Arista Networks (ARST.OB) Hopes AI-Driven Demand; Q1 Revenue Outlook Beats Estimates, Shares Up 17%

Arista Networks (ARST.OB) issued upbeat quarterly revenue guidance and saw its shares rise over 17% in extended trading as demand for its high-speed networking hardware, critical for expanding AI and data center infrastructure, outpaces expectations. The company forecast first-quarter revenue of about $2.6 billion, exceeding the average estimate of $2.45 billion. Fourth-quarter revenue reached $2.49 billion versus $2.38 billion expected, with adjusted profit of 82 cents per share beating 76 cents per share. Arista serves major cloud and AI customers including Microsoft and Meta, alongside enterprise, financial services, and specialized cloud providers, driving growth as capital expenditures for AI infrastructure continue to expand.