午评：沪指半日涨0.35% 互联网电商板块涨幅居前

Market Overview - The three major indices in the A-share market opened higher today, with the Shanghai Composite Index at 3779.52 points, up 0.35%, the Shenzhen Component Index at 11980.08 points, up 0.45%, and the ChiNext Index at 2613.08 points, up 0.21% [1] Sector Performance - The top-performing sectors included: - Oil and gas extraction and services, with a gain of 2.63% and a total trading volume of 784.84 million hands, net inflow of 10.96 billion [2] - Internet e-commerce, up 2.18%, with a trading volume of 637.67 million hands and net inflow of 7.09 billion [2] - Beauty care, increasing by 1.70%, with a trading volume of 273.47 million hands and net inflow of 1.92 billion [2] - Planting and forestry, up 1.64%, with a trading volume of 935.49 million hands and net inflow of 5.68 billion [2] - The sectors with the largest declines included: - Electronic chemicals, down 1.68%, with a trading volume of 674.50 million hands and a net outflow of 16.47 billion [2] - Electric machinery, down 1.56%, with a trading volume of 578.30 million hands and a net outflow of 19.63 billion [2] - Rubber products, down 1.53%, with a trading volume of 145.22 million hands and a net outflow of 2.85 billion [2] - New materials, down 1.47%, with a trading volume of 603.78 million hands and a net outflow of 13.28 billion [2]