生物制品板块9月17日跌0.41%，康华生物领跌，主力资金净流出6.9亿元

Market Overview - The biopharmaceutical sector experienced a decline of 0.41% on September 17, with Kanghua Biotech leading the drop [1] - The Shanghai Composite Index closed at 3876.34, up 0.37%, while the Shenzhen Component Index closed at 13215.46, up 1.16% [1] Stock Performance - Notable gainers in the biopharmaceutical sector included: - Olin Biotech (688319) with a closing price of 28.08, up 4.12% [1] - Wantai Biologics (603392) at 59.40, up 1.49% [1] - Wuxi Jinhai (836547) at 29.32, up 1.45% [1] - Conversely, Kanghua Biotech (300841) saw a significant decline of 3.85%, closing at 78.60 [2] - Other notable decliners included: - Baipusais (301080) down 2.53% [2] - Junshi Biosciences (688180) down 2.52% [2] Capital Flow - The biopharmaceutical sector experienced a net outflow of 690 million yuan from institutional investors, while retail investors saw a net inflow of 408 million yuan [2] - The overall capital flow indicates a mixed sentiment, with retail investors showing interest despite institutional selling [2] Individual Stock Capital Flow - Olin Biotech had a net outflow of 44.1 million yuan from institutional investors, while retail investors contributed a net inflow of 36.2 million yuan [3] - Wantai Biologics saw a net inflow of 20.6 million yuan from institutional investors, indicating positive sentiment [3] - Dongbao Biotech (300239) had a net inflow of 9.1 million yuan from institutional investors, reflecting some level of confidence [3]