A股午评：三大指数半日均涨超1% 石油、黄金、化工等资源周期股集体大涨

Market Performance - The three major A-share indices collectively rose in the morning session, with the Shanghai Composite Index increasing by 1.17%, the Shenzhen Component Index by 1.82%, and the ChiNext Index by 1.76% [1] - The total trading volume in the Shanghai, Shenzhen, and Beijing markets reached 15,210 billion yuan, an increase of 3,074 billion yuan compared to the previous day [1] - Over 4,200 stocks in the market experienced gains [1] Sector Performance - The sectors that saw significant gains included oil and gas extraction and services, precious metals, fiber optics, phosphorus chemicals, chemical raw materials, electric grid equipment, coal mining and processing, CPO, and port shipping [1] - Conversely, sectors that faced declines included film and cinema, AI applications, cloud computing, tourism and hotels, insurance, and liquor [1] Key Drivers - Resource cyclical stocks, including oil, natural gas, and gold, surged due to concerns over Trump's tariff policies and escalating tensions in the US-Iran situation [1] - Notable stocks such as Zhongman Petroleum, Hunan Silver, and Jinniu Chemical reached their daily limit [1] - The demand driven by AI led to strong performance in computing hardware stocks, with Longfei Fiber Optics hitting a historical high and stocks like Tianfu Communication, Zhongji Xuchuang, and Xinyi Sheng showing significant gains [1] Notable Declines - The film and cinema sector experienced a sharp decline, with companies like Light Media hitting a 20% limit down, and others such as China Film, Hengdian Film, and Bona Film also facing significant drops [1] - According to the National Film Administration, the box office for the 2026 Spring Festival reached 5.752 billion yuan [1] - Many AI application concept stocks also saw declines, with companies like Meiri Interactive and Jin Modern leading the losses [1]