Group 1 - On September 26, a total of 27 stocks were involved with institutional investors, with 13 showing net buying and 14 showing net selling [1] - The top three stocks with the highest net buying by institutions were Zhongdian Xinlong (97.06 million), Huazi Technology (80.89 million), and Beijiete (73.28 million) [1][2] - The top three stocks with the highest net selling by institutions were Jinghe Integration (108.70 million), Xidian Co. (107.61 million), and Beifang Changlong (72.42 million) [1][3] Group 2 - Zhongdian Xinlong experienced a price drop of 6.74% while Huazi Technology saw an increase of 15.44% [2] - Other notable stocks with significant net buying included Lihexing (67.95 million) and Chengfei Integration (62.40 million) [2] - Stocks with significant net selling included Guojijinggong (-10.00%) and Zhongchao Holdings (-6.64%) [3]

Core Insights - On September 15, a total of 32 stocks were involved with institutional investors, with 12 stocks showing net buying and 20 stocks showing net selling [1]. Group 1: Institutional Net Buying - The top three stocks with the highest net buying by institutions were: - Zhongke Shuguang with a net buying amount of 2.08 billion yuan and a price increase of 4.58% [2]. - Cambridge Technology with a net buying amount of 338.43 million yuan and a price increase of 7.40% [2]. - Xinghui Entertainment with a net buying amount of 87.82 million yuan and a price increase of 20.00% [2]. Group 2: Institutional Net Selling - The top three stocks with the highest net selling by institutions were: - Weichai Heavy Machine with a net outflow of 2.85 billion yuan and a price decrease of 7.86% [1]. - Shengbang Technology with a net outflow of 2.18 billion yuan and a price increase of 20.00% [1]. - Shangtai Technology with a net outflow of 2.07 billion yuan and a price increase of 10.00% [1].

Summary of Key Points Core Viewpoint - On August 20, institutional investors showed significant activity in the stock market, with a total of 45 stocks being involved, where 23 stocks experienced net buying and 22 stocks faced net selling [1][2]. Institutional Net Buying - The top three stocks with the highest net buying by institutions were: - Liou Co., Ltd. with a net buying amount of 471.2 million yuan, representing a 3.89% increase [2][1]. - Lingyi Technology with a net buying amount of 181.7 million yuan, reflecting a 7.03% increase [2][1]. - Jiu Gui Jiu with a net buying amount of 165.6 million yuan, showing a 10.00% increase [2][1]. Institutional Net Selling - The top three stocks with the highest net selling by institutions were: - Aiwei Electronics with a net outflow of 108 million yuan [1]. - Ying Shi Innovation with a net outflow of 98.2 million yuan [1]. - Guangdong Construction with a net outflow of 93.8 million yuan [1].