IDEXX is trading 6.72% higher at $745.51 after-hours, with broad market gains providing the clearest same-direction context. - It closed at $698.55 on November 4. - The S&P 500 rose 1.72%, the Nasdaq 1.94%, and the Dow 3.22%. - No clear new company announcement directly explained the jump. The Q3 earnings beat and raised 2026 guidance were reported on November 2, and an analyst price-target increase was reported on November 4; neither establishes a specific cause.