On August 4, CIG rose 7.09% in regular trading, trading at 76.0 HKD/share, with turnover of approximately 54.93 million HKD.

On the news front, NVIDIA's next-generation Spectrum-X CPO switch has begun shipping to select partners, while Broadcom's 51.2T Bailly CPO switch continues small-volume shipments, marking co-packaged optics technology officially entering mass production. Citi noted that the China optical communications sector may present positioning opportunities around H1 earnings releases, with near-term catalysts including CIOE, Yunqi Conference, and ECOC in September.

CIG's Hong Kong-listed shares had previously plunged over 30% across three trading days from July 28, dragged down by a sell-off in U.S. semiconductor and optical communications stocks. The sector entered a rebound channel on July 31, and the current rise extends this recovery. The company forecast H1 net attributable profit growth of 157% to 197%, driven by rapid expansion of its high-speed optical module business, with fundamentals unchanged.

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