Arm Holdings is trading 3.01% up now at $332.62, as Meta’s Muse AI agent reinforces expectations that agentic-AI workloads need substantially more CPU capacity.
- Extends the strong September 21, 2026 rally; below the prior session’s 17.16% gain.
- Piper Sandler initiated Overweight with a $320 target; Neoverse CSS N4 and AGI CPU launches supported Arm’s AI infrastructure opportunity.
- Semiconductor strength supported shares: SOXX rose 2.62%; broader indexes were mixed, while the company-specific AI catalyst remained clearest.