Hong Kong-listed optical communication concept stocks collectively plummeted, with Hygon Optics (01191.HK) falling over 13%, Xizhi Technology-P (01879.HK) falling over 12%, Cambridge Technology (06166.HK) falling over 9%, and Yangtze Optical Fibre an

2026-07-17

Hong Kong-listed optical communication concept stocks collectively plummeted, with Hygon Optics (01191.HK) falling over 13%, Xizhi Technology-P (01879.HK) falling over 12%, Cambridge Technology (06166.HK) falling over 9%, and Yangtze Optical Fibre and Cable (06869.HK) falling over 7%.