On September 15, YOFC fell 3.19% in regular trading, trading at 168.7 HKD/share, with turnover of approximately HKD 605 million, extending the prior session's pullback.

On the news front, three major AI companies — Anthropic, OpenAI, and SpaceX AI — jointly called for slowing the pace of AI development, creating short-term headwinds for AI hardware and optical communication stocks. Analysts noted this event may pressure AI hardware and large-model companies in the near term, though mid-to-long-term AI computing infrastructure trends remain intact.

The broader optical communication sector continued to weaken following a collective retreat on September 14, when Cambridge Technology fell 5.89% and ZJ Innolight dropped 5.30%. YOFC itself had posted substantial prior gains, including a 9.91% single-day surge on September 9 and a further 3.44% gain on September 11, resulting in significant accumulated gains that intensified profit-taking pressure. The company reported first-half net profit of approximately RMB 2.925 billion, a year-on-year increase of 889%.

(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.)