New York, Feb 14, 2026, 10:48 a.m. ET — The market is closed.
- Arista jumped 4.8% Friday after reporting its Q4 numbers and sharing revenue guidance for the first quarter.
- Arista Networks pointed to gains in AI networking and campus segments, though margins slipped compared to last quarter.
- Focus shifts to how companies deliver on Q1 targets, with the coming filings expected to shed more light on demand trends and customer profiles.
Arista Networks closed out Friday climbing 4.8% to $141.59, wrapping up a choppy week for AI-infrastructure stocks as investors shuffled bets on which earnings stories would hold up.
Arista’s fourth-quarter numbers hit late Thursday, alongside a revised forecast from management that’s now pushing investors to focus on the pace of AI data center construction by major clients — and the implications for network budgets looking into 2026.
Arista turned in fourth-quarter revenue of $2.488 billion, climbing 28.9% on the year, with non-GAAP earnings landing at $0.82 per share, the company said in its release.
Chief Executive Jayshree Ullal called 2025 “the year of validation of our Arista 2.0 momentum,” citing cumulative shipments of 150 million ports along with gains in AI networking and campus. Arista Networks
“Strong operating leverage,” is how Chief Financial Officer Chantelle Breithaupt put it this quarter, citing a non-GAAP operating margin of 47.5%. Net income crossed $1 billion for the quarter—a mark she described as “historic.” Arista Networks
Arista is projecting first-quarter revenue at around $2.6 billion, topping the analyst consensus referenced by Investing.com. The company also sees non-GAAP gross margin landing between 62% and 63%, and expects a non-GAAP operating margin near 46%.
The earnings release wasn’t just about numbers—Arista Networks highlighted fresh products aimed at data center and AI expansions. The company rolled out its R4 series platforms for AI and data center networking, along with upgrades to its network-operations software.
Arista’s numbers arrived with investors still hashing out if AI spending will spill over from the big hyperscalers—and if networking vendors can keep up momentum as rivals muscle in on those dollars. Cisco popped up on traders’ radars this week as rotation linked to AI disruption played out.
Still, risks linger. Arista’s gross margin slipped quarter over quarter, and its guidance banks on steady demand for premium switching gear—a market that could wobble fast if cloud or enterprise clients cut back, tweak their setups, or push for better deals.
Investors are now zeroed in on whether Arista manages to meet its Q1 revenue goals and maintain margins as AI deployment ramps up. The company’s annual 10-K filing is also coming into focus; it’ll offer a closer look at clients, risks, and cash flow. For large accelerated filers with a December 31 year-end, the 60-day window puts the Form 10-K deadline at March 2, 2026.
