Optical communication concept stocks led the market with notable gains during early trading on Wednesday. As of the time of writing, YOFC (06869) climbed 7.44% to HK$199.30, while CIG (06166) advanced 6.10% to HK$134.00.

Other stocks in the sector also posted strong performance, with Junzhi Group (01300) rising 4.71% to HK$3.67 and Hui Ju Technology (01729) gaining 4.29% to HK$19.44. Meanwhile, Zhongji Innolight (03308) edged up 2.40% to HK$1,280.00.

The broad-based uptick reflects sustained investor interest in optical communication infrastructure, driven by robust demand for high-speed data transmission technologies and ongoing network upgrade initiatives across the region.