午评：沪指涨0.49% 贵金属板块延续强势

Market Overview - The three major indices opened higher, with the Shanghai Composite Index at 4160.01 points, up 0.49%, the Shenzhen Component Index at 14342.74 points, up 0.09%, and the ChiNext Index at 3330.39 points, down 0.37% [1] Sector Performance - The precious metals, oil and gas extraction and services, and industrial metals sectors showed the highest gains, while photovoltaic equipment, medical services, and automation equipment sectors experienced the largest declines [1] Top Gaining Sectors - Precious Metals: Increased by 10.26% with a total trading volume of 1,114.29 million hands and a total transaction amount of 356.92 billion [1] - Oil and Gas Extraction and Services: Rose by 8.19% with a trading volume of 2,291.92 million hands and a transaction amount of 180.98 billion [1] - Industrial Metals: Gained 5.99% with a trading volume of 6,988.04 million hands and a transaction amount of 1,106.11 billion [1] Top Declining Sectors - Photovoltaic Equipment: Decreased by 2.84% with a trading volume of 3,205.20 million hands and a transaction amount of 640.76 billion [1] - Medical Services: Fell by 2.17% with a trading volume of 699.52 million hands and a transaction amount of 132.01 billion [1] - Automation Equipment: Dropped by 2.06% with a trading volume of 539.26 million hands and a transaction amount of 230.69 billion [1]