[CPO concept stock once again pulls up Tachenguang 20CM limit] Tachenguang 20CM rose by the daily limit, Yuanjie Technology, Decco, Huagong Technology, Changguang Huaxin rose more than 5%, Optical Technology, Tianfu Communications, Xin Yisheng and so on rose. On the news side, LightCounting, a market research firm in the optical communications industry, estimates that the market share of using SiP-based optical modules will increase from 24% in 2022 to 44% in 2028.