流动性和机构行为周度观察：同业存单利率下降，利率债基久期提升-20251104

Report Industry Investment Rating No relevant information provided. Core Viewpoints - From October 27 to October 31, 2025, the central bank made net injections through short - term reverse repurchases, and the MLF had a net injection of 200 billion yuan. The money market faced short - term fluctuations due to tax payment periods and month - end effects. From October 27 to November 2, 2025, the net payment scale of government bonds decreased, the yields of inter - bank certificates of deposit (CDs) declined overall, and the average leverage ratio in the inter - bank bond market decreased slightly. From November 3 to November 9, 2025, the expected net payment of government bonds was - 38.2 billion yuan, and the maturity scale of inter - bank CDs was about 376.9 billion yuan. On October 31, 2025, the median durations of medium - long - term and short - term interest - rate style pure bond funds increased by 0.66 years and 0.20 years respectively on a weekly basis [2]. Summary by Directory 1. Funds - In October, the total net injection of outright reverse repurchases and MLF was 600 billion yuan. The central bank announced the restart of treasury bond trading. From October 27 to October 31, 2025, the central bank's 7 - day reverse repurchase had a net injection of 120.08 billion yuan. In November, 100 billion yuan of outright reverse repurchases and 90 billion yuan of MLF will mature [4]. - Affected by tax payment periods and month - end factors, the money market had short - term and slight fluctuations, but it loosened significantly in the last two days of the month. From October 27 to October 31, 2025, the average values of DR001 and R001 increased by 7.4 and 7.7 basis points respectively compared with October 20 - 24, 2025 [5]. - The net payment scale of government bonds decreased. From October 27 to November 2, 2025, the net payment of government bonds was about 133.72 billion yuan, 80.5 billion yuan less than that of October 20 - 26, 2025. From November 3 to November 9, 2025, the expected net payment of government bonds was - 38.2 billion yuan [6]. 2. Inter - bank Certificates of Deposit - The yields of inter - bank CDs declined overall. As of October 31, 2025, the yields of 1M and 3M inter - bank CDs decreased by 9.0 and 3.5 basis points respectively compared with October 24, 2025, and the yield of 1Y inter - bank CDs decreased by 4.8 basis points [7]. - The net financing of inter - bank CDs remained positive. From October 27 to November 2, 2025, the net financing of inter - bank CDs was about 17.06 billion yuan. The maturity repayment of inter - bank CDs from November 3 to November 9, 2025, is expected to be 376.9 billion yuan. The maturity scale of inter - bank CDs in November is about 2.8 trillion yuan, significantly higher than that in October (1.8 trillion yuan) [7]. 3. Institutional Behavior - The average leverage ratio in the inter - bank bond market decreased slightly. From October 27 to October 31, 2025, the average leverage ratio in the inter - bank bond market was 107.36%, compared with 107.56% from October 20 to October 24, 2025 [8]. - Based on the calculation results, the durations of medium - long - term and short - term interest - rate pure bond funds increased marginally. On October 31, 2025, the median duration of medium - long - term interest - rate style pure bond funds increased by 0.66 years on a weekly basis and was at the 96.5% quantile since early 2022; the median duration of short - term interest - rate style pure bond funds increased by 0.20 years on a weekly basis and was at the 98.7% quantile since early 2022 [8].