液冷概念多股涨停，港股科网股集体跳水，千亿大模型第一股盘中狂飙30%

Market Overview - The Shanghai Composite Index experienced a slight increase of 0.12%, while the Shenzhen Component Index rose by 0.81%, and the ChiNext Index increased by 1.18% as of the midday close [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.34 trillion yuan, an increase of 30.5 billion yuan compared to the previous trading day, with over 2,700 stocks rising across the market [1] Sector Performance - The electric grid equipment sector saw significant gains, with companies like Siyi Electric (002028) and Sifang Co., Ltd. (601126) reaching new highs, and stocks such as Wangbian Electric (603191) and Shun Sodium Co., Ltd. (000533) hitting the daily limit [4] - The liquid cooling server concept also performed strongly, with stocks like Chuanrun Co., Ltd. (002272) and Dayuan Pump Industry (603757) hitting the daily limit. This surge was driven by Nvidia's liquid cooling supplier, Vertiv, reporting better-than-expected earnings and a strong outlook, leading to a 24% increase in its stock price [4] - The non-ferrous metals sector remained active, with companies like Xianglu Tungsten Industry (002842) and Zhangyuan Tungsten Industry (002378) seeing consecutive gains. The China Minmetals Import and Export Chamber announced a conference on rare earth and rare metal export policies scheduled for March 25, 2026 [5] Notable Stocks - CPO concept stocks gained traction, with Jingchen Co., Ltd. rising over 12% and Tianfu Communication (300394) increasing over 10%, reaching a new historical high [6] - The film and cinema sector faced a collective decline, with stocks like Huanrui Century (000892) and Hengdian Film (603103) hitting the daily limit down [7] - In the Hong Kong market, major tech stocks such as NetEase and Meituan fell over 3%, while Kuaishou and Alibaba dropped over 2% [7] Emerging Companies - The AI model company Zhiyu saw its stock price surge over 30%, with a market capitalization exceeding 170 billion HKD, following announcements of price increases and new product launches [8]