午评：沪指涨0.05% 油气开采及服务板块涨幅居前

Core Viewpoint - The A-share market showed mixed performance with the Shanghai Composite Index slightly up by 0.05%, while the Shenzhen Component and ChiNext indices experienced declines of 1.06% and 1.37% respectively [1] Market Performance - As of the midday close, the Shanghai Composite Index stood at 3956.72 points, the Shenzhen Component at 13237.03 points, and the ChiNext at 3143.95 points [1] - The oil and gas extraction and services sector led the gainers, while sectors such as batteries, energy metals, and minor metals faced significant declines [1] Sector Performance - The top-performing sectors included: - Oil and gas extraction and services: +2.62% with a total trading volume of 1,096.61 million hands and a net inflow of 6.403 billion [2] - Agriculture and forestry: +2.08% with a trading volume of 630.88 million hands and a net inflow of 0.458 billion [2] - Coal mining and processing: +1.98% with a trading volume of 1,360.60 million hands and a net inflow of 1.287 billion [2] - The sectors with the largest declines included: - Batteries: -2.97% with a trading volume of 2,284.57 million hands and a net outflow of 6.945 billion [2] - Energy metals: -2.37% with a trading volume of 365.64 million hands and a net outflow of 1.459 billion [2] - Minor metals: -2.22% with a trading volume of 691.18 million hands and a net outflow of 2.689 billion [2]