债市机构行为周报（7月第5周）：增值税恢复后，债市交易面三个推演-20250803

1. Report Industry Investment Rating No relevant content provided. 2. Report's Core View - The resumption of VAT collection on treasury bonds, local government bonds, and financial bonds is expected to have a neutral impact on the bond market. The relatively low VAT rate and its application only to interest income limit the direct impact on the bond market [3][5][6]. 3. Summary by Directory 3.1 This Week's Institutional Behavior Review - Yield Curve: Yields on treasury bonds and China Development Bank bonds generally declined. Treasury bond yields decreased across various tenors, with the 1Y yield down 1bp, 3Y down 3bp, etc. China Development Bank bond yields also dropped, such as the 1Y yield down about 2bp and 3Y down 4bp [18]. - Term Spread: The spread between treasury bonds and China Development Bank bonds increased. For treasury bonds, the short - term spread was differentiated, and the long - term spread narrowed. For China Development Bank bonds, the spread increased, and the term spread generally narrowed [19][20][21]. 3.2 Bond Market Leverage and Funding Situation - Leverage Ratio: It dropped to 107.46%. From July 28 to August 1, 2025, the leverage ratio fluctuated upward during the week. As of August 1, it was about 107.46%, up 0.7pct from the previous Friday and 0.66pct from Monday [22]. - Pledged Repurchase: The average daily turnover of pledged repurchase this week was 6.6 trillion yuan, with an average daily overnight proportion of 86.77%. The average daily turnover decreased by 1.05 trillion yuan compared to last week [27]. - Funding Situation: Bank funding supply fluctuated upward. Large state - owned banks and policy banks had a net funding supply of 4.38 trillion yuan on August 1. The main fund - borrowing party was funds, and the money - market fund's funding supply fluctuated downward [33]. 3.3 Duration of Medium - and Long - Term Bond Funds - Median Duration: It dropped to 2.83 years. On August 1, the median duration (ex - leverage) was 2.83 years, down 0.05 years from the previous Friday; the median duration (including leverage) was 3.18 years, down 0.06 years from the previous Friday [47]. - Interest - Rate Bond Fund Duration: It dropped to 3.88 years. The median duration of interest - rate bond funds (including leverage) decreased to 3.88 years, down 0.06 years from the previous Friday [49][52]. 3.4 Category Strategy Comparison - China - US Yield Spread: The short - term spread narrowed, and the long - term spread widened. The 1Y spread narrowed by 1bp, 2Y by 4bp, etc., while the 7Y spread widened by 2bp, 10Y by about 4bp, and 30Y by 5bp [54]. - Implied Tax Rate: It generally narrowed. As of August 1, the 1Y spread between China Development Bank bonds and treasury bonds narrowed by 2bp, 3Y by about 1bp, etc. [57]. 3.5 Bond Lending Balance Changes - On August 1, the lending concentration of active and second - active 10Y treasury bonds, active 10Y China Development Bank bonds, and active 30Y treasury bonds trended upward, while that of the second - active 10Y China Development Bank bonds trended downward. All institutions showed an upward trend [58].