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Investors are watching Arista Networks (NYSE: ANET | ANET Price Prediction) ahead of its first-quarter 2026 results, which are expected to be released tonight at 4:05 PM EST. With shares up 31.74% year to date, the bar is pretty high.
Arista 2.0 Meets a Margin Reset
Arista’s fourth-quarter revenue of $2.49 billion grew 28.9% year over year and topped consensus by 4.41%, while non-GAAP EPS came in at $0.82 against a $0.69 estimate. Net income crossed $1 billion in a quarter for the first time.
CEO Jayshree Ullal framed the year as a turning point, saying, “2025 was the year of validation of our Arista 2.0 momentum, as we hit the milestone of shipping a cumulative of 150 million ports.” Full-year revenue landed at $9.01 billion, up 28.6%, with $1.60 billion returned via buybacks.
The catch sits in the company’s guidance. Management pointed for Q1 revenue to come in at roughly $2.60 billion with non-GAAP gross margin of 62% to 63%, a step down from Q3 2025’s 65.2%. Operating margin guidance of about 46% signals scale costs from AI and campus pushes are showing up.
Consensus and Comparables
| Metric |
Q1 2026 Reference |
Q1 2025 Actual |
YoY Implied Growth |
| Revenue (mgmt guide) |
~$2.60B |
$2.00B |
~30% |
| Non-GAAP EPS (Q1 2025 base) |
n/a in data |
0.65 |
n/a |
| FY2025 Revenue |
$9.01B |
| FY2025 EPS |
2.98 |
Margins, AI Orders, and a New Leadership Bench
I’ll be watching three things tonight. First, gross margin. The 62%-63% guide is the cleanest tell on whether the AI mix shift and supply costs are containable or whether compression deepens through 2026.
Second, AI networking commentary from hyperscale customers. Long-range forecasts cited by analysts peg 35% AI revenue CAGR through 2029, and Arista’s R4 series and Cluster Load Balancing for AI workloads are central to that thesis. It will be interesting to look for new customer wins beyond the existing concentrated base, as well as updates on the open-standards ESUN initiative.
Third, the new executive bench. Todd Nightingale stepped in as President and COO, with Kenneth Duda as President and CTO, and Tyson Lamoreaux running Cloud and AI Networking. Their first joint earnings call sets the tone for execution. The VeloCloud SD-WAN integration, picked up from Broadcom, should also get airtime, alongside campus expansion and Make in India manufacturing.
Risk callouts to track: tariffs, China export restrictions, and customer concentration. Analysts have flagged valuation as stretched after the run, so any softness on Q2 framing could matter more than the Q1 numbers themselves.
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