Decoy Therapeutics is trading 5.21% up at $2.83 after broad market strength, following a $2.67 close on September 11, 2026.

  • No new company-specific announcement or earnings release clearly explains the after-hours move.
  • The S&P 500, Nasdaq Composite, and Dow Jones Industrial Average each gained more than 0.5% during the session.
  • The company’s September 10 conference presentation was recent but not a new September 11 catalyst.