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 on February 12 [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 and Sifang Co. reaching new highs, and stocks such as Wangbian Electric and Shun Sodium hitting the daily limit [5] - The liquid cooling server concept performed strongly, with stocks like Chuanrun Co., Dayuan Pump Industry, and Ningbo Jingda hitting the daily limit. The surge was driven by Nvidia's liquid cooling supplier, Vantage Technology, which reported better-than-expected earnings and guidance, leading to a 24% increase in its stock price [5] - The non-ferrous metals sector was active, with companies like Xianglu Tungsten and Zhangyuan Tungsten 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 - The CPO concept saw a resurgence, with Jingchen Co. rising over 12% and Tianfu Communication increasing over 10%, both reaching new historical highs [6] - In contrast, the film and cinema sector faced a collective decline, with stocks like Huanrui Century and Hengdian Film experiencing limit-downs [6] - The commercial aerospace concept stock, Jili Rigging, faced a limit-down after the company denied false media claims regarding its involvement in significant aerospace projects [6] - In the Hong Kong market, the Hang Seng Index and Hang Seng Tech Index both fell, with major tech stocks like NetEase and Meituan dropping over 3% [6] - The AI model company, Zhipu Technology, saw a surge of over 30% in its stock price, with a market capitalization exceeding 170 billion HKD following announcements of price increases and new product launches [6]