PSI is trading at $129.01, down 1.77% after the October 28, 2026 regular-session close of $131.34; no clear company-specific announcement or verified catalyst was identified.
- Earlier semiconductor-sector optimism followed SK Hynix’s record quarterly profit, which Reuters attributed to AI infrastructure demand; this helps explain sector strength, but not PSI’s after-hours drop.
- Supplied broad-market moves were mixed, with no clear same-direction driver.