流动性和机构行为周度观察：央行中长期流动性投放积极，存单供给缩量-20250916

Report Industry Investment Rating - No relevant content provided Core Viewpoints of the Report - From September 8 - 12, 2025, the central bank had a net injection of funds through 7 - day reverse repos, and conducted a 600 - billion - yuan 6M outright reverse repo operation on September 15. The weekly average of the inter - bank bond market leverage ratio decreased. The net contribution of government bonds increased, and most of the maturity yields of inter - bank certificates of deposit (NCDs) rose. The money market rate increased marginally, with a tight - then - loose pattern during the week. From September 15 - 21, 2025, the expected net contribution of government bonds is 397.55 billion yuan, and the maturity scale of NCDs is about 850.1 billion yuan [2]. Summary by Relevant Catalogs 1. Money Market - Central Bank's Fund Injection: From September 8 - 12, 2025, the central bank's 7 - day reverse repo had a net injection of 196.1 billion yuan. On September 15, a 600 - billion - yuan 6M outright reverse repo operation was carried out, with a net injection of 30 billion yuan for the month. By conducting outright reverse repos and MLF operations in different periods of the month, it helps maintain reasonable and sufficient liquidity [6]. - Money Market Tightening: From September 8 - 12, 2025, the average values of DR001 and R001 increased by 7.3 and 6.9 basis points respectively compared with September 1 - 5. The average values of DR007 and R007 increased by 2.7 and 2.0 basis points respectively. The money market tightened marginally, and there will still be impacts from tax payments and quarter - end factors in the later period [7]. - Government Bond Net Contribution: From September 8 - 14, 2025, the net contribution of government bonds was about 344.2 billion yuan, an increase of about 222.6 billion yuan compared with September 1 - 7. From September 15 - 21, 2025, the expected net contribution of government bonds is 397.55 billion yuan [7]. 2. Inter - bank Certificates of Deposit (NCDs) - Maturity Yields: As of September 12, 2025, the maturity yields of 1M and 3M NCDs increased by 10.6 and 1.0 basis points respectively compared with September 5, and the 1Y NCD maturity yield increased by 0.5 basis points [8]. - Net Financing: From September 8 - 14, 2025, the net financing of NCDs was about - 468.3 billion yuan. From September 15 - 21, 2025, the expected maturity repayment amount of NCDs is 850.1 billion yuan, and the pressure of maturity renewal has decreased compared with the previous week [8]. 3. Institutional Behavior - Inter - bank Bond Market Leverage Ratio: From September 8 - 12, 2025, the average value of the estimated inter - bank bond market leverage ratio was 107.55%, lower than the estimated average value of 107.70% from September 1 - 5 [9].