Hong Kong-listed optical communication stocks continued their upward trend, with Cambridge Technology (06166.HK) surging over 14.5%, InnoLight Technology (03308.HK) rising nearly 10%, Hygon Microelectronics (01191.HK) gaining nearly 7%, and Huiju Technology (01729.HK) climbing nearly 6%. Yangtze Optical Fibre and Cable (06869.HK) and Huahong Grace Semiconductor (01347.HK) both rose over 4%.