Arista Networks (ANET) Stock: What to Know Before the US Market Opens on Dec. 15, 2025
Arista Networks, Inc. heads into the Monday, December 15, 2025 US stock market open after a sharp late-week reversal that put the spotlight back on two familiar questions: how durable AI-driven networking demand really is, and whether Arista’s valuation and margins can stay elevated as growth normalizes. On Friday, Dec. 12, ANET fell 7.17% to $124.76, snapping a multi-day winning streak from earlier in the week. MarketWatch+1