收评：沪指微涨0.05% 半导体板块持续走强

Market Overview - The three major A-share indices collectively rose, with the Shanghai Composite Index closing at 4085.77 points, up 0.05%, and a trading volume of 11,974.23 billion yuan [1] - The Shenzhen Component Index closed at 14,030.56 points, up 0.06%, with a trading volume of 16,567.18 billion yuan [1] - The ChiNext Index closed at 3,329.69 points, up 0.31%, with a trading volume of 7,569.99 billion yuan [1] Sector Performance - The semiconductor sector continued to strengthen, with companies like Chipone Technology and Hengkun New Materials hitting the 20% daily limit [1] - The rare earth permanent magnet concept was active throughout the day, with Tongcheng New Materials reaching the daily limit [1] - The coal sector saw a surge in the afternoon, with Dayou Energy and Shaanxi Black Cat also hitting the daily limit [1] - Other sectors with notable gains included electronic chemicals, minor metals, tourism and hotels, insurance, photolithography machines, storage chips, and controllable nuclear fusion concepts [1] - Sectors that experienced declines included shipbuilding, education, securities, precious metals, aerospace, oil, titanium dioxide, and brain engineering concepts [1]