收评：沪指跌0.39% 培育钻石、钙钛矿电池概念逆市走强

Core Viewpoint - The Chinese stock market experienced a decline, with major indices such as the Shanghai Composite Index and Shenzhen Component Index reporting losses, while certain sectors like cultivated diamonds and perovskite batteries showed strong performance [1] Market Performance - The Shanghai Composite Index closed at 4002.76 points, down 0.39%, with a trading volume of 858.36 billion [1] - The Shenzhen Component Index closed at 13289.01 points, down 1.03%, with a trading volume of 1135.22 billion [1] - The ChiNext Index closed at 3134.32 points, down 1.40%, with a trading volume of 506.70 billion [1] Sector Performance - The cultivated diamond concept saw strong gains, with companies like Sifangda and Huanghe Xuanfeng hitting the daily limit [1] - The perovskite battery concept also rose, with Zhonglai Co., Xiexin Integrated, and Guosheng Technology reaching the daily limit [1] - The fluorine concept showed volatility but ended strong, with Yongtai Technology and Furui Shares hitting the daily limit [1] - The solid-state battery concept was actively traded, with Xiongtao Shares and Fangda Carbon hitting the daily limit [1] - The food and beverage sector performed well, with companies like Huanlejia and Sanyuan Shares reaching the daily limit [1] Declining Sectors - The communication equipment, insurance, securities, and aviation sectors reported the largest declines [1]