TLDR
- Arista Networks delivered Q1 2026 revenue of $2.71 billion, marking a 35% year-over-year increase and surpassing the $2.61 billion analyst forecast
- Adjusted earnings per share reached $0.87, climbing from $0.66 in the prior-year period
- Shares plummeted nearly 14% in extended trading despite exceeding estimates, driven by margin contraction and full-year outlook worries
- Second-quarter forecast of $2.8 billion in revenue and $0.88 EPS beat Street expectations, yet full-year growth projection of 27.7% fell short of the 28–30% analyst targets
- Morgan Stanley maintained its Overweight stance, describing ANET as “one of the cleanest ways to own the AI networking cycle”
Arista Networks delivered impressive first-quarter results, yet investors responded with a swift retreat. Shares tumbled nearly 14% during after-hours trading Tuesday, sliding below $148 from a regular-session close of $170.22, which had already declined 1.4%.
The sharp decline occurred despite Arista handily exceeding Wall Street benchmarks on both top and bottom lines. First-quarter revenue reached $2.71 billion, crushing the $2.61 billion Street forecast. Adjusted earnings per share of $0.87 significantly outpaced the previous year’s $0.66. Billings growth jumped to 54% on a yearly basis, accelerating from the preceding quarter’s 43%.
Looking ahead to Q2, Arista projected approximately $2.8 billion in revenue with adjusted EPS of $0.88 — figures that exceeded analyst predictions. What triggered the selloff?
The culprit was margin deterioration. Arista forecast an adjusted operating margin between 46% and 47% for the second quarter, sliding from Q1’s 47.8% and trailing the 48.8% recorded in the year-ago quarter. This compression raised red flags.
The more significant worry centered on annual guidance. While Arista elevated its 2026 revenue growth forecast to 27.7% from a previous 25% projection, Morgan Stanley analyst Meta Marshall highlighted that the Street had anticipated growth ranging from 28% to 30%, and this shortfall triggered the retreat.
New Products in Focus
On the innovation front, Arista unveiled XPO high-density liquid-cooled pluggable optics, engineered specifically for next-generation AI data centers. According to the company, XPO reduces networking rack space requirements by up to 75% while delivering up to 44% floor space savings compared to conventional pluggable optics.
Arista also rolled out what it describes as a “universal AI spine” anchored by its 7800 platform. This system is engineered to accommodate massive AI workloads, incorporating capabilities like Virtual Output Queuing to eliminate congestion during AI traffic surges.
Chief Executive Jayshree Ullal highlighted the company’s Net Promoter Score of 89, with 94% of customers providing positive ratings, as validation of robust operational performance.
Wall Street Still Bullish
Despite the post-earnings tumble, Wall Street sentiment remains predominantly constructive. Morgan Stanley’s Marshall upheld his Overweight rating, characterizing Arista as among the premier vehicles for capturing AI networking growth. While acknowledging supply chain headwinds, he emphasized that Arista has consistently navigated these obstacles more effectively than competitors.
Additional firms preserved Buy or Strong Buy recommendations, with multiple analysts lifting price targets following the quarterly release.
Evercore ISI analysts had previously identified Arista as a primary beneficiary of Alphabet’s emerging Virgo Network before earnings, observing that Virgo’s design closely matches Arista’s high-radix, high-bandwidth switching solutions.
Even accounting for Tuesday’s decline, ANET had surged nearly 30% year-to-date and more than 87% over the trailing twelve months entering the earnings announcement.
Marshall’s research note encapsulated the situation succinctly: the conversation surrounding Arista has shifted away from demand questions — it now revolves around the company’s ability to secure adequate supply.
