On August 19, CIG fell 5.1% in regular trading, trading at 95.3 HKD/share, with turnover of 56.19 million HKD. The optical communications sector came under broad selling pressure, with peers YOFC down 5.95%, Trigiant down 8.6%, and ZJ Innolight down 4.17%.

On the news front, the stock had accumulated gains exceeding 45% on the A-share market from August 4 to 17, during which the three-day cumulative price deviation reached 20%, triggering an abnormal trading activity warning. On August 17, main capital recorded a net outflow of 403 million yuan, signaling sustained profit-taking by institutional investors. The excessive short-term rally combined with sector-wide cooling has created significant pullback pressure on the share price.

(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.)