收评：沪指下跌0.37% 零售板块拉升

Market Overview - The Shanghai Composite Index closed at 3909.52 points, down 0.37%, with a trading volume of 781.16 billion [1] - The Shenzhen Component Index closed at 13277.36 points, down 0.39%, with a trading volume of 1122.79 billion [1] - The ChiNext Index closed at 3209.60 points, up 0.61%, with a trading volume of 528.11 billion [1] Sector Performance - Sectors such as non-ferrous metals, coal, insurance, real estate, steel, oil, pharmaceuticals, and brokerage firms experienced declines [1] - Conversely, the food and beverage, and retail sectors showed resilience and increased in value [1] - CPO concept stocks and local stocks from Fujian province were notably active [1]