ANET · 8-K · 20261103PR000252
Operating Income and Margins
Arista Networks, Inc. · 2026-11-03 · Importance 61 · Surprise 38 · No source text
Third-quarter GAAP income from operations increased to $1,642.4 million from $978.2 million year over year. GAAP operating margin expanded to 44.9% from 42.4%, while non-GAAP operating margin rose to 49.1% from 48.6%. The margin improvement occurred as revenue grew 58.5% and operating expenses grew 33.5%.
Key facts
- Q3 2026 GAAP operating income was $1,642.4 million and operating margin was 44.9%, compared with $978.2 million and 42.4% in Q3 2025. source
- Q3 2026 non-GAAP operating income was $1,795.8 million and operating margin was 49.1%, compared with $1,121.9 million and 48.6% in Q3 2025. source
- For the nine months ended September 30, 2026, GAAP operating income was $4,178.2 million, compared with $2,823.2 million in 2025. source
Impact estimates
| metric | direction | stage | expected | basis |
|---|---|---|---|---|
| operating_income | positive | realized | +44.6% | For the nine months ended September 30, 2026, GAAP operating income was $4,178.2 million, compared with $2,823.2 million in 2025. |
| operating_income | positive | realized | +21.9% | Q3 2026 GAAP operating income was $1,642.4 million and operating margin was 44.9%, compared with $978.2 million and 42.4% in Q3 2025. |
| margin | positive | realized | +2.5% | Q3 2026 GAAP operating income was $1,642.4 million and operating margin was 44.9%, compared with $978.2 million and 42.4% in Q3 2025. |
| margin | positive | realized | +0.5% | Q3 2026 non-GAAP operating income was $1,795.8 million and operating margin was 49.1%, compared with $1,121.9 million and 48.6% in Q3 2025. |