Zheng Xing Xing Ye Ri Bao·2025-09-12 08:31Group 1 - The chemical pharmaceutical sector increased by 0.78% on September 12, with Yuan Dong Biological leading the gains [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] - Notable gainers in the chemical pharmaceutical sector included Yuan Dong Biological, which rose by 11.33% to a closing price of 58.88, and Nuo Cheng Jian Hua, which increased by 11.14% to 29.62 [1] Group 2 - The chemical pharmaceutical sector saw a net inflow of 628 million yuan from institutional investors, while retail investors experienced a net outflow of 776 million yuan [2][3] - Major stocks with significant net inflows included Guang Sheng Tang with 264 million yuan and An Li Kang with 130 million yuan [3] - Conversely, stocks like Tai En Kang and Xin Ju Wei faced declines of 3.89% and 2.41%, respectively, indicating mixed performance within the sector [2]