On July 20, CIG Shanghai declined 5.94% in regular trading, trading at approximately 80.0 HKD per share, with turnover of HKD 4.63 billion. The A-share listing simultaneously hit the daily limit-down.

The decline was driven by persistent sector headwinds as market rumors circulated that domestic cross-industry giants have begun shipping 800G optical modules and claimed 1.6T technology breakthroughs, triggering fears of intensifying price competition and margin compression across the CPO concept sector. Despite the company forecasting H1 attributable net profit growth of 156.65% to 197.18% year-over-year to RMB 310-359 million — fueled by robust high-speed optical module demand — institutional analysis highlighted that CIG Shanghai, as a mid-tier player, struggles to outperform broader industry expectations. Industry reports confirmed a widening gap between leaders such as Innolight and Eoptolink, which are deeply integrated into premium overseas supply chains, and smaller followers facing slower technology iteration and margin erosion from intensified competition. Profit-taking by early investors in the context of elevated sector valuations continued to weigh on the stock.

(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.)