PANews reported on May 12th that, according to Jinshi, A-share indices fluctuated weakly, with most individual stocks declining. At the close, the Shanghai Composite Index fell 0.25%, the Shenzhen Component Index fell 0.47%, and the ChiNext Index rose 0.15%. The combined turnover of the Shanghai and Shenzhen stock exchanges was 3.24 trillion yuan, a decrease of 296.2 billion yuan from the previous trading day, marking the fifth consecutive trading day with turnover exceeding 3 trillion yuan. On the market, over 4,000 stocks declined. Optical communication concepts strengthened, with Tongguang Cable and Yunnan Germanium hitting their daily limit; ultra-high voltage and smart grid concepts also strengthened, with Dalian Porcelain and Hanlan Cable hitting their daily limit; CPO concepts were active, with the share price of optical module leader Zhongji Xuchuang breaking through 1,000 yuan, becoming the second stock on the ChiNext to reach 1,000 yuan; power, semiconductor, and securities sectors led the gains; pork, industrial gas, lithium mining, and liquor sectors led the declines.