Arista Networks stock jumps 5% as Fed week puts AI data-center plays back in focus
New York, Jan 26, 2026, 20:08 — Market closed. Arista Networks saw its shares climb $7.40, or 5.4%, closing at $143.72 on Monday. That push values the data-center networking company at roughly $183 billion. The stock fluctuated between $135.55 and $146.40 during the session, with around 10.7 million shares changing hands, per market data.