Group 1 - The stock of Guanlong Energy fell by 9.77% and reached the trading limit with a daily turnover rate of 30%, indicating significant selling pressure from well-known speculators [1] - The top five buying entities collectively purchased 46.3152 million yuan, while the top five selling entities sold 44.4668 million yuan, resulting in a net inflow of 1.8484 million yuan [2] - Institutional investors were prominent in both buying and selling activities, with specific amounts indicating a mixed sentiment towards the stock [2][3] Group 2 - The largest buying entity was an institutional investor, which bought 10.5365 million yuan and sold 7.1796 million yuan, resulting in a net purchase of 3.3569 million yuan [3] - China International Capital Corporation's Shanghai branch and Ping An Securities' Shenzhen branch also showed strong buying interest, with net purchases of 6.0518 million yuan and 5.4221 million yuan respectively [3] - On the selling side, the largest selling entity was again an institutional investor, which sold 16.2682 million yuan, leading to a significant net outflow of 15.1297 million yuan [3]