Revvity is trading 40% down at $85.57 after falling sharply in after-hours trading on September 22, 2026; no clear catalyst has been identified. - The regular-session close was $143.30. No credible company-specific announcement, earnings release, or late-breaking event explaining the decline was found. - Recent coverage highlighted a Goldman Sachs price-target increase and favorable second-quarter results, while broader indexes were largely stable; delayed news should be rechecked.