Hesai Group is trading at $12.78, down -8.65% in live trading on October 21, 2026; available reporting identifies no fresh catalyst.
- Shares rose 8.28% to $13.99 in the prior session.
- The company scheduled third-quarter results for November 10; Kosmo launch coverage dates to October 14–20, not October 21.
- Major indexes were modestly mixed-to-positive, but the snapshot does not establish a broad-market explanation for the drop.