A股午评：沪指小幅冲高后回落 游戏、可控核聚变板块走强

Core Viewpoint - A-shares experienced a slight increase followed by a decline, with the gaming and controllable nuclear fusion sectors showing strength [1] Market Performance - The three major A-share indices opened slightly lower, with the Shanghai Composite Index rising nearly 0.5% at one point before retreating [1] - As of the midday session, the Shanghai Composite Index fell by 0.30%, the Shenzhen Component Index decreased by 0.71%, and the ChiNext Index dropped by 1.28% [1] - The North Star 50 Index saw a slight increase of 0.11% [1] Sector Performance - Leading sectors included gaming, controllable nuclear fusion, and airport shipping [1] - Underperforming sectors included chemical pharmaceuticals, CRO concepts, and complete automobiles [1] Trading Volume - Nearly 2,500 stocks declined across the two markets, with a total trading volume exceeding 640 billion yuan during the half-day session [1]