Gartner is trading 21.2% down at $144.46 after an unexplained pre-market selloff on September 22, 2026, with no credible catalyst identified.
- Searches found no credible company-specific announcement, earnings release, filing, or analyst action clearly tied to the decline.
- Latest reported quarterly results were stronger than expected, including revenue above consensus, so that update does not explain the move.
- Broader markets are mixed rather than sharply risk-off, limiting macro attribution.