收评：沪指涨0.39% 贵金属板块走强

Market Overview - The A-share market showed mixed performance with the Shanghai Composite Index closing at 4162.88 points, up by 0.39%, and a total trading volume of 10,723.68 billion yuan [1] - The Shenzhen Component Index closed at 14,495.09 points, down by 0.06%, with a trading volume of 14,156.56 billion yuan [1] - The ChiNext Index ended at 3,310.31 points, down by 1.04%, with a trading volume of 6,627.59 billion yuan [1] Sector Performance Top Gaining Sectors - The small metals sector led the gains with an increase of 7.41%, totaling a trading volume of 1,724.06 million hands and a net inflow of 795.29 million yuan [2] - The precious metals sector rose by 3.32%, with a trading volume of 955.55 million hands and a net inflow of 290.65 million yuan [2] - The power sector increased by 3.25%, with a trading volume of 11,975.10 million hands and a net inflow of 683.57 million yuan [2] Top Losing Sectors - The paper sector experienced a decline of 1.44%, with a trading volume of 674.54 million hands and a net outflow of 4.79 million yuan [2] - The components sector fell by 1.40%, with a trading volume of 1,846.66 million hands and a net outflow of 58.14 million yuan [2] - The electronic chemicals sector decreased by 1.18%, with a trading volume of 990.05 million hands and a net outflow of 23.51 million yuan [2]