今日收评：沪指跌0.26%，存储芯片概念大涨

Market Performance - The three major indices experienced a rise in the early session but retreated by the close, with the Shanghai Composite Index down 0.26% at 4101.91 points, the Shenzhen Component down 0.18%, and the ChiNext Index down 0.20% [1] Sector Highlights - The storage chip sector saw significant gains, with Jin Tai Yang hitting a 20% limit up, and stocks like Baiwei Storage and Jiangbolong reaching historical highs [1] - The ultra-high voltage concept also surged, with multiple stocks such as Electric Science Institute and Hancable hitting the limit up [1] - The humanoid robot sector strengthened, with Henghui Security achieving a 20% limit up [1] - The semiconductor sector experienced a strong rally, with Tianyue Advanced hitting the limit up [1] - Other notable sectors with strong performance included CPO concept, AI glasses, lithography machine concept, and the automotive sector [1] Declining Sectors - The AI marketing sector faced significant declines, with companies like Shenguang Group hitting the limit down [1] - The media and entertainment, internet, tourism, oil, and insurance sectors were among those with the largest declines [1] Market Activity - The total market turnover exceeded 3 trillion yuan, showing a slight increase compared to the previous trading day, with over 2300 stocks rising [1] Technical Indicators - A MACD golden cross signal has formed, indicating positive momentum for certain stocks [1]