ANET · 8-K · 20261103PR000252
Operating Expense Trends
Arista Networks, Inc. · 2026-11-03 · Importance 57 · Surprise 38 · From source text
Third-quarter operating expenses increased 33.5% year over year to $683.3 million from $512.0 million, below revenue growth of 58.5%. Research and development expense rose 49.4% to $486.9 million from $326.0 million. Sales and marketing increased 3.6% to $156.6 million, and general and administrative expense increased 14.4% to $39.8 million.
Key facts
- For the nine months ended September 30, 2026, operating expenses totaled $1,734.6 million, compared with $1,381.7 million in 2025. source
- Q3 2026 operating expenses totaled $683.3 million: $486.9 million research and development, $156.6 million sales and marketing, and $39.8 million general and administrative. source
Impact estimates
| metric | direction | stage | expected | basis |
|---|---|---|---|---|
| operating_income | negative | realized | -11.6% | For the nine months ended September 30, 2026, operating expenses totaled $1,734.6 million, compared with $1,381.7 million in 2025. |