On July 2, Lumentum Holdings fell 3.64% in pre-market trading, trading at $779.1/share, with turnover of $7.23 million. The decline came amid continued weakness across the optical communications sector.

On the news front, an independent research institution published a report indicating that co-packaged optics (CPO) technology mass production timelines may be pushed back to 2028 or even 2029, with system-level yield rates at only approximately 19%, far below mass production standards. This fundamental concern has persistently weighed on optical communications sector sentiment. The Communication Equipment sector showed broad weakness, with Applied Optoelectronics down 4.2%, Nokia down 3.1%, Ciena down 2.25%, and Arista Networks down 1.49%, reflecting strong sector linkage effects that have intensified selling pressure on individual stocks.

Market participants are reassessing expectations for AI optical communications, with capital increasingly focused on customer relationships, order certainty, and the actual pace of CPO technology commercialization rather than broad thematic exposure.

(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.)