午报：沪指半日涨0.35% 数字货币概念股集体大涨

Market Overview - The market experienced fluctuations with the Shanghai Composite Index slightly rising and the ChiNext Index rebounding after hitting a low [2] - The total trading volume in the Shanghai and Shenzhen markets reached 1.57 trillion yuan by midday [2] Index Performance - By the close of the morning session, the Shanghai Composite Index increased by 0.35%, the Shenzhen Component Index rose by 0.45%, and the ChiNext Index gained 0.21% [2] Sector Highlights - Digital currency stocks saw a collective surge, with multiple stocks, including Yuyin Co., hitting the daily limit [2] - Oil and gas stocks showed strong performance, with Zhun Oil Co. also reaching the daily limit [2] - Storage chip concept stocks were partially active, with Zhaoyi Innovation hitting the daily limit [2] Declining Sectors - AI hardware stocks, particularly liquid cooling servers, experienced significant declines, with Feilong Co. hitting the daily limit down [2] - The sectors with the highest gains included digital currency, oil and gas, software development, and beauty care, while the sectors with the largest declines included liquid cooling servers, PCB, PEEK materials, and rare earth permanent magnets [2]