Institutional ticker directory tracking stock mentions, long/short ideas, and high-conviction pitches extracted from quarterly hedge fund letters.
| Ticker | Company | Sector | Industry | Pitches | Stance |
|---|---|---|---|---|---|
| Fund / Manager | Thesis Excerpt | Stance | Period / Date | Action |
|---|---|---|---|---|
Giverny Capital Asset Management David M. Poppe | “Arista is the leading provider of networking equipment for hyperscale data centers. As AI traffic grows exponentially, data center owners increasingly need signal to move seamlessly not only within a given data center, but between data centers. The demands on the routers and switches that direct the flow of traffic are considerable. As the most sophisticated networking provider, Arista's growth may accelerate in coming years. We trimmed Alphabet and Arista. We sold about 20% of our position in Arista in April in two tranches at an average price of about $160. The stock finished the quarter higher than our sale price. Arista and Alphabet remain our largest positions as of June 30. The valuations on both are high enough that future returns likely will be lower than we're used to, even if the businesses continue to grow.” | NEUTRAL | Q2 2026 Aug 4, 2026 | View Pitch |
SGA - U.S. Large Cap Growth Tucker Brown | “We initiated a new position in Arista Networks, a high-performance networking company focused on software-driven cloud architectures for hyperscalers, cloud providers, and other high-performance computing environments. The company's core innovation, the Extensible Operating System (EOS), is a single, highly modular Linux-based platform that runs across all switches, enabling scalability, automation, and reliability and operational simplicity across complex network environments. Arista's focused architecture and superior product performance have supported stable gross margins of approximately 60-65% and non-GAAP operating margins above 40%, demonstrating meaningful pricing power. While approximately 85% of Arista's revenue is derived from hardware products, the business exhibits a high degree of repeatability driven by ongoing data center expansion, technology refresh cycles, and increasing network complexity. Once deployed within a hyperscale environment, Arista becomes deeply embedded in customer operations, creating meaningful switching costs and positioning the company to participate in future network expansions. Revenue durability is further supported by structural demand for data center networking and consistent upgrade cycles from 100G to 400G and increasingly 800G architectures. We view Arista as a high-quality, long-term compounder well-positioned to benefit from the structural buildout of data center networking and the proliferation of cloud and AI driven workloads.” | NEUTRAL | Q2 2026 Jul 30, 2026 | View Pitch |
SGA - Global Growth Hrishikesh Gupta | “We initiated a new position in Arista Networks, a high-performance networking company focused on software-driven cloud architectures for hyperscalers, cloud providers, and other high-performance computing environments. The company's core innovation, the Extensible Operating System (EOS), is a single, highly modular Linux-based platform that runs across all switches, enabling scalability, automation, and reliability and operational simplicity across complex network environments. Arista's focused architecture and superior product performance have supported stable gross margins of approximately 60-65% and non-GAAP operating margins above 40%, demonstrating meaningful pricing power. While approximately 85% of Arista's revenue is derived from hardware products, the business exhibits a high degree of repeatability driven by ongoing data center expansion, technology refresh cycles, and increasing network complexity. We view Arista as a high-quality, long-term compounder well-positioned to benefit from the structural buildout of data center networking and the proliferation of cloud and AI driven workloads.” | NEUTRAL | Q2 2026 Jul 30, 2026 | View Pitch |
BBH Select Series - Mid Cap Fund Timothy F. Harris | “Arista returned 38.4% during the quarter, ending with a weight of 5.1%. Arista is the leading provider of data center switches to cloud network customers. Arista reported strong first quarter results with record revenue and free cash flow ahead of expectations, but guidance fell short of high expectations due to increasing supply chain shortages. In addition, extended customer acceptance cycles on new AI products have pushed a growing volume of contracted demand into deferred revenue ahead of recognition, temporarily understating reported revenue growth and creating some investor confusion. However, management subsequently clarified this dynamic, clearly delineating 54% growth inclusive of deferred product revenue. Management also expressed confidence in the outlook for 2026 along with a constructive demand backdrop for 2027. Finally, rising component costs are an industry-wide challenge, but Arista's multiyear supply commitments and execution track record leave us confident in their ability to execute throughout the next several years. Gross margin guidance of 62% to 64% was maintained despite the rising input cost pressures. Management also continues to expect one or possibly two new 10%+ customers in 2026 beyond Microsoft and Meta as Arista meets the needs of multiple companies building out data centers for AI.” | NEUTRAL | Q2 2026 Jul 30, 2026 | View Pitch |
