Fair Isaac is trading 8.02% down at $773.61, with no verified company-specific announcement or late-breaking catalyst identified for the after-hours drop.

  • It closed at $841.04 on September 28, 2026.
  • Reuters reported U.S. stocks fell as oil rose amid stalled U.S.-Iran talks and Treasury yields climbed, renewing inflation and interest-rate concerns.
  • That broader backdrop may have added pressure, but available reporting does not directly link it to Fair Isaac’s after-hours move.