化学制药板块8月29日涨2.03%，向日葵领涨，主力资金净流入11.67亿元

Group 1 - The chemical pharmaceutical sector increased by 2.03% on August 29, with Sunflower leading the gains [1] - The Shanghai Composite Index closed at 3857.93, up 0.37%, while the Shenzhen Component Index closed at 12696.15, up 0.99% [1] - Key stocks in the chemical pharmaceutical sector showed significant price increases, with Sunflower rising by 15.83% to a closing price of 4.61 [1] Group 2 - The main funds in the chemical pharmaceutical sector had a net inflow of 1.167 billion yuan, while retail funds experienced a net outflow of 263 million yuan [2] - Major stocks like 恒瑞医药 and 华海药业 saw substantial net inflows from main funds, indicating strong institutional interest [3] - The overall trading volume and turnover in the sector reflected active market participation, with Sunflower achieving a trading volume of 2.1687 million hands [1][2]