On the morning of April 28th, the A-share market witnessed some fluctuations and adjustments. During the trading session, both the GEM Index and the Shenzhen Component Index registered declines exceeding 1%. As the market closed at midday, the Shanghai Composite Index reported a marginal dip of 0.07%, while the Shenzhen Component Index saw a 0.41% fall, and the GEM Index dropped by 0.54%. The morning trading volume on the Shanghai and Shenzhen stock exchanges totaled 1.66 trillion yuan, marking a 39.6 billion yuan decrease from the previous trading day. Across the market, over 3,700 stocks ended in the red. From a sectoral perspective, pharmaceuticals, computing power leasing, computing power chips, and copper foil concepts emerged as strong performers, with several stocks surging to their daily limits. Conversely, the tourism and hotel sectors underwent collective corrections, and the non-ferrous metals sector displayed signs of weakness.