今日看盘 | 9月4日：山西上市公司小幅下跌，24只上涨

Market Overview - On September 4, all three major indices declined, with the Shenzhen Component Index falling by 2.83%, the Shanghai Composite Index decreasing by 1.25%, and the ChiNext Index dropping by 4.25% [1] - The Shanxi sector experienced a slight overall decline of 0.06% [1] Leading Stocks - The top-performing stock in the Shanxi sector was Dayu Biological Engineering Co., Ltd. (stock code: 871970), which rose by 3.40% [1] - Dayu Biological, established on July 23, 2014, is a high-tech enterprise based in Ruicheng, Shanxi Province, with a registered capital of 111.36 million yuan. The company focuses on the research and production of functional biological products, including feed additives and veterinary drugs, and holds 12 national invention patents [1][2] Underperforming Stocks - The worst-performing stock was Northern Copper Industry Co., Ltd. (stock code: 000737), which fell by 5.56% [1] - Northern Copper, founded in December 2002, is the largest copper producer in North China. The company underwent a significant asset restructuring in June 2020 and completed the asset transfer in November 2021, marking a major capital operation in Shanxi Province's state-owned enterprise reform [3]