午评：沪指半日跌0.16% 医药商业板块涨幅居前

Core Viewpoint - The A-share market experienced fluctuations with the Shanghai Composite Index closing at 4022.89 points, down 0.16%, while the Shenzhen Component and ChiNext Index fell by 1.10% and 1.74% respectively [1] Market Performance - The pharmaceutical retail sector led the gains with a rise of 3.38%, followed by gas and kitchen appliance sectors, which increased by 2.78% and 2.13% respectively [2] - The port and shipping sector also showed positive performance with a 1.92% increase [2] - Conversely, the non-metal materials sector saw the largest decline at -1.77%, followed by semiconductor and electronic chemical sectors, which fell by 1.60% and 1.43% respectively [2] Trading Volume and Net Inflow - The total trading volume for the pharmaceutical retail sector was 590.40 million hands, with a total transaction value of 91.34 billion [2] - The gas sector recorded a trading volume of 889.47 million hands and a transaction value of 63.82 billion, with a net inflow of 3.84 billion [2] - In contrast, the non-metal materials sector had a trading volume of 88.15 million hands and a transaction value of 29.79 billion, with a net outflow of 3.84 billion [2]