机构行为跟踪周报20250914：基金抛压往“类利率”蔓延-20250914

1. Report Industry Investment Rating The provided content does not mention the industry investment rating. 2. Core Viewpoints of the Report - This week, the pressure of fund selling intensified, and the sold bond types spread from long - term and ultra - long - term interest - rate bonds to credit bonds and Tier 2 capital bonds. The pessimistic sentiment in the bond market spread again, with the 10Y Treasury bond rate smoothly breaking through the key point of 1.80%. Although the bond market sentiment recovered on Friday and funds turned to net buying, the bond market allocation buyers may continue to be absent, and there may still be adjustment space in the bond market, especially for ultra - long - term bonds [9]. - Since August, the growth rate of bond fund scale has been lower than that of stock funds. This week, the issuance share of newly established bond funds remained low, and the net value of various types of bond funds declined significantly, with credit bond funds showing relatively better resistance to decline. Most interest - rate and credit bond funds recorded negative returns in the past three months [90]. 3. Summary According to the Directory 3.1 Overall Sentiment: The Bond Market Vitality Index Declined Significantly - As of September 12, the bond market vitality index decreased by 29 pcts to 22% compared with September 5, and the 5D - MA decreased by 15 pcts to 32%. The rising indicators of bond market vitality included the trading volume of the active 10Y China Development Bank bond / the balance of 9 - 10Y China Development Bank bonds and the excess level of the inter - bank bond market leverage ratio compared with the average of the past 4 years. The declining indicators included the median duration of medium - and long - term pure bond funds, the implied tax rate of the 10 - year China Development Bank bond, and the turnover rate of 30Y Treasury bonds [1][10][12]. 3.2 Institutional Behavior: Funds Sold Heavily, while Rural Commercial Banks and Insurance Companies Strengthened Their Buying 3.2.1 Buying and Selling Strength and Bond Type Selection: Funds Bought Interest - Rate Bonds within 1Y and Sold All Other Types - The net buying strength ranking in the current bond market this week was: large banks > insurance companies > wealth management > other product types > rural finance > others > money market funds > foreign - funded banks. The net selling strength ranking was: funds > city commercial banks > joint - stock banks > securities firms. For ultra - long - term bonds (bonds over 15Y), the net buying strength ranking was: insurance companies > rural commercial banks > wealth management > securities firms > others > other product types, and the net selling strength ranking was: funds > large banks > joint - stock banks > city commercial banks > foreign - funded banks [22]. - From September 8 to 12, the bond market showed different trends each day. Funds mainly sold long - term and ultra - long - term interest - rate bonds, and gradually increased their selling of credit bonds and Tier 2 capital bonds. Rural commercial banks mainly bought long - term and ultra - long - term bonds, and insurance companies' buying strength gradually increased [22][23]. 3.2.2 Trading Portfolio: All Types of Bond Funds Continued to Reduce Duration, with Credit Bond Funds Having a Larger Reduction - As of September 12, the median duration of the full - sample medium - and long - term pure bond funds decreased by 0.11 years compared with September 5. Among them, the median durations of pure interest - rate bond funds, interest - rate bond funds, and credit bond funds decreased by 0.06 years, 0.12 years, and 0.21 years respectively. The median durations of high - performance interest - rate bond funds and credit bond funds decreased by 0.06 years and 0.32 years respectively [42]. 3.2.3 Allocation Portfolio: Wealth Management Extended Duration in the Secondary Market, while Rural Commercial Banks and Insurance Companies Deployed Ultra - Long - Term Bonds - Differentiated Primary Subscription Demand for Treasury Bonds and Policy - Financial Bonds: This week, the primary subscription demand for Treasury bonds and policy - financial bonds was differentiated, and the demand for ultra - long - term bonds was also differentiated. The weighted average overall multiples of Treasury bonds and policy - financial bonds changed compared with the previous week [54]. - Large Banks: The increase in the supply of ultra - long - term bonds may restrict large banks' ability to buy in the secondary market. In terms of short - term Treasury bonds, large banks increased their net buying of Treasury bonds within 1Y since June, but the cumulative net buying scale this year was still far lower than that of the same period in 2024. The net buying of 1 - 3Y Treasury bonds increased from May to July and decreased in August [58][59]. - Rural Commercial Banks: The cumulative net buying scale of rural commercial banks this year was significantly weaker than in previous years, mainly due to the weak net buying of short - term bonds within 1Y. However, the net buying strength of 7 - 10Y and over 10Y bonds was significantly higher than in previous years [71]. - Insurance Companies: The net buying strength of insurance companies for bonds this year was significantly higher than in previous years, mainly due to their strong buying of ultra - long - term bonds over 10Y. As of September 12, the ratio of the cumulative net bond buying of insurance companies to the cumulative premium income and the ratio to the cumulative issuance scale of over 10Y government bonds were both slightly higher than at the end of September last year [79]. - Wealth Management: Since June, the cumulative net buying scale of wealth management products has continued to rise, and the net buying of bonds over 10Y was particularly strong. This week, the duration of the net - bought bonds in the secondary market remained flat, still at the highest level since February 23, 2024 [85][87]. 3.3 Asset Management Product Tracking: Most Interest - Rate and Credit Bond Funds Recorded Negative Returns in the Past Three Months - Since August, the growth rate of bond fund scale has been lower than that of stock funds. This week, the scale of newly established bond funds was only 27 billion yuan, continuing to decline from the previous week [90]. - This week, the net value of various types of bond funds declined significantly, with credit bond funds showing relatively better resistance to decline. Most interest - rate and credit bond funds recorded negative returns in the past three months [90].