[CPO concept stock concussion strengthens Dongtian Wei20 CM daily limit] on June 2, Dongtian Weiwei rose by 20 CM, Mingpu optical magnetism rose by the previous limit, Zhongtian Science and Technology, Special Information, Cambridge Science and Technology, Taichenguang, Guangku Technology 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.