TLDR
- Arista Networks delivered Q1 2026 revenue of $2.71 billion, representing a 35% year-over-year increase and surpassing analyst estimates of $2.61 billion
- The company’s adjusted earnings per share reached $0.87, climbing from $0.66 in the same quarter last year
- Shares tumbled nearly 14% in extended trading despite beating expectations, driven by margin concerns and full-year outlook
- Q2 projections of $2.8 billion in revenue and $0.88 EPS exceeded consensus, yet full-year growth forecast of 27.7% fell short of the 28–30% analyst expectations
- Morgan Stanley maintained its Overweight rating, 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 selloff. Shares plummeted nearly 14% during after-hours trading Tuesday, sliding below $148 after the regular session ended at $170.22, already down 1.4%.
The sharp decline occurred despite Arista exceeding Wall Street’s expectations on both top and bottom lines. First-quarter revenue reached $2.71 billion, surpassing the consensus estimate of $2.61 billion. The company’s adjusted earnings per share of $0.87 eclipsed the prior year’s $0.66. Additionally, billings growth jumped to 54% year-over-year, a notable acceleration from the previous quarter’s 43%.
Looking ahead to Q2, Arista projected approximately $2.8 billion in revenue alongside $0.88 in adjusted earnings per share — figures that exceeded analyst forecasts. Yet the stock still tumbled. What triggered the negative response?
The culprit was margin compression. Arista forecasted an adjusted operating margin between 46% and 47% for the second quarter, representing a decline from Q1’s 47.8% and falling short of the 48.8% delivered in the comparable quarter last year. This contraction sparked investor concern.
The more significant worry centered on annual guidance. While Arista elevated its 2026 revenue growth projection to 27.7% from its previous 25% target, Morgan Stanley analyst Meta Marshall highlighted that Wall Street had anticipated growth between 28% and 30%. This shortfall fueled the post-earnings 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 as much as 75% while delivering up to 44% savings in floor space compared to conventional pluggable optics.
Arista also debuted what it describes as a “universal AI spine” built on its 7800 platform. This system is architected to manage large-scale AI workloads, incorporating features such as Virtual Output Queuing to eliminate bottlenecks during periods of intense AI traffic.
CEO Jayshree Ullal highlighted the company’s Net Promoter Score of 89, with 94% of customers providing positive ratings, as proof of the company’s strong operational performance.
Wall Street Still Bullish
Despite the after-hours decline, Wall Street sentiment toward Arista remains predominantly optimistic. Morgan Stanley’s Marshall reaffirmed his Overweight rating, characterizing Arista as among the most attractive opportunities for investors seeking exposure to AI networking demand. While acknowledging supply chain headwinds, Marshall noted that Arista has historically navigated these challenges more effectively than competitors.
Additional firms maintained Buy or Strong Buy recommendations, with several analysts lifting their price targets following the quarterly report.
Evercore ISI analysts had previously identified Arista as a key beneficiary of Alphabet’s new Virgo Network platform before earnings, observing that Virgo’s design closely matches Arista’s high-radix, high-bandwidth switching capabilities.
Despite Tuesday’s setback, ANET shares had gained nearly 30% year-to-date and surged more than 87% over the preceding 12 months entering the earnings announcement.
Marshall’s analysis captured the current investment thesis concisely: the conversation surrounding Arista has shifted away from demand questions — it’s now focused on the company’s ability to secure adequate supply.
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