Arista Networks Q4 Earnings Call Highlights

Core Insights - Arista Networks reported strong fourth-quarter results, exceeding revenue and margin targets, driven by momentum in AI-focused data center networking and an expanding campus and routing portfolio [4][6] - The company raised its fiscal 2026 growth outlook, targeting approximately 25% growth to about $11.25 billion, with expectations to double AI networking revenue from 2025 to 2026 [6][15] Financial Performance - Fourth-quarter revenue was $2.49 billion, up 28.9% year-over-year, and full-year revenue reached a record $9 billion, reflecting a 28.6% increase [3][6] - Operating income for the quarter was $1.2 billion, or 47.5% of revenue, contributing to a full-year operating income of $4.3 billion, or 48.2% of revenue [2] - Net income for the quarter was $1.05 billion, marking Arista's first quarter exceeding $1 billion in net income, with diluted EPS of $0.82 [2] Margins and Guidance - Non-GAAP gross margin for the fourth quarter was 63.4%, slightly above guidance but down from 64.2% a year earlier [3] - For fiscal 2026, the company expects non-GAAP gross margin of 62% to 64% and raised the operating margin outlook to approximately 46% [15] Customer and Revenue Mix - Arista's revenue by customer sector includes 48% from cloud and AI titans, 32% from enterprise and financials, and 20% from AI and specialty providers [9] - The company surpassed 150 million cumulative ports shipped in the fourth quarter, with international growth in Asia and Europe rising "north of 40% annually" [7] AI Networking Initiatives - Arista expects to double AI networking revenue to $3.25 billion in 2026, driven by accelerating Etherlink adoption and an imminent shift to 1.6T switching [6][11] - The company is co-designing AI rack systems and has gained over 100 cumulative customers for Etherlink [10] Supply Chain and Deferred Revenue - Executives warned of supply-chain constraints, particularly around memory, indicating a potential one-time price increase on memory-intensive SKUs [5][16] - Total deferred revenue increased to $5.4 billion, up from $4.7 billion, with volatility tied to customer-specific acceptance clauses [21][17] Capital Returns - In Q4, Arista repurchased $620.1 million of shares, totaling $1.6 billion for fiscal 2025, with $817.9 million remaining under the repurchase program [18]