午评：沪指半日跌0.22% 电网设备板块涨幅居前

Core Viewpoint - The A-share market experienced a collective decline in the morning session, with the Shanghai Composite Index down by 0.22%, the Shenzhen Component Index down by 0.10%, and the ChiNext Index down by 0.01% [1] Market Performance - The top-performing sectors included: - Power grid equipment with a gain of 2.94% and a total trading volume of 5,532.63 million hands, net inflow of 821.92 million [2] - Semiconductor sector increased by 2.65% with a trading volume of 2,787.39 million hands, net inflow of 1,907.17 million [2] - Engineering machinery rose by 2.54% with a trading volume of 512.63 million hands, net inflow of 90.12 million [2] - The sectors that faced the largest declines included: - Cultural media sector decreased by 5.02% with a trading volume of 3,866.97 million hands, net outflow of 482.04 million [2] - Oil and gas extraction and services fell by 4.36% with a trading volume of 1,255.39 million hands, net outflow of 71.53 million [2] - Film and television industry dropped by 3.62% with a trading volume of 858.62 million hands, net outflow of 75.50 million [2]