Alcoa is trading at $40.13, down 7.74% after-hours, with no clear company-specific catalyst identified.

  • This follows the October 5 regular-session close at $43.50.
  • Alcoa’s investor-relations release list has no October 5 announcement; its next scheduled earnings release is October 15.
  • The broader market was positive, moving in the opposite direction. Recent aluminum-market weakness is background context, but available reporting does not establish it as the cause of this after-hours move.