2 1 Shi Ji Jing Ji Bao Dao·2025-09-04 10:25Core Viewpoint - On September 4, the Shanghai Composite Index fell by 1.25%, the Shenzhen Component Index dropped by 2.83%, and the ChiNext Index decreased by 4.25% [1] Group 1: Stock Performance - A total of 61 stocks appeared on the Dragon and Tiger List due to significant price movements, with the highest net inflow of funds into Xinyi Sheng (300502.SZ) amounting to 804 million yuan [1][4] - Xinyi Sheng's stock price closed down by 15.58% with a turnover rate of 11.77% [2][8] - The stock with the highest net outflow was Yanshan Technology (002195.SZ), which saw a net sell-off of 989 million yuan, accounting for 8.79% of its total trading volume, and closed down by 9.98% with a turnover rate of 24.25% [4][6] Group 2: Institutional and Northbound Capital Activity - Among the 35 stocks on the Dragon and Tiger List, institutions were involved in 15 stocks with a total net purchase of 251 million yuan, while net selling occurred in 20 stocks [6][14] - The stock with the highest institutional net purchase was Tianfu Communication (300394.SZ), which closed down by 15.42% with a turnover rate of 8.45% [7] - Northbound capital participated in 31 stocks on the Dragon and Tiger List, with a total net purchase of 442 million yuan, where Xinyi Sheng had the highest net inflow of 401 million yuan [10][13] Group 3: Common Trends in Institutional and Northbound Capital - Both institutions and northbound capital jointly net bought Xinyi Sheng, Tianfu Communication, and several other stocks, while they collectively net sold stocks like Data Port and Yanshan Technology [13][14] - There were discrepancies in stocks like Huagong Technology and Shanzi High-Tech, where institutions sold while northbound capital bought [13]