CONTEC MEDICAL SYSTEMS CO. (SZ:300869) 第一财经·2025-07-25 04:03Market Overview - The Shanghai Composite Index reported at 3593.38 points, down 0.34%, while the Shenzhen Component Index was at 11160.3 points, down 0.29%, and the ChiNext Index at 2337.8 points, down 0.32% [1][2] - The trading volume in the Shanghai and Shenzhen markets reached 1.11 trillion yuan, a decrease of 94.5 billion yuan compared to the previous trading day, with over 3000 stocks declining [3][4] Sector Performance - The hydropower concept stocks experienced a correction, with Zhongshe Co. hitting the daily limit down, and other stocks like Shenwater and Iron Construction falling over 10% [2] - The AI application sector showed strength, with medical devices, education, glyphosate, and e-commerce sectors leading in gains [2] - The medical device sector saw significant gains, with stocks like Zhengchuan Co. and Kangtai Medical hitting the daily limit up, and Nanwei Medical rising over 12% [16][17] - The CRO (Contract Research Organization) sector was active, with Boteng Co. rising nearly 10% and other related stocks also gaining [18] Commodity Market - The main contract for polysilicon futures increased by 4%, reaching 54,280 yuan per ton [7] - The main contract for lithium carbonate futures hit the daily limit up, reaching 80,520 yuan per ton, with a rise of 7.99% [10] - The main contract for glass futures expanded its daily increase to 7%, reaching 1,349 yuan per ton [20] Banking Sector - Banking stocks showed strength at the beginning of the trading session, with Ningbo Bank rising over 5% [20]