InterDigital is trading 13% down at $302.10 after an unexplained extended-hours selloff, with no clearly reported August 10 company-specific announcement explaining the decline.

  • It followed a $348.25 regular-session close on August 10, 2026.
  • The latest major catalyst remains the July 30 earnings release, which included raised 2026 guidance and record annualized recurring revenue.
  • Broader markets were only modestly weaker, and the official press-release page showed no newer major event; the catalyst remains unclear.