Zheng Quan Shi Bao Wang·2025-09-03 14:22Core Insights - On September 3, the Shanghai Composite Index fell by 1.16%, with institutional investors appearing on the trading lists of 26 stocks, net buying 13 and net selling 13 [1][2]. Institutional Trading Summary - The stock with the highest net institutional buying was Chenxin Pharmaceutical, which closed at the daily limit with a gain of 10.02% and a turnover rate of 5.97%, resulting in a total transaction amount of 696 million yuan. Institutional seats accounted for a net purchase of 115.76 million yuan [2][5]. - Xiaocheng Technology saw a decline of 3.46% with a turnover rate of 33.97% and a total transaction amount of 1.812 billion yuan, leading to a net institutional buying of 110.91 million yuan despite a net outflow of 707.76 million yuan [2][5]. - Airo Energy experienced a significant increase of 19.15% with a turnover rate of 10.07% and a total transaction amount of 707 million yuan, resulting in a net institutional buying of 72.55 million yuan [3][5]. Market Performance - The average increase of stocks with net institutional buying was 7.73%, outperforming the Shanghai Composite Index. Notable performers included Kexin Electromechanical and Shangneng Electric, both closing at the daily limit [3][4]. - A backtest of stocks with net institutional buying over the past month showed a 48.60% probability of rising the next day and a 46.11% probability of outperforming the Shanghai Composite Index [3]. Net Selling Summary - The stock with the highest net institutional selling was Jilun Intelligent, which had a turnover rate of 32.87%, leading to a net selling of 98.80 million yuan [3][5]. - Fourchuang Electronics and Chengfei Integration also saw significant net selling, with amounts of 79.43 million yuan and 73.89 million yuan respectively [4][5]. Stock Connect Activity - On September 3, 21 stocks on the trading list had either Shanghai or Shenzhen Stock Connect participation, with notable net buying in stocks like Yanshan Technology and Sanwei Communication, amounting to 280.16 million yuan and 113.93 million yuan respectively [6][7]. - Conversely, significant net selling was observed in stocks such as Huasheng Tiancheng and Chenxin Pharmaceutical, with amounts of 270 million yuan and 54.72 million yuan respectively [6][8].