Group 1 - The core point of the article highlights the dramatic stock performance of *ST Guandao, which experienced a "limit down" followed by a "limit up" within the same trading day, marking it as the first stock in the Beijing Stock Exchange history to exhibit such a phenomenon [1] - As of July 31, the stock opened at 6.6 yuan per share and reached a historical low of 2.4 yuan per share on June 23, resulting in a significant rebound with a price increase of 4.1 times from the historical low by the end of July 31 [1] - The company specializes in digital products and services for industrial enterprises, as well as digital talent training and research innovation platform services [1] Group 2 - The company is facing a delisting risk warning due to an "unable to express opinion" audit opinion on its 2024 annual report, which is set to take effect on April 29, 2025 [1]

Group 1 - The stock market saw significant trading activity with a total turnover of 1.11 trillion yuan, a decrease of 120.7 billion yuan compared to the previous trading day [2] - Several sectors experienced gains, including PEEK materials, electricity, pet economy, vitamins, and banking, while sectors like newly listed stocks, software development, and cloud computing faced declines [2] - Notable high-performing stocks included Guofang Group, which achieved a 10.04% increase and recorded 13 trading days with gains [2][3] Group 2 - The top three net buying stocks on the Dragon and Tiger list were Hailian Jinhui, Qingdao Jinwang, and Shuangcheng Pharmaceutical, with net purchases of 201 million yuan, 115 million yuan, and 112 million yuan respectively [4] - The top three net selling stocks were Huaxi Energy, Tianyouwei, and Xianda Co., with net sales of 135 million yuan, 82.5 million yuan, and 78.9 million yuan respectively [5] - Hailian Jinhui's stock surged by 9.95%, with a turnover rate of 37.27% and a total transaction volume of 3.876 billion yuan [7] Group 3 - Qingdao Jinwang's stock rose by 2.24%, with a turnover rate of 57.39% and a total transaction volume of 3.639 billion yuan, while institutional investors net bought 236 million yuan [12] - Shuangcheng Pharmaceutical's stock saw a significant increase, with a turnover rate of 23.40% and a total transaction volume of 936 million yuan, despite a net sell-off by institutional investors [15] - The stock of Yufu Co. increased by 9.95%, with a turnover rate of 17.60% and a total transaction volume of 1.419 billion yuan, while institutional investors net sold 18.5 million yuan [19]