MKS Instruments is trading 4.46% higher at $283.35 on October 2, 2026, apparently tracking semiconductor strength; no fresh company-specific catalyst was confirmed.
- Semiconductor shares were supported by Micron’s strong results and guidance, alongside deal-related activity.
- MKS Instruments gained 2.22% on October 1. Reports offer limited company-specific confirmation, so confidence in the explanation is medium.