Arm Holdings Stock (NASDAQ: ARM) News Today: Goldman Downgrade, AI Momentum, and Fresh 2026 Forecasts (Dec. 18, 2025)
Arm Holdings plc stock is having one of those “welcome to modern markets” weeks: the long-term AI narrative is still alive and well, but short-term sentiment has turned skittish as analysts debate valuation, Arm’s next strategic move, and what parts