Ubtech Robotics is trading 4.34% lower at HK$66.10; available reporting identifies no specific October 29 catalyst for the decline. - The drop follows a sharp reversal after a 9.16% gain on October 28. - Robotics and physical-AI shares rallied broadly on October 28 amid industry optimism and Shanghai’s intelligent-manufacturing plan. That prior-day strength does not establish the cause of the October 29 decline; no confirmed same-day sector or market explanation was found.