Arista Networks, Inc.

“Arista Networks is one of the highest-quality businesses in enterprise technology — founder-led, zero debt, $12.4B net cash, 43% operating margins, and a software-defined networking moat that is actively widening through AI infrastructure spending. The sole credible risk of permanent impairment is hyperscaler vertical integration by Microsoft or Meta, which together represent ~40% of revenue; this risk is real but not imminent. The binding constraint is valuation: at 37x trailing FCF, the market already prices in ~20-22% revenue CAGR through 2030 with no execution shortfall permitted, leaving expected returns of only 9-11% annually in a base case — adequate but insufficient to justify aggressive new allocation given the customer concentration and cyclical sensitivity of the AI capex theme.”