收评：沪指收跌0.81% 生物制品板块涨幅居前

Core Points - The A-share market experienced a collective decline across the three major indices, with the Shanghai Composite Index down by 0.81% to 3954.79 points, the Shenzhen Component Index down by 1.14% to 13378.21 points, and the ChiNext Index down by 2.31% to 3187.53 points [1] Sector Performance - The top-performing sectors included: - Biopharmaceuticals, which rose by 4.09% with a total trading volume of 762.11 million hands and a net inflow of 21.75 billion [2] - Film and television, which increased by 3.80% with a trading volume of 1157.97 million hands and a net inflow of 15.06 billion [2] - Chemical pharmaceuticals, which saw a rise of 3.64% with a trading volume of 3275.34 million hands and a net inflow of 83.65 billion [2] - The sectors that faced declines included: - Insurance, which fell by 3.13% with a trading volume of 303.28 million hands and a net outflow of 11.25 billion [2] - Small metals, which decreased by 1.90% with a trading volume of 1034.74 million hands and a net outflow of 41.11 billion [2] - Components, which dropped by 1.86% with a trading volume of 1429.69 million hands and a net outflow of 54.08 billion [2]