Core Insights - The animal health sector experienced a decline of 0.28% on October 17, with Ruipu Biotech leading the drop [1][2] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Stock Performance - Shenyuan Biological (688088) saw a significant increase of 10.65%, closing at 11.43 with a trading volume of 319,600 shares and a turnover of 368 million yuan [1] - Other notable gainers included Yongshun Biological (920729) with a rise of 2.94% and Xianfeng Holdings (002141) with an increase of 1.85% [1] - Conversely, Ruipu Biotech (300119) fell by 2.47%, closing at 21.69 with a trading volume of 109,100 shares and a turnover of 239 million yuan [2] Capital Flow - The animal health sector saw a net inflow of 33.17 million yuan from institutional investors, while retail investors experienced a net outflow of 37.18 million yuan [2][3] - Shenyuan Biological had a net inflow of 76.52 million yuan from institutional investors, representing 20.82% of its trading volume [3] - In contrast, other companies like XD Plai Ke (603566) and Huayi Biological (603718) faced significant net outflows from both institutional and retail investors [3]