LongANETJune 30, 2026

Sustainable Growth Advisers, LP on Arista Networks

Thesis

SGA initiated Arista Networks because it sees durable long-term growth in high-performance data-center networking. Arista's EOS software platform runs across its switches and supports scalability, automation, reliability and operational simplicity, while superior product performance has helped sustain strong margins and pricing power. Once deployed in hyperscale environments, Arista becomes deeply embedded in customer operations, creating switching costs and repeat business through expansion and technology refresh cycles. Structural demand from cloud and AI workloads, together with upgrades from 100G to 400G and 800G architectures, supports revenue durability. SGA views Arista as a high-quality long-term compounder positioned to benefit from the buildout of data-center networking.

We view Arista as a high-quality, long-term compounder well-positioned to benefit from the structural buildout of data center networking
Sustainable Growth Advisers, LP — U.S. Large Cap Growth Commentary

Key risks

  • Competition from Cisco and potential new entrants
  • Customer concentration among large hyperscalers
  • Variability in deferred revenue growth
  • Supply-chain dependencies

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