百亿级债券ETF持续扩容

Group 1 - The core viewpoint of the articles highlights the rapid growth of bond ETFs in the market, with the total scale reaching nearly 540 billion yuan, marking a historical high [1][2] - The number of bond ETFs has increased from 21 at the end of last year to 39 as of August 14, with total assets rising from approximately 179.99 billion yuan to 538.2 billion yuan, nearly doubling in size [2] - The emergence of the first batch of science and technology innovation bond ETFs has been a significant highlight, with their total issuance scale reaching 289.88 billion yuan and growing to over 115.79 billion yuan within a month [4][5] Group 2 - The bond ETF market has seen a substantial expansion in the number of funds exceeding 10 billion yuan, with 24 such ETFs now available, compared to only 5 at the end of 2024 [2] - The active trading of science and technology innovation bond ETFs is notable, with significant transaction volumes and turnover rates, indicating strong market interest [4] - The upcoming second batch of science and technology innovation bond ETFs is in preparation, with multiple fund companies working on their submission materials [5]