天际股份：8月21日融资净买入487.89万元，连续3日累计净买入758.23万元

Group 1 - Tianji Co., Ltd. (002759) reported a financing buy-in of 37.53 million yuan and a financing repayment of 32.65 million yuan on August 21, resulting in a net financing buy of 4.88 million yuan and a financing balance of 135 million yuan [1] - Over the past three trading days, the cumulative net buy has reached 7.58 million yuan [1] - The financing balance on August 21 accounted for 2.64% of the circulating market value [2] Group 2 - On August 21, the margin trading balance was 135 million yuan, reflecting an increase of 3.76% from the previous day [4] - The margin trading balance has shown a consistent upward trend over the past few trading days, with notable increases on August 18 and August 19 [4] - The margin trading activity included a short selling of 400 shares on August 21, with a remaining short selling balance of 7,400 shares [3]