Arista Networks, Inc.

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Arista Networks, Inc. stock analysis ANET overview
Bullish +75

Arista Earnings: Take the Opportunity to Buy After a Lighter Beat-and-Raise Than Usual

📉 Arista Networks (ANET) shares dropped 13% after hours following a quarter that beat guidance but missed stronger investor "bogeys."

💰 First-quarter revenue rose 35% year over year, exceeding the company's own guidance despite conservative forecasting habits.

🚀 Second-quarter guidance implies 29% year-over-year growth, indicating sustained robust demand driven by AI infrastructure spending.

⚠️ Management highlighted significant supply constraints with lead times extending to 52 weeks for production equipment.

🤖 The majority of the full-year outlook raise comes from AI-related sales, which are expected to grow faster than non-AI segments.

📈 Analysts raised their fair value estimate for Arista to $190 per share from a previous estimate of $175.

👀 Management's 2026 revenue guidance was increased to $11.5 billion, up from the prior guide of $11.25 billion.

🧠 AI-specific sales guidance for 2026 was raised to $3.5 billion from a previous estimate of $3.25 billion.

🔭 Forecasts project 30% revenue growth in 2026, tapering to 25% in 2027 and 20% in 2028.

📊 Non-GAAP operating margins are expected to expand modestly to 49% by 2028 from 48% in 2025.

💡 Long-term growth trends remain highly positive despite potential quarterly lumpsiness in AI sales volume.

🛑 The aftermarket selloff is viewed as a buying opportunity given the company's wide moat and strong fundamentals.

⏳ Supply constraints are expected to persist, likely prolonging the period of immense shipment growth for the company.

📝 This analysis was originally published by Morningstar Equity Research, who hold no shares in Arista Networks.

Bullish Signals
  • Arista Networks' first-quarter revenue and operating margin exceeded guidance, demonstrating strong execution.
  • Management raised its full-year outlook for total revenue and artificial intelligence (AI) revenue, signaling confidence in future growth.
  • First-quarter revenue surged 35% year-over-year, driven by robust demand from AI infrastructure spending.
  • Second-quarter guidance implies continued 29% year-on-year growth, sustaining a high-growth trajectory.
  • The company expects supply to undershoot demand for the foreseeable future, extending the period of immense shipment growth.
  • Arista raised its 2026 sales guide to $11.5 billion and AI sales guide to $3.5 billion, both driven by artificial intelligence.
  • Management's guidance is viewed as conservative, with analyst models forecasting above-sell-side-consensus revenue.
  • The firm forecasts a mid-teens growth rate following a high-growth period in 2026-2028.
  • Non-GAAP operating margins are expected to expand modestly to 49% by 2028 from 48% in 2025.
  • Morningstar raised its fair value estimate to $190 per share, viewing the stock as attractive after the post-earnings selloff.
Risk Factors
  • Shares dropped 13% after hours despite beating revenue and margin expectations, indicating significant investor dissatisfaction with the lighter-than-usual beat-and-raise.
  • Full-year guidance missed even stronger buy-side investor "bogeys," suggesting institutional investors were far more optimistic than management's cautious outlook.
  • Arista notes lead times have reached 52 weeks due to supply constraints, which limits its ability to fully capture demand and could delay revenue recognition.
  • Management views the raised full-year AI sales guide of $3.5 billion as conservative, with analysts modeling it up by $200 million, implying significant potential upside or unrecorded demand risk.
  • While supply constraints drive current growth, the expectation that demand will continue to undersupply for the foreseeable future could lead to long-term profitability headwinds if constraints persist beyond short-term shipment growth.
Full Analysis
Arista Networks (ANET) reported first-quarter financial results that exceeded its own guidance, leading to a subsequent sell-off of 13% in the stock price after hours. While revenue rose 35% year over year and operating margins remained strong, the market reaction appears driven by missing external analyst expectations for even higher growth. Management raised its full-year outlook for both total revenue and artificial intelligence-specific revenue, though these figures still fell below the stronger consensus estimates that had built up recently. Key drivers for this positive earnings surprise include robust demand in AI infrastructure, which continues to fuel networking requirements for data centers. Despite this demand, Arista noted significant supply chain constraints with lead times extending to 52 weeks. The company believes supply will continue to fall short of demand for the foreseeable future, which supports a prolonged period of high shipment volumes and revenue growth beyond the current quarter. The analyst from Morningstar who authored this note maintains that the stock is fairly valued but recommends buying on dips following the post-earnings volatility. Consequently, they raised their fair value estimate to $190 per share from $175, anticipating stronger-than-modeled high-speed data center revenue growth over the next three years. They specifically forecast 30% revenue growth in 2026, exceeding management’s new guidance of $11.5 billion for total sales and $3.5 billion for AI sales alone. Looking further ahead, the analyst projects continued double-digit growth in 2027 at 25% and slowing to 20% in 2028 before moderating to mid-teens rates in subsequent years. Alongside this revenue trajectory, they expect non-GAAP operating margins to expand modestly to 49% by 2028. The core thesis remains that Arista's fundamentals are excellent and the current price decline after a conservative guidance increase presents an attractive entry point for long-term investors focused on AI infrastructure trends.