收评：沪指跌0.09% 黄金概念持续走强

Market Overview - The Shanghai Composite Index closed at 4132.61 points, down 0.09%, with a trading volume of 14,518.60 billion yuan [1] - The Shenzhen Component Index closed at 14,316.64 points, down 0.85%, with a trading volume of 17,963.43 billion yuan [1] - The ChiNext Index closed at 3,319.15 points, down 0.91%, with a trading volume of 8,384.91 billion yuan [1] Sector Performance - The gold sector showed strong performance, with stocks such as Hunan Gold, Shengda Resources, Sichuan Gold, and China Gold hitting the daily limit [1] - Resource sectors including oil, coal, and gas were active, with stocks like Heshun Petroleum and Intercontinental Oil & Gas also reaching the daily limit [1] - The virus prevention concept saw a surge, with stocks like Maike Biology, Kaipu Biology, Zhijiang Biology, and Hualan Vaccine hitting the daily limit [1] - Other sectors with notable gains included mining, small metals, non-ferrous metals, insurance, fertilizers, securities, and titanium dioxide [1] - Sectors that experienced declines included electric machinery, automotive parts, semiconductors, communication equipment, satellite internet, robotic actuators, and commercial aerospace [1]