Overnight US stocks | "Stocks in the concept of optical communication fell across the board. SemiAnalysis report points out that the delay of two key technologies has caused a significant drop in optical communication stocks."

Concept stocks in the field of optical communication have generally declined. As of the time of publication, Hongteng Precision (06088) fell by 8.33% to HK$7.15, YOFC (06869) fell by 7.99% to HK$235, TIME INTERCON (01729) fell by 7.85% to HK$16.35, and Cig Shanghai (06166) fell by 6.18% to HK$123. On the news front, concept stocks in the field of optical communication in the US fell across the board overnight, with Applied Optoelectronics plummeting by over 17%, Coherent by over 11%, Lumentum by over 8%, and Corning by over 7%. The star analysis institution of the AI industry chain, SemiAnalysis, has released a report directly pointing out the delay of two core technology paths in AI data centers. According to the report, the shipment of NVIDIA's 800VDC power supply architecture may be delayed until 2028, while the mass production of CPO (Co-Packaged Optics) may be delayed until 2028 or even 2029. However, there are reports indicating that senior semiconductor and technology investment journalist Tae Kim published a transcript of a one-on-one interview with NVIDIA's Senior Vice President of Networking Business, Gilad Shainer, during Computex on his Substack column. In the interview, Shainer stated, "The most exciting thing today is Co-Packaged Optics, which is the most advanced direction in technology." He further revealed that NVIDIA is ready to start shipping, and partner Lambda has released a blog confirming the receipt of CPO switches. In the second half of the year, they will accelerate the promotion of CPO, extending from scale-out to scale-up scenarios.