存储芯片概念股，大爆发

Market Overview - The A-share market experienced a slight upward trend in the morning session, with the Shanghai Composite Index rising by 0.40% and the Shenzhen Component Index increasing by 0.31% [4] - The STAR 50 Index showed strong performance, rising over 2% during the session and reaching a nearly four-year high [1] Sector Performance - The non-ferrous metals sector led the market gains, with stocks like Boke New Materials achieving two consecutive trading limit increases and Xiyu Co. hitting the daily limit [1] - Storage chip concept stocks continued their strong performance, with Zhongdian Xinlong achieving four trading limit increases in seven days and Jiangbolong hitting the daily limit, setting a new historical high [3] - Other chip stocks also showed strength, contributing to the rise of the STAR 50 Index, with Huahong Semiconductor experiencing significant gains and reaching a historical high [3] - Battery concept stocks were actively traded, with Tianji Co. achieving three consecutive trading limit increases and Shida Shenghua achieving two consecutive trading limit increases [3] Weak Sectors - The financial sector, including banks and insurance companies, showed weakness, with these stocks experiencing the largest declines in the market [4]