Fair Isaac is trading 20.86% up at $1168.00 after-hours, primarily amid a broader market rally on September 17, 2026.

  • The S&P 500 gained 1.10% and Nasdaq Composite rose 2.17%, supporting a broader risk-on backdrop.
  • No new earnings release or clearly attributable company-specific announcement was identified; next reported earnings date is November 11, 2026.
  • Earlier mortgage-scoring regulatory concerns remain relevant background but do not directly explain this same-day gain.