Why Arista Networks Stock Rallied Today

Arista Networks continues to ride the data center build-out and AI adoption.

The company delivered a classic beat-and-raise quarter that caught investors off guard.

Shares of Arista Networks (NYSE: ANET) gained ground on Wednesday, spiking as much as 12.8%. As of 12:33 p.m. ET, the stock had given back some gains, but was still up 4.7%.

The catalyst that sent the high-speed networking solutions provider higher was its quarterly results, as the company delivered accelerating double-digit growth on both the top and bottom lines, far better than investors had hoped.

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For the second quarter, Arista generated record revenue of $3.3 billion, up 40% year over year and 12% sequentially. This resulted in non-GAAP earnings per share (EPS) of $1.02, also up 40%.

For context, analysts' consensus estimates called for revenue of $2.83 billion and adjusted EPS of $0.89, so the company soared past expectations.

"As we deliver our first $3 billion quarter in Q2 2026, it is clear that our Arista 2.0 platform strategy is compelling," stated Jayshree Ullal, Chairperson and CEO of Arista Networks. "Customers see networking as the central nervous system for infrastructure from the client to campus to data and AI centers."