Arista Networks Soars 30%: Is It Still a Buy?
💡 Key Takeaway
Arista Networks' accelerating AI-driven growth and raised guidance make it a compelling buy despite the recent run-up.
What Happened: Arista's Record-Breaking First Half
Shares of Arista Networks surged nearly 30% in the first half of 2026, far outpacing the S&P 500's 10% gain. The rally was fueled by two consecutive quarterly reports that smashed expectations.
In February, Arista reported record Q4 revenue of $2.49 billion, up 29% year over year, with adjusted earnings per share of $0.82 rising 24%. The company also achieved its first quarter with over $1 billion in net income, thanks to a strong operating margin of 47.5%.
Management raised its 2026 revenue outlook to $11.25 billion, representing 25% growth. Just three months later, Q1 results accelerated further: revenue hit $2.7 billion, up 35% year over year, and adjusted EPS rose 32% to $0.87. Operating cash flow reached a record $1.69 billion.
CEO Jayshree Ullal revealed that AI-related sales are expected to more than double to $3.25 billion over the next year. The company also raised its full-year guidance again, now targeting $11.5 billion in revenue, or 28% growth, with operating margins between 46% and 47%.
Wall Street has taken notice: 97% of analysts rate Arista a buy or strong buy, with an average price target of $192, implying another 10% upside from current levels.
Why It Matters: AI Networking Leader on the Rise
Arista Networks is a critical player in the data center networking space, and its strong results show that AI infrastructure spending is accelerating. As cloud giants like Microsoft and Meta expand their AI capabilities, they need faster, more efficient networks—Arista's specialty.
The company's ability to raise guidance twice in six months signals robust demand that isn't slowing down. With AI-related sales expected to double, Arista is positioned to capture a growing share of the AI networking market, which is still in its early stages.
Moreover, Arista's high operating margins (above 46%) indicate pricing power and operational efficiency. This combination of growth and profitability is rare and often rewarded by the market with premium valuations.
For investors, the key question is whether the stock can sustain its momentum. With a forward P/E around 35 based on raised guidance, it's not cheap, but the growth trajectory justifies the premium. If Arista adds new 10%+ customers as CEO Ullal hinted, the upside could be significant.
Source: The Motley Fool
Analysis generated by Bobby AI quantitative model, reviewed and edited by our research team. This is not financial advice. Always do your own research before making investment decisions.
Bobby Insight
Arista Networks is a strong buy for long-term investors seeking AI exposure.
The company's accelerating revenue growth, expanding margins, and dominant position in AI networking make it a standout. While the stock has run up, the raised guidance and potential new customers suggest further upside. Risks include valuation and competition, but the trend is clearly in Arista's favor.
What This Means for Me
