On July 31, CIG rose 15.7% in regular trading, trading at 71.15 HKD/share, with turnover of HKD 182 million. The stock staged a sharp rebound alongside the broader optical communications and storage sectors after three consecutive trading days of heavy losses.

On the news front, the optical communications sector mounted a collective oversold rebound, with YOFC up over 15%, Huijutech up over 14%, and sector peers broadly rallying. CIG had previously suffered a cumulative decline exceeding 30% over three trading days from July 28, triggered by a sustained selloff in US semiconductor and optical communications stocks, where the Philadelphia Semiconductor Index fell 4.25% and key names including ALAB, CRDO, and Coherent each dropped approximately 10%.

The company issued an announcement on July 30 confirming no undisclosed material information exists. Fundamentally, CIG forecasts H1 net attributable profit growth of 157% to 197%, reaching RMB 310.3 million to RMB 359.3 million, driven by robust high-speed optical module demand from AI datacenter buildouts. Institutions broadly attribute the prior decline to external sentiment contagion and crowded-trade unwinding rather than fundamental deterioration.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)