On July 30, CIG fell 5.57% in regular trading, trading at 67.4 HKD/share, with turnover of HKD 139 million.

On the news front, the US semiconductor and optical communications sectors continued to plunge, with Corning dropping over 19% post-earnings, Micron Technology falling over 10%, and SK Hynix declining over 8%, transmitting sustained selling pressure to the Asia-Pacific market. On July 28, optical communications stocks had already suffered a broad selloff, with CIG plunging nearly 20% in Hong Kong in a single session and hitting limit-down on the A-share market on consecutive days.

On the fundamental side, the company previously issued a positive profit alert, forecasting H1 attributable net profit growth of 157% to 197% year-over-year, driven by strong high-speed optical module demand and improved product mix. The company noted sufficient orders on hand, indicating the current decline is primarily attributable to external sentiment contagion and systematic sector adjustment rather than deterioration in business fundamentals.

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