During the lunch break, all three major A-share indices experienced declines. The Shanghai Composite Index fell by 0.84%, the Shenzhen Component Index dropped by 0.76%, and the ChiNext Index declined by 0.58%. Amidst this broad market downturn, certain sectors, including CPO, high-frequency PCB, and optical fiber concepts, defied the trend. Notably, Foxconn Industrial Internet and Huamai Technology surged to hit their daily limits, while Zhongji Xuchuang and Shanghai Electric recorded gains exceeding 9%. Conversely, sectors such as real estate, leisure products, and household goods performed poorly. China Communications Construction fell to its daily limit, and Mubang High-Tech and Zhibang Home saw declines exceeding 4%.