传媒ETF：8月21日融资净买入71.75万元，连续3日累计净买入203.96万元

Group 1 - The core point of the news is the recent performance of the Media ETF (512980), which has seen a net buying trend in financing activities over the past few trading days [1][4]. - On August 21, the financing buy-in amounted to 8.4722 million yuan, while the financing repayment was 7.7548 million yuan, resulting in a net financing purchase of 717,500 yuan [1]. - The financing balance reached 32.2079 million yuan, with a cumulative net buying of 2.0396 million yuan over the last three trading days [1][4]. Group 2 - In the last 20 trading days, there were 11 days with net financing purchases, indicating a positive sentiment among investors [1]. - The margin trading balance on August 21 was 37.8303 million yuan, reflecting an increase of 2.04% from the previous day [4]. - The margin trading balance has shown a consistent upward trend, with notable increases in previous trading days, such as a 14.15% rise on August 15 [4]. Group 3 - On the same day, the short selling activity recorded a net sell of 52,100 shares, with a total short selling balance of 5.9184 million shares [2]. - In the last 20 trading days, there were also 11 days with net short selling, suggesting a mixed sentiment in the market [2]. - The short selling balance has fluctuated, with a notable net sell of 21,740 shares on August 15 [3].