证 券 研 究 报 告 【债券周报】 信用利差多数走阔，优先布局中短端票息资产 ——信用周报 20251221 （1）1y 品种：当前收益率主要分布在 1.72%-1.80%区间，利差在 2024 年以来 中枢水平以下 13-19BP，本周利差小幅回升，但性价比仍相对较低。 （2）2-3y 品种：收益率主要分布在 1.83%-2.10%区间，利差在 19-42BP 区间， 考虑增值税新规对国开债曲线影响后（按 3%税率估算，影响约 5BP），2-3y 信 用品种利差在 2024 年以来中枢水平附近。考虑到后续基金和理财对短端品种 的配置需求较高，可优选底仓品种，优先布局明年中短端票息资产。 （3）4-5y 品种：收益率主要分布在 2.0%-2.35%区间，利差在 26-55BP 区间。 本周 4-5y 品种利差走阔，尤其低等级品种，主要受地产债及周期债调整影响， 票息配置性价比边际回升。在 3y 以内短端极致拥挤的情况下，基金和理财或 拉长久期至 4-5y 品种博取收益，但需求力量较今年或整体有所减弱、波动性 或增强。从季节性看，12 月信用利差压缩动能通常有限，一季度非银配置力 量逐渐增强、债市利空因素边际 ...

量化信用策略 截至 12 月 12 日，控回撤成为近期主要策略目标。具体来看，城投短端下沉、商金债子弹型及券商债下沉组合的累计 超额收益分别达到 5bp、4.4bp、1.5bp，其余中长端策略累计则不足 5bp。近一个月内慢涨快跌的行情下控回撤成为 主要目标，而非基于久期+波段做出超额，毕竟前两个月表现出色的城投哑铃组合，近四周累计超额读数降至-25.7bp 的低位。金融债重仓组合也是如此，下沉策略超出对应久期策略累计收益均值 12bp 之多。 ETF 谋势 上周（12/8-12/12）债券型 ETF 资金净流入 29.5 亿元，信用债 ETF、利率债 ETF、可转债 ETF 分别净流入 53.7 亿元、 净流出 9.6 亿元、净流出 14.6 亿元。业绩表现来看，相较于上周，信用债 ETF、利率债 ETF、可转债 ETF 累计单位净 值周度涨跌幅分别为+0.05%、+0.08%、+0.20%，债券 ETF 净值边际修复。 票息资产热度图谱 截至 2025 年 12 月 15 日，与前一周相比，非金融非地产类产业债收益超过半数上行，不过，除 1 年内民企私募债外， 其余品种收益调整不足 4BP；地产债收益普遍 ...

Group 1: Credit Strategy - The report emphasizes the need to monitor redemption disturbances and suggests seizing the value of coupon assets during high points [2][11] - Current yields for 1-year products range from 1.73% to 1.82%, with spreads within 20 basis points, which is lower by 10-16 basis points compared to the lowest point in 2024, indicating low cost-effectiveness [2][32] - For 2-3 year products, yields are between 1.87% and 2.12%, with spreads from 17 to 35 basis points, still having 1-8 basis points of room compared to 2024's lowest spreads [2][32] - The 4-5 year products show yields from 2.03% to 2.31%, with spreads between 23 and 47 basis points, which have compressed slightly due to institutional configurations, enhancing cost-effectiveness [2][32] - Long-term credit products (5 years and above) offer coupon advantages but test the stability of liabilities, with institutions needing to be cautious in the current volatile market [3][34] Group 2: Market Overview - The credit bond market has seen a general rise in yields, with a divergence in credit spreads, influenced by new fund sales regulations and policy expectations ahead of major meetings [11][12] - Short and medium-term pure bond fund net values have declined, with a cumulative drop of 1.71 basis points and 11.82 basis points respectively over the week [12][18] - The report notes that institutional investors have been net sellers of bonds, with a total net sell-off of 22.477 billion yuan, particularly in the 7-10 year category, while insurance and wealth management products continue to increase their credit bond allocations [22][24] Group 3: Key Policies and Events - The report highlights the optimization of merger note mechanisms by the China Interbank Market Dealers Association, which broadens the support for mergers and enhances funding flexibility [4][36] - The restructuring of state-owned enterprises in Shanxi province aims to improve strategic decision-making efficiency and clarify regulatory boundaries [4][37] - In Chongqing, several state-owned enterprises have consolidated financial equity through stock transfers, leading to more effective management of financial resources [4][37]

Group 1 - The report highlights that the current market conditions present a good window for credit bond allocation, despite limited room for a year-end rally due to cautious central bank policies and stable institutional funding [1][19][20] - The focus is on short to medium-term bonds (1-3 years) for their strong demand potential, while 4-5 year bonds should be considered for allocation at higher yield points due to expected volatility [2][23] - The report indicates that long-term bonds (5 years and above) may face challenges in demand stability, suggesting cautious participation from institutions with weaker funding stability [3] Group 2 - The strategy emphasizes prioritizing short-term credit bonds (3 years and below) and opportunistically allocating to 4-5 year bonds when yields are favorable [21][23] - The report notes that the credit spread for 1-year bonds is currently low, while 2-3 year bonds have shown a marginal recovery in spreads, indicating potential for investment [21][22] - The analysis of various sectors suggests that municipal investment bonds (城投债) and real estate bonds (地产债) present specific opportunities, particularly in lower-rated segments and those with strong regional backing [4][5]

Group 1: Quantitative Credit Strategy - The urban investment bond duration strategy balances returns and defensiveness well, with cumulative excess returns for perpetual bonds, secondary bonds, and urban investment barbell combinations reaching 18.5bp, 14.7bp, and 5.1bp respectively [2][12] - Most medium to long-term strategies have shown excess returns in the past month, indