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债市机构行为周报(9月第3周):当前债市的两个“确定性”-20250921
Huaan Securities·2025-09-21 08:18
  1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The bond market yield curve remained steep this week, with the 10Y maturity yield fluctuating around 1.85% and the 1Y Treasury bond maturity yield at 1.40%. The term spreads of 30Y - 10Y and 10Y CDB - 10Y Treasury bonds widened, and the curve steepening continued [3][11]. - There are two "certainties" in the current bond market. First, driven by large - banks' continuous buying of short - term bonds, the short - end is more stable, and the expectation of the central bank buying bonds in the fourth quarter is rising. Second, the anti - decline of credit bonds is expected to continue under the loose funds [3][12]. 3. Summary According to the Directory 3.1 This Week's Institutional Behavior Review: Two "Certainties" in the Bond Market 3.1.1 Yield Curve - Treasury bond yields generally increased. The 1Y yield decreased by 1bp, while the 3Y, 5Y, 7Y, 10Y, 15Y, and 30Y yields increased by about 1bp, 1bp, 5bp, 1bp, 2bp, and 2bp respectively. For CDB bonds, short - end yields increased, and mid - end yields decreased. The 1Y yield increased by 5bp, the 3Y yield increased by 4bp, and the 5Y yield decreased by about 3bp [14]. 3.1.2 Term Spreads - For Treasury bonds, the interest rate spread inversion deepened, and the long - end spreads narrowed. For CDB bonds, the interest rate spread inversion deepened, and the short - end spreads narrowed [16][17]. 3.2 Bond Market Leverage and Funding Situation 3.2.1 Leverage Ratio - From September 15 to September 19, 2025, the leverage ratio decreased weekly. As of September 19, it was about 106.91%, down 0.12pct from last Friday and 0.17pct from Monday [21]. 3.2.2 Average Daily Turnover of Pledged Repurchase - From September 15 to September 19, the average daily turnover of pledged repurchase was about 7.2 trillion yuan, a decrease of 0.33 trillion yuan from last week. The average daily overnight turnover accounted for 87.64%, a decrease of 0.79pct [27][28]. 3.2.3 Funding Situation - From September 15 to September 19, bank - related funds' net lending first decreased and then increased. The main funds' borrowers were securities firms, and money market funds' net lending increased fluctuantly. DR007 and R007 first increased and then decreased. 1YFR007 and 5YFR007 increased fluctuantly [32][33]. 3.3 Duration of Medium - and Long - Term Bond Funds 3.3.1 Median Duration - This week (September 15 - September 19), the median duration of medium - and long - term bond funds was 2.68 years (de - leveraged) and 2.8 years (leveraged). On September 19, the de - leveraged median duration decreased by 0.01 years compared with last Friday, and the leveraged median duration increased by 0.02 years [44]. 3.3.2 Duration by Bond Fund Type - The median duration of interest - rate bond funds (leveraged) decreased to 3.55 years, down 0.12 years from last Friday. The median duration of credit bond funds (leveraged) increased to 2.51 years, up 0.03 years from last Friday [47]. 3.4 Comparison of Category Strategies 3.4.1 Sino - US Yield Spread - The short - end spread widened, and the medium - and long - end spread narrowed. The 1Y, 2Y, and 3Y spreads widened by 5bp, 5bp, and about 3bp respectively, while the 5Y, 7Y, 10Y, and 30Y spreads narrowed [52]. 3.4.2 Implied Tax Rate - The short - end implied tax rate widened, and the mid - end narrowed. As of September 19, the 1Y, 3Y, and 30Y spreads of CDB - Treasury bonds widened, while the 5Y, 7Y, 10Y, and 15Y spreads narrowed [53]. 3.5 Changes in Bond Lending Balance - On September 19, the lending concentration of the second - most active 10Y CDB bond increased, while that of the active 10Y Treasury bond, the second - most active 10Y Treasury bond, the active 10Y CDB bond, and the active 30Y Treasury bond decreased. Except for large banks, all other institutions saw a decline [54].