The Zhitong Finance App learned that the optical communication concept has declined across the board. As of press release, Cambridge Technology (06166) was down 10.92% to HK$94.35; Junzhi Group (01300) fell 8.11% to HK$2.89; and Zhongji Xuchuang (03308) fell 5.08% to HK$925.

According to the news, Citi released a research report saying that in the past two weeks, it has met with more than 60 European and American institutional investors and found that US investors are mainly concerned about the development of AI optics. Currently, they prefer the US over Chinese optical companies due to concerns about potential FCC restrictions. Earlier, a research report released by Morgan Stanley during the National Day holiday sparked market speculation — in the future, the FCC (US Federal Communications Commission) may start restricting 3.2T optical modules, requiring the US material value to account for more than 65% before it can be approved.

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