ChipMOS Technologies is trading 5.15% up now at $64.45, primarily as semiconductor stocks rallied on tight chip supply, resilient data-center demand, lower Treasury yields, and renewed AI optimism.

  • It gained 11.27% to $61.30 on September 18.
  • No new company-specific announcement dated September 21 was identified.
  • The broader Nasdaq was up 0.85%, supporting the risk-on backdrop.