A股早评：三大指数集体低开，CPO概念股调整，中科曙光跌停

Market Overview - The A-share market opened lower, with all three major indices declining: the Shanghai Composite Index fell by 0.21% to 3901.13 points, the Shenzhen Component Index decreased by 0.20%, and the ChiNext Index dropped by 0.26% [1] Sector Performance - Spot silver prices surpassed $61, reaching a new historical high, which positively influenced the performance of gold and silver stocks [1] - The retail and dairy sectors opened higher, while some CPO concept stocks experienced adjustments [1] Company News - Zhongke Shuguang faced a limit down in its stock price, while Haiguang Information saw a decline of over 3% as both companies terminated their plan for a 100 billion yuan share swap merger [1]