经历上半月的债市震荡后，近期债券ETF市场出现积极变化。数据显示，截至12月24日，全市场35只信 用债ETF，本周三个交易日内共有资金流入377.06亿元，为上周流入额的两倍。资金流入带来信用债 ETF的流动性改善，其中"吸金"能力强的科创债ETF和做市信用债ETF贴水收敛，净值上涨明显。 Choice数据显示，12月24日，科创债ETF广发（511120.SH）和信用债ETF广发（159397.SZ）净值分别 增长0.18%和0.17%，在35只信用债ETF中位居前二。与此同时，贴水率分别从上一交易日的0.24%收 敛至0.10%，0.28%收敛至0.13%，本周资金净流入3.93亿元和2.93亿元。 在众多产品中，今年推出的基准做市信用债ETF和科创债ETF无疑是最为资金所关注的。作为首批基准 做市信用债ETF，信用债ETF广发（159397.SZ）跟踪的是深证基准做市信用债指数，该指数以深交所 基准做市债券清单范围内的信用债建立样本。 而同样是科创债ETF中首批的科创债ETF广发（511120.SH），跟踪上证AAA科技创新公司债指数，从 上交所上市的科技创新公司债中，选取主体评级AAA，隐含评级AA ...

Group 1 - The credit bond ETF market has experienced explosive growth, with the total market size surpassing 200 billion yuan, accounting for nearly 57% of the total bond ETF market [1] - The first batch of 8 credit bond ETFs launched at the beginning of the year has laid the foundation for scale expansion, with their total size exceeding 116.2 billion yuan, growing over 5 times since their listing [1] - Following the approval for these ETFs to participate in general pledge-style repurchase transactions, their trading volume surged to 52.6 billion yuan on June 6, marking a 65% increase from the previous trading day [1] Group 2 - The largest credit bond ETF is managed by Huaxia Fund, which is the only fund to exceed 20 billion yuan in size, while the company bond ETFs from E Fund and Southern Fund follow closely, both surpassing 18 billion yuan [2] - The Southern Fund's company bond ETF recorded an average daily trading volume of 10.8 billion yuan since June 6, while the Hai Fu Tong credit bond ETF had the highest turnover rate, approaching 80% [2] Group 3 - Looking ahead to the second half of the year, the credit bond's coupon value is seen as certain amidst a volatile market, although there may be short-term mismatches in supply and demand [3] - The benchmark market-making credit bond ETFs are considered to have a higher cost-performance ratio, with observable returns and controllable risks, making them a reliable investment choice supported by policy [3]