Mercer International is trading 5.15% down in after-hours trading at $0.37, after closing at $0.39 on September 11, 2026, with no new company-specific announcement or filing clearly explaining the decline.

  • The previously announced September maintenance shutdown at Mercer Rosenthal remains known.
  • Weak Q2 results were reported earlier.
  • Broader markets rose strongly, so the decline does not clearly track overall sentiment.