MagnaChip Semiconductor is trading at $3.55, up 6.39%, in after-hours trading, with no verified company-specific announcement or late-breaking catalyst identified for August 19, 2026.

  • Latest earnings were released July 29; revenue missed expectations.
  • Management guided third-quarter revenue to $41.5 million–$45.5 million.
  • Broader indexes finished modestly higher, but the move does not clearly explain the extended-hours gain.