生物制品板块8月19日涨0.27%，欧林生物领涨，主力资金净流入2.5亿元

Market Overview - The biopharmaceutical sector increased by 0.27% on August 19, with Olin Bio leading the gains [1] - The Shanghai Composite Index closed at 3727.29, down 0.02%, while the Shenzhen Component Index closed at 11821.63, down 0.12% [1] Top Performers - Olin Bio (688319) closed at 31.21, up 12.71% with a trading volume of 275,600 shares and a transaction value of 831 million [1] - Nossland (430047) closed at 28.44, up 11.53% with a trading volume of 211,700 shares and a transaction value of 622 million [1] - Ganli Pharmaceutical (603087) closed at 68.03, up 6.95% with a trading volume of 406,100 shares and a transaction value of 2.793 billion [1] Underperformers - Junshi Biosciences (688180) closed at 45.32, down 3.70% with a trading volume of 210,400 shares and a transaction value of 977 million [2] - ZhiXiangQuanTai (688443) closed at 33.05, down 3.42% with a trading volume of 77,200 shares and a transaction value of 260 million [2] - SanShengGuoJian (688336) closed at 54.10, down 2.50% with a trading volume of 85,900 shares and a transaction value of 477 million [2] Capital Flow - The biopharmaceutical sector saw a net inflow of 250 million from institutional investors, while retail investors experienced a net outflow of 379 million [2][3] - Major stocks like Shenzhou Cell (688520) had a net inflow of 1.39 billion from institutional investors, but a net outflow of 1.08 billion from retail investors [3]