午评：沪指涨0.2% 全市场超4200只个股下跌

Market Performance - A-shares showed mixed performance with the Shanghai Composite Index up by 0.2% while the Shenzhen Component Index and the ChiNext Index fell by 0.15% and 0.23% respectively [1] - The total market turnover reached 1.43 trillion yuan, with over 4,200 stocks declining [1] Sector Performance - Insurance stocks performed strongly, with China Pacific Insurance rising over 4% [1] - GPU concept stocks surged, with Cambricon Technologies increasing by over 9%, reaching a new high [1] - Sectors such as brain engineering, digital currency, servers, and financial technology saw significant gains [1] - Conversely, sectors like CPO, circuit boards, and cultivated diamonds experienced notable declines [1]