固定收益点评：大幅增加久期——债基2025Q2季报分析

Group 1: Fund Size and Growth - The total net asset value of four types of bond funds reached 9.26 trillion yuan in Q2 2025, an increase of 561.7 billion yuan compared to the previous quarter[14] - The medium- and long-term pure bond funds grew by 269.2 billion yuan to 6.46 trillion yuan, while short-term pure bond funds increased by 172.4 billion yuan to 1.14 trillion yuan[14] - The net asset values of primary and secondary bond funds were 850.2 billion yuan and 807.7 billion yuan, respectively, with increases of 81.6 billion yuan and 38.5 billion yuan from the previous quarter[14] Group 2: Asset Allocation and Bond Holdings - Bond positions increased significantly, with a net purchase of 800.7 billion yuan in Q2 2025 after a reduction of 458.4 billion yuan in Q1[21] - The market value of bonds held by medium- and long-term pure bond funds was 7.76 trillion yuan, while short-term pure bond funds held 1.28 trillion yuan, reflecting increases of 396.2 billion yuan and 224.7 billion yuan, respectively[21] - The proportion of bond holdings in total assets for the four types of bond funds increased, with medium- and long-term pure bond funds at 97.75% and short-term pure bond funds at 97.81%[21] Group 3: Leverage and Duration - The average leverage ratios for medium- and long-term pure bond funds, short-term pure bond funds, primary bond funds, and secondary bond funds were 120%, 114%, 117%, and 114%, respectively, showing increases from the previous quarter[26] - The average duration of medium- and long-term interest rate bond funds rose by 0.81 years to 4.23 years, while medium- and long-term credit bond funds increased by 0.94 years to 3.42 years, marking the largest single-period increase on record[6] Group 4: Credit Quality and Composition - The proportion of high-rated credit bonds increased, with AAA-rated bonds in medium- and long-term pure bond funds rising by 1.23 percentage points to 96.10%[59] - The market value of credit bonds held by medium- and long-term pure bond funds was 3.70 trillion yuan, with an increase of 206.2 billion yuan, while short-term pure bond funds held 1.1 trillion yuan in credit bonds, reflecting an increase of 184.7 billion yuan[40]