流动性和机构行为周度观察：跨季阶段资金面波动，央行精准投放流动性-20250929

Report Summary 1. Report Industry Investment Rating No industry investment rating information is provided in the report. 2. Core Viewpoints - From September 22 - 26, 2025, the central bank net - withdrew funds through 7 - day reverse repurchase and conducted 14 - day reverse repurchase operations during the quarter - end period. MLF was incrementally renewed. The inter - bank funding market fluctuated significantly due to the quarter - end effect [2][6]. - The net payment scale of government bonds decreased from September 22 - 28, 2025, and the majority of inter - bank certificate of deposit (NCD) yields rose. The net financing of NCDs turned negative. The average leverage ratio of the inter - bank bond market increased, and the durations of medium - long - term and short - term interest - style pure bond funds both marginally increased [2][8][9]. 3. Summary by Sections 3.1 Funding Market - Central Bank Operations: From September 22 - 26, 2025, the central bank's 7 - day reverse repurchase had a net withdrawal of 2594 billion yuan, 14 - day reverse repurchase was 9000 billion yuan, and MLF had a net injection of 3000 billion yuan. On September 29 and 30, 7 - day reverse repurchases totaling 5166 billion yuan were due, and on October 9, 7 - day reverse repurchases of 12325 billion yuan and 14 - day reverse repurchases of 3000 billion yuan were due [6]. - Funding Rate Fluctuations: From September 22 - 26, 2025, the average values of DR001 and R001 decreased by 5.0 and 5.5 basis points respectively compared to September 15 - 19, while the average values of DR007 and R007 increased by 1.9 and 9.9 basis points respectively. The funding market loosened from September 22 - 23, fluctuated significantly from September 24 - 25, and the funding rate dropped significantly on September 26 [7]. - Government Bond Net Payment: From September 22 - 28, 2025, the net payment of government bonds was about 716 billion yuan, a decrease of about 3764 billion yuan compared to September 15 - 21. From September 29 - 30, the expected net payment was 2121 billion yuan [7]. 3.2 Inter - bank Certificate of Deposits - Yield Changes: As of September 26, 2025, the yields of 1M, 3M, and 1Y NCDs increased by 7.5, 1.0, and 1.0 basis points respectively compared to September 19 [8]. - Net Financing: From September 22 - 28, 2025, the net financing of NCDs was about - 1782 billion yuan, turning negative from 1295 billion yuan in September 15 - 21. The expected maturity repayment from September 29 - October 5 was 1688 billion yuan, and the expected maturity in October was 18443 billion yuan, significantly lower than 35470 billion yuan in September [8]. 3.3 Institutional Behavior - Leverage Ratio: From September 22 - 26, 2025, the average leverage ratio of the inter - bank bond market was 107.65%, up from 107.32% in September 15 - 19 [9]. - Bond Fund Duration: On September 26, 2025, the median duration (MA5) of medium - long - term interest - style pure bond funds was 4.05 years, up 0.01 years week - on - week, at the 59.2% quantile since early 2022. The median duration (MA5) of short - term interest - style pure bond funds was 1.58 years, up 0.03 years week - on - week, at the 14.1% quantile since early 2022 [9].