Arista delivered a 29% year-over-year increase in quarterly revenue, reflecting accelerated sales of its high-performance data center switches. The robust results triggered a 12% jump in the share price as investors responded positively to both top-line growth and profit metrics.

Management lifted its fiscal 2026 revenue guidance from a low-teens growth forecast to a mid-teens range, driven by expanding uptake of AI-optimized networking products among hyperscale cloud and enterprise customers. Forecast commentary highlighted sustained order momentum and an improving sales mix toward higher-margin offerings.