Closing Review: The Shanghai Composite Index opened lower and closed higher, up 0.47%. The total market turnover exceeded 3 trillion yuan, and the "Big Three Oil" companies all hit the daily limit of price increases.

The three major A-share indexes rose and fell differently today. As of the close, the Shanghai Composite Index rose by 0.47%, the Shenzhen Component Index fell by 0.2%, the ChiNext Index fell by 0.49%, and the SSE 50 Index fell by 3.99%. The total turnover of the Shanghai and Shenzhen markets reached 3.0458 trillion yuan, an increase of 540.3 billion yuan from the previous day, with over 4200 stocks in the three markets declining. In terms of sector themes, stocks related to oil and gas exploration and services, port shipping, precious metals, military equipment, coal mining and processing, chemical raw materials, fertilizers, soybeans, and CPO concepts led the gains; while stocks related to gaming, media, AI applications, cloud computing, tourism and hotels, weight loss drugs, and retail sectors led the declines. On the market, the U.S. attacking Iran sparked a market rally, with sectors such as oil and natural gas, precious metals, port shipping, military industry, and chemicals all experiencing significant increases. Stocks such as CNOOC, PetroChina, Hunan Gold, China Merchants Energy, and Northern Navigation all hit their daily limit up. BYD, a car manufacturer, surged by 8% after announcing a groundbreaking technology release conference on March 5. In addition, power hardware stocks such as CPO and fiber optics saw increases, with companies like Zhongji Xuchuang rising by over 8% and Cambridge Technology hitting the daily limit up. On the other hand, the AI application sector collectively trended downwards, with gaming and media companies leading the declines, with CITIC Publishing and Flowtech leading the losses. Biomedical stocks also performed poorly, with companies like Junshi Bio and Changchun High-tech seeing declines.