通润装备：8月4日融资净买入270.24万元，连续3日累计净买入894.67万元

Group 1 - On August 4, Tongrun Equipment (002150) had a financing buy-in of 17.5375 million yuan and a financing repayment of 14.835 million yuan, resulting in a net financing buy of 2.7024 million yuan, with a financing balance of 142 million yuan [1] - Over the past three trading days, the cumulative net buy has reached 8.9467 million yuan [1] - The financing balance on August 4 accounted for 3.18% of the circulating market value [2] Group 2 - The total margin trading balance on August 4 was 142 million yuan, reflecting an increase of 1.93% from the previous day [3] - The margin trading balance has shown fluctuations over the past few days, with notable increases on August 1 and July 31, and a decrease on July 30 [3] - No short selling transactions were recorded on August 4 [2]