Zheng Xing Xing Ye Ri Bao·2026-01-29 09:03Market Overview - The biopharmaceutical sector experienced a decline of 1.3% on January 29, with Hualan Vaccine leading the drop [1] - The Shanghai Composite Index closed at 4157.98, up 0.16%, while the Shenzhen Component Index closed at 14300.08, down 0.3% [1] Individual Stock Performance - Weigao Bio (002880) saw a closing price of 30.07, with an increase of 4.59% and a trading volume of 88,100 shares, totaling a transaction value of 266 million yuan [1] - Changchun High-tech (000661) closed at 98.30, up 0.92%, with a trading volume of 64,700 shares and a transaction value of 629 million yuan [1] - Other notable performers include Boya Bio (300294) and Zhifei Biological (300122), both with a closing price increase of 0.92% and 0.73% respectively [1] Declining Stocks - Hualan Bio (301207) reported a significant decline of 9.05%, closing at 22.62, with a trading volume of 300,600 shares and a transaction value of 689 million yuan [2] - Junshi Biosciences (688180) fell by 6.02%, closing at 36.82, with a trading volume of 266,100 shares and a transaction value of 1 billion yuan [2] - Other stocks such as Jinkang (688670) and Bohui Innovation (300318) also experienced declines of 5.81% and 4.95% respectively [2] Capital Flow Analysis - The biopharmaceutical sector saw a net outflow of 866 million yuan from institutional investors, while retail investors contributed a net inflow of 682 million yuan [2] - Notable net inflows from retail investors were observed in stocks like Shanghai Laishi (002252) and Weigao Bio (002880) [3] - Conversely, stocks such as Zhixiang Quantai (688443) and Weigao Bio (002880) experienced significant net outflows from institutional and speculative investors [3]