GCT Semiconductor is trading at $1.43, down 5.30% on October 20, 2026; the cause of the decline remains unclear.

  • No company-specific announcement or catalyst appeared in the available October 20 search results; the company’s listed releases are older.
  • Semiconductor shares were rebounding and the sector ETF was up, so the sector move does not explain the decline.
  • The Nasdaq was down 0.79% in the supplied market context, which may provide broader context.