债券ETF跟踪：中短端信用债类ETF资金流入

Report Summary 1. Report Investment Rating No information provided regarding the industry investment rating. 2. Core View Last week, the ChinaBond New Composite Index rose 0.02% throughout the week. Short - term and medium - to - long - term pure bond funds increased by 0.05% and 0.07% respectively. The ChinaBond AAA Sci - tech Innovation Bond Index and the Shanghai Stock Exchange Benchmark Market - making Corporate Bond Index rose 0.06% and 0.07% respectively. Bond - type ETFs had a net outflow of 804 million yuan in the past week, with different trends among different types of ETFs [3]. 3. Summary by Related Catalogs 3.1. Fund Flows - As of March 20, 2026, bond - type ETFs had a net outflow of 804 million yuan in the past week. Interest - rate, credit, and convertible - bond ETFs had net outflows of 1.577 billion yuan, a net inflow of 5.35 billion yuan, and a net outflow of 4.577 billion yuan respectively. In credit - type ETFs, short - term financing, corporate bonds, and urban investment bonds had net inflows of 5.262 billion yuan, 158 million yuan, and 1.574 billion yuan respectively, while market - making credit bonds and sci - tech innovation bonds had net outflows of 535 million yuan and 1.11 billion yuan respectively. Since 2025, interest - rate, credit, and convertible - bond ETFs have had cumulative net inflows of 50.908 billion yuan, 470.265 billion yuan, and 30.175 billion yuan respectively, totaling 551.349 billion yuan [5]. 3.2. Net Value Performance - As of March 20, 2026, the net value trends of various types of bond ETF products were divergent. The 30 - year Treasury Bond ETF performed weakly, falling 0.28% throughout the week, while the China Development Bank Bond ETF and the Treasury Bond ETF Orient Fortune rose 0.08% and 0.07% respectively. The convertible - bond ETF and the Shanghai Stock Exchange Convertible - Bond ETF fell 3.06% and 2.96% respectively last week [6]. 3.3. Credit - Bond ETF and Sci - Tech Innovation Bond ETF Performance - As of March 20, 2026, the median net asset values per unit of credit - bond ETFs and sci - tech innovation bond ETFs were 1.0184 and 1.0060 respectively, both rising 0.06% throughout the week. Among credit - bond ETFs, the E Fund Corporate Bond ETF performed relatively well, rising 0.08% throughout the week. Among sci - tech innovation bond ETFs, the ICBC Sci - Tech Innovation Bond ETF and the Yongying Sci - Tech Innovation Bond ETF performed relatively well. As of March 20, 2026, the median discount rate of credit - bond ETFs was 7 basis points, and that of sci - tech innovation bond ETFs was 9 basis points [7]. 3.4. Credit - Type ETF Duration Tracking - As of March 20, 2026, the holding durations of short - term financing ETFs, corporate bond ETFs, and urban investment bond ETFs were 0.29 years, 2.02 years, and 2.06 years respectively. Among market - making credit - bond ETFs, the median holding durations of products tracking the Shanghai Market - making Corporate Bond Index and the Shenzhen Market - making Corporate Bond Index were 3.45 years and 2.81 years respectively. Among sci - tech innovation bond ETFs, the median holding durations of products tracking the AAA Sci - Tech Innovation Bond Index, the Shanghai AAA Sci - Tech Innovation Bond Index, and the Shenzhen AAA Sci - Tech Innovation Bond Index were 3.26 years, 3.21 years, and 3.10 years respectively [8].