Zheng Quan Shi Bao Wang·2025-09-18 14:41Core Viewpoint - On September 18, the Shanghai Composite Index fell by 1.15%, with institutional investors appearing on the trading lists of 24 stocks, net buying 14 and net selling 10 [1][2]. Institutional Trading Summary - The stock with the highest net buying from institutional seats was Huafeng Technology, which closed at the daily limit with a trading volume of 4.216 billion yuan and a turnover rate of 23.25%. The net buying amounted to 124.87 million yuan [2][5]. - Other notable stocks included Heertai, which also closed at the daily limit with a net buying of 89.78 million yuan, and a total capital inflow of 1.162 billion yuan [2][5]. - In contrast, Dazhihui had the highest net selling amounting to 327.25 million yuan, with a daily decline of 8.83% [3][6]. Market Performance - The average increase of stocks with net institutional buying was 7.67%, outperforming the Shanghai Composite Index. Stocks like Ruiqi Co. and Huafeng Technology showed strong performance, closing at the daily limit [3][4]. - A backtest of stocks with net institutional buying over the past month revealed a 44.27% probability of rising the next day, with a 41.72% chance of outperforming the index [3]. Capital Flow Analysis - The stocks with significant capital outflow included Shanzi Gaoke, which saw a net outflow of 324.5 million yuan, and Xinquan Co., with a net outflow of 195 million yuan [3][4]. - The stocks with net buying from the Shanghai and Shenzhen Stock Connect included Huasheng Tiancai and Heertai, with net buying amounts of 233.16 million yuan and 189.81 million yuan, respectively [7][8].