CPO Breakthrough Sends China Communication Equipment Index Up 5.78%

China's communication equipment index (931160) rose 5.78% by the midday close on July 21, 2026, with Longsail Bochuang up 9.95%, Zhongji Innolight up 9.55%, and Star-Net up 9.22%, while Dingtong Technology and Eoptolink also advanced. Jiemian News reported that Xizi Technology formally launched a full-stack optical computing strategy covering optical computing, optical interconnect and optical switching, and unveiled a domestically developed 51.2T CPO switch prototype co-developed with Centec Networks. The company said the prototype marks a breakthrough in full domestic production of core components for high-end AI optoelectronic co-packaged equipment and fills a key interconnect gap for large-scale intelligent computing clusters.