36Kr learned that the three major indices of A-shares collectively fell during the midday break, with the Shanghai Composite Index down 0.3%, the Shenzhen Component Index down 1.22%, and the ChiNext Index down 1.83%; the optical module concept led the decline, with Tongyu hitting the limit down, CIG and Centec Communications falling over 7%; the commercial aerospace concept corrected, with AEROSPACE POWER hitting the limit down, Aerospace Huanyu and SHHG falling over 8%; the AI application sector saw significant gains, with Zhewen Interactive and TD Online hitting the limit up, and BlueFocus rising over 6%