Flutter Entertainment is trading 15.96% up at $107.75, with no new company-specific announcement identified for August 18, 2026.
- The latest identifiable catalyst was the August 5 earnings release, which showed a $296 million quarterly loss and reduced 2026 guidance.
- That negative news does not directly explain the sharp after-hours rebound; major indexes also declined in a risk-off market, leaving confidence in the immediate catalyst low.