On July 28, 2026, during the trading session, the stocks associated with the CPO (Co-Packaged Optics) concept experienced a downturn. Eoptolink, Yuanjie Technology, and Unispectrum witnessed a significant drop, nearly 10% each. Meanwhile, other companies in the same sector, including Zhongji Innolight, Changguang Huaxin, Dongshan Precision, and Cambridge Technology, also saw their stock prices decline by over 7%.
