A股收评：三大指数小幅上涨，全市场成交额仅1.66万亿元，深圳、煤炭板块爆发

Market Overview - The three major A-share indices experienced fluctuations in early trading but rallied to close in the green, with the Shanghai Composite Index up 0.22% at 3922 points, the Shenzhen Component Index up 0.22%, and the ChiNext Index up 0.09% [1] - The total market turnover was 1.66 trillion yuan, a decrease of 29.5 billion yuan compared to the previous trading day, with nearly 3000 stocks rising [1] Sector Performance - The Shenzhen local stocks surged following the issuance of a high-quality development action plan for mergers and acquisitions, with stocks like Shenzhen Saiseg and Shenzhen Water Planning Institute hitting the daily limit [1] - The coal sector saw significant gains, with Shanxi Coking Coal, Dayou Energy, and Zhengzhou Coal Electricity also reaching the daily limit [1] - Quantum technology stocks strengthened due to Google's breakthrough in quantum computing, with Keda National Innovation hitting the daily limit [1] - The mining concept stocks rose, with Shengxin Lithium Energy hitting the daily limit [1] - Other sectors that performed well included superconducting concepts, short drama concepts, and cultural media [1] Declining Sectors - The superhard materials and cultivated diamond sectors faced declines, with Huifeng Diamond dropping over 13% [1] - The engineering machinery sector also fell, with Construction Machinery down over 8% [1] - The CPO concept weakened, with Tianfu Communication leading the decline [1] - Non-metallic materials, biological products, and mining industries were among the sectors with the largest declines [1] Top Gainers - The top gainers included sectors such as petrochemicals, fertilizers and pesticides, and coal, with respective increases of 2.70%, 1.74%, and 1.97% [2] - Other sectors with notable gains included oil and natural gas, ports, and comprehensive categories, with increases of 1.60%, 1.72%, and 1.519% respectively [2]