Capcom is trading at ¥4,458, up +4.94%, following the September 4 announcement that it will join the Nikkei 225 effective October 1, 2026.

  • The inclusion can prompt buying from index-tracking funds and ETFs preparing to reflect the constituent change.
  • No additional Capcom-specific announcement was identified for September 7.
  • The Nikkei inclusion is the clearest catalyst behind the move.