午评：沪指半日涨0.2% 全市场超4200只个股下跌

Market Overview - The market experienced a mixed performance with the Shanghai Composite Index briefly surpassing 3700 points before retreating [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.41 trillion, an increase of 101.2 billion compared to the previous trading day [1] - By the end of the trading session, the Shanghai Composite Index rose by 0.2%, while the Shenzhen Component Index and the ChiNext Index fell by 0.15% and 0.23% respectively [1] Sector Performance - The insurance, digital currency, brain-computer interface, and securities sectors showed notable gains, while military, CPO, Xinjiang, and copper foil sectors faced declines [2] - Major financial stocks, including brokerages and insurance companies, demonstrated strong fluctuations, with Longcheng Securities hitting the daily limit [2] - Digital currency concept stocks were active, with Jingbeifang reaching the daily limit, and brain-computer interface stocks also showed strength, exemplified by Innovation Medical achieving five consecutive daily limits [2] - In contrast, AI hardware stocks underwent adjustments, with companies like Dongshan Precision experiencing declines of over 5% [2] Trading Metrics - The limit-up rate was recorded at 58.00%, with 34 stocks hitting the limit and 25 stocks touching it [4] - The performance of stocks that hit the limit yesterday was 0.69%, with a high opening rate of 73% and a profit rate of 57% [4]