1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - In Q4 2025, the bond market showed an N-shaped trend, with credit products outperforming interest rate products. Credit - type bond funds performed better among various medium - and long - term pure bond funds [2][8]. - The share of medium - and long - term pure bond funds in the whole market declined, while the share of high - performing bond funds slightly expanded marginally [2][17]. - The net value of high - performing bond funds significantly recovered in Q4 2025, with about 80% of the income concentrated in October [2][22]. - In terms of bond allocation, high - performing bond funds increased the allocation of secondary and perpetual bonds and reduced the allocation of national bonds. They also reduced the overall positions in interest rate bonds and credit bonds, with a more significant decline in interest rate bonds [2][28]. - The investment strategies of high - performing bond funds included reducing duration, leverage, and moderately adopting a credit - sinking strategy [2][39]. - In the short term, the 10Y national bond is likely to oscillate between 1.8% - 1.9%, and the coupon strategy may still be effective. In the long term, bonds may be weak assets, and a neutral underlying allocation is recommended [2][54]. 3. Summary According to the Table of Contents 3.1 Overview: Coupon Strategy Slightly Outperforms - In Q4 2025, the bond market showed an N - shaped trend. Credit products performed better than interest rate products. Among medium - and long - term pure bond funds, credit - type bond funds performed more outstandingly. For example, products like Jinxin Minxing A and F安达富利纯债A had stable net value growth in Q4 2025, and their annual net value growth rates were over 3% [2][8][13]. 3.2 Share: Decline in the Share of Medium - and Long - Term Pure Bond Funds in the Whole Market, Marginal Expansion of High - Performing Bond Funds - Affected by performance, the share of medium - and long - term pure bond funds in the whole market continued to shrink. However, high - performing medium - and long - term pure bond funds may have benefited from performance support, with a marginal increase in their shares. Some bond funds, such as Xingquan Wentai A, Chang Sheng Sheng Yu Pure Bond A, and Xingzheng Global Hengyuan A, expanded by over 2.5 billion in a single quarter [2][17][18]. 3.3 Net Value: Significant Recovery of the Net Value of High - Performing Bond Funds in Q4 2025 - In Q3 2025, high - performing bond funds in the sample generally recorded negative returns. In Q4 2025, they significantly recovered their net values, with about 80% of the income concentrated in October. Some high - performing products had a net value increase of over 1.0% in October, while there were slight fluctuations or even slight retracements in November and December [2][22]. 3.4 Bond Allocation: Increase in Secondary and Perpetual Bonds, Decrease in National Bonds 3.4.1 Bond Investment Portfolio: Stable Credit, Decrease in Interest Rate - By the end of Q4 2025, high - performing bond funds in the sample reduced their positions in both interest rate bonds and credit bonds, with a more significant decline in interest rate bonds. The weighted average position of interest rate bonds decreased by 5.57 percentage points to 22.01%, and the weighted average position of credit bonds decreased by 0.23 percentage points to 94.44% [28]. - In terms of interest rate bonds, high - performing bond funds reduced their positions in both national bonds and policy - financial bonds, with a more prominent reduction in national bonds. In terms of credit bonds, although the overall position was basically flat, there was an obvious shift in the preference for internal bond types, with a reduction in enterprise bonds and medium - term notes and an increase in financial bonds (excluding policy - financial bonds) [32]. 3.4.2 Top Five Bond Holdings: Decrease in Concentration, Mainly Increase in Secondary and Perpetual Bonds - In Q4 2025, the concentration of high - performing bond funds in the sample decreased, and the holdings became more diversified. The weighted average concentration of high - performing bond funds was about 20.16%, a decrease of 3.35 percentage points from the end of the previous quarter [33]. - In terms of bond categories, high - performing bond funds mainly increased the allocation of secondary and perpetual bonds and reduced the allocation of national bonds in their top five bond holdings, which was consistent with the overall adjustment direction of their holdings. By the end of Q4 2025, the proportion of secondary and perpetual bonds increased by 6.11 percentage points to 37.24%, while the proportion of national bonds decreased by 5.09 percentage points to 2.79% [35]. 3.5 Investment Strategy: Decrease in Duration, Leverage, and Moderate Credit - Sinking 3.5.1 Duration: Marginal Decrease - In Q4 2025, the duration of the heavy - holding bond portfolio of high - performing bond funds in the sample decreased marginally, indicating a defensive duration management strategy. The duration center of the top five heavy - holding bond portfolios decreased by 0.92 years to 3.09 years. Some bond funds, such as Western Securities Seasonal Steady 90 - Day Rolling A, had a duration of less than 1 year. The duration of Southern Runyuan Pure Bond AB adjusted significantly, decreasing by about 8 years [39]. 3.5.2 Leverage: Decrease - In Q4 2025, high - performing bond funds in the sample generally showed a trend of reducing leverage. The weighted average leverage ratio was 121.09%, a decrease of 4.71 percentage points compared with Q3 2025. Some bond funds, such as Bank of China Pure Bond A, had a relatively high leverage ratio, while others like Xingzheng Global Hengyuan A had a relatively low leverage ratio [46]. 3.5.3 Credit - Sinking: Moderate Sinking - High - performing bond funds in the sample showed a cautious and moderate credit - sinking strategy. They increased their holdings of AA + - rated credit bonds and reduced their holdings of AA - rated credit bonds, with the focus of holdings shifting from low - rated to medium - low - rated bonds [50]. 3.6 Summary and Outlook - In Q4 2025, compared with Q3 2025, high - performing bond funds in the sample showed characteristics such as adjusting bond allocation, reducing duration and leverage, and moderately adopting a credit - sinking strategy. - In the short term, the 10Y national bond is likely to oscillate between 1.8% - 1.9%, and the coupon strategy may still be effective. In the long term, bonds may be weak assets, and a neutral underlying allocation is recommended. The continuation of the bond market rally depends on factors such as the persistence of weak credit demand, the continuation of the equity bull market, and the participation of trading accounts [54][63]. 3.7 Appendix - The selection criteria for medium - and long - term bond funds in the sample include being established before 2024, non - fixed - open and non - closed, with a single - holder share ratio of less than 80% from H2 2023 to H1 2024, and an average fund share of more than 500 million from Q3 2024 to Q1 2025 [67]. - The classification basis for the holding styles of bond funds in the sample includes interest - rate - type, financial - type, credit - type, and balanced - type bond funds [65]. - The selection criteria for high - performing bond funds include ranking among the top 50 in net value growth rate in Q4 2025 and having an average fund share of more than 500 million in the previous three periods [67].