午评：沪指半日调整跌0.44%，页岩气等深地经济产业链延续活跃

Core Viewpoint - The three major indices experienced a collective decline in early trading, with the Shanghai Composite Index down 0.44%, the Shenzhen Component down 0.81%, and the ChiNext Index down 0.89%, while the North Exchange 50 rose by 1.19% [1] Market Performance - The total trading volume in the Shanghai and Shenzhen markets reached 1,114.1 billion yuan, a decrease of 49.1 billion yuan compared to the previous day [1] - Over 2,800 stocks in the market saw declines [1] Sector Performance - The leading sectors with gains included engineering machinery, wind power equipment, plant-based meat, shale gas, real estate, controllable nuclear fusion, and influenza [1] - The sectors with the largest declines included gold concepts, Hainan Free Trade Zone, gas, batteries, coal, and rare earth permanent magnets [1] Notable Stock Movements - Gold concept stocks collectively fell due to a significant drop in international gold prices, with companies like Hunan Silver, Xiaocheng Technology, Western Gold, and others experiencing declines exceeding 5% [1] - The Hainan Free Trade Zone sector also adjusted, with Haima Automobile, Hainan Airlines, and Haixia Shares leading the decline [1] - CPO concept stocks saw a surge, with Zhongji Xuchuang hitting a historical high [1] - The shale gas sector maintained its strong performance, with Shenke Co. and Petrochemical Machinery achieving three consecutive trading limits, while Shandong Molong and Petrochemical Oil Service achieved two consecutive limits [1] - The real estate sector was also active, with Yingxin Development achieving three consecutive limits and Guangming Real Estate achieving two consecutive limits [1] - Multiple sectors, including wind power equipment, plant-based meat, and engineering machinery, experienced rotation during trading [1]