3 billion, and guided fourth quarter revenue to $3.9 billion to $4.0 billion.

Why it matters: Arista sells the networking layer inside AI data centers, and its fastest revenue growth since its initial public offering is a second supplier result on the same day pointing to AI buildout spending still rising.

Data as of Arista Networks 8-K filed November 3, 2026, accession 0001596532-26-000252, and its Exhibit 99.1 results release, read in full in this run. Developing item.

Arista Networks reported revenue of $3.66 billion for the third quarter ended September 30, 2026, up 58.5 percent from $2.31 billion a year earlier and 20.5 percent from the second quarter, with net income of $1.56 billion and diluted earnings of $1.22 per share on a GAAP basis and $1.20 on a non-GAAP basis. The company said the growth rate was its highest since its initial public offering, with a GAAP operating margin of 44.9 percent.

For the fourth quarter Arista expects revenue of $3.9 billion to $4.0 billion, a non-GAAP operating margin of 48 to 49 percent, and non-GAAP diluted earnings of $1.26 to $1.30 per share.

Sources

Arista Networks, Inc. Form 8-K, filed November 3, 2026 (accession 0001596532-26-000252) - SEC EDGAR - 2026-11-03
Arista Networks, Inc. Reports Third Quarter 2026 Financial Results - Arista Networks, Inc., via Business Wire (Exhibit 99.1 to the 8-K) - 2026-11-03