收评：沪指跌0.39% 非金属材料板块强势

Core Points - The A-share market indices continued to decline in the afternoon session, with the Shanghai Composite Index closing at 4002.76 points, down 0.39% [1] - The Shenzhen Component Index closed at 13289.01 points, down 1.03%, while the ChiNext Index closed at 3134.32 points, down 1.40% [1] Market Performance - The total trading volume for the Shanghai Composite Index was 858.36 billion, while the Shenzhen Component Index had a trading volume of 1135.22 billion, and the ChiNext Index recorded 506.69 billion [1] - The sectors that performed well included photovoltaic equipment, non-metallic materials, and chemical raw materials, with gains of 2.32%, 2.30%, and 2.09% respectively [2] - Conversely, sectors that saw declines included insurance, components, and software development, with losses of 1.58%, 1.31%, and 1.11% respectively [2] Sector Analysis - The photovoltaic equipment sector had a total trading volume of 392.26 million hands and a net inflow of 80.68 billion [2] - The non-metallic materials sector recorded a total trading volume of 20.24 million hands with a net inflow of 6.74 billion [2] - The chemical raw materials sector had a total trading volume of 212.15 million hands and a net inflow of 24.57 billion [2]