Madison Mid Cap Fund Haruki Toyama, Andy Romanowich, Rich Eisinger | “The AI data center build out is also driving high revenue and backlog growth for Arista Networks' (ANET) advanced networking gear. We sold shares in Arista Networks (ANET) on valuation. Arista is the leader in high-speed network switches used in data centers. The surge in data center builds has boosted what was already a high growth profile, and share price performance has followed suit. We felt the bright outlook was now baked into the stock.” | NEUTRAL | Q2 2026 Jul 17, 2026 | View Pitch |
Giverny Capital Asset Management David M. Poppe | “Arista Networks declined 6.3% in the first quarter, acting as a minor drag on overall performance. The manager views it as a core business with excellent long-term track records, strong margins, and high returns on capital.” | BULL | Q1 2026 Apr 13, 2026 | View Pitch |
Giverny Capital Asset Management David M. Poppe | “Arista Networks has been our best performing stock since inception, and 2025 was more of the same. It makes high-quality routers and switches for hyperscale users like Meta Platforms and Microsoft. This networking equipment, coupled with a software operating system that helps users manage capacity bottlenecks in data centers, optimizes the flow of data through massive computer networks. BSD Analysis: Arista sells the nervous system of modern data centers where downtime is unacceptable. Its software-driven networking wins because hyperscalers care about reliability, latency, and automation, not logo count. AI workloads increase east-west traffic, which plays directly into Arista's strengths. Investors still treat Arista like a cyclical hardware name and miss the software margin profile. Switching costs are operational, not contractual, which is stronger. Execution discipline has been relentless. This is cloud infrastructure paid for by scale and physics.” | BULL | Q4 2025 Oct 24, 2025 | View Pitch |
Madison Sustainable Equity Fund Maya Bittar, Dave Geisler | “Arista Networks reported a robust second quarter with revenues up 30% year-over-year and adjusted net income up 37%. Following this, management raised full-year guidance to $8.75 billion in revenue (25% growth) and expanded gross margin expectations to 63–64% with a 48% operating margin. The company projects 20% revenue growth for 2026, which analysts consider conservative given sustained data center demand. Arista continues to benefit from secular investment in AI infrastructure and hyperscale cloud networking. BSD Analysis: Arista isn't just winning in AI networking — it's running the table. Hyperscalers can't afford downtime or bottlenecks, and Arista's EOS stack delivers performance that legacy vendors can't touch. Its AI-driven architectures are becoming the default for massive GPU clusters, handing Arista a near-monopoly on the fastest-growing segment of the entire networking market. Gross margins are absurdly strong, operating leverage keeps climbing, and every quarter the company takes more share from slower, bloated incumbents. ANET is no longer a challenger brand — it's becoming the backbone of hyperscale compute.” | BULL | Q3 2025 Sep 30, 2025 | View Pitch |
Madison Mid Cap Fund Haruki Toyama, Andy Romanowich, Rich Eisinger | “Arista Networks benefited from continued AI infrastructure buildout, driving outstanding revenue growth. Strength in enterprise demand complements hyperscale data center momentum. Madison trimmed the position slightly after strong outperformance but maintains conviction in Arista's durable competitive position and secular tailwinds. BSD Analysis: Arista remains the premier vendor for cloud data-center networking, riding AI and east-west traffic growth with unparalleled product execution. EOS software and merchant-silicon strategy deliver superior margins and rapid iteration. Hyperscaler wallet share keeps expanding, and enterprise demand is accelerating as companies upgrade to next-gen architectures. The valuation isn't cheap, but the fundamentals are elite. Arista is becoming as indispensable as the CPUs and GPUs it connects.” | BULL | Q3 2025 Sep 30, 2025 | View Pitch |
Each excerpt above is the manager's commentary on this ticker specifically. The full letter has the rest of their portfolio thinking, risk discussion, and broader institutional context.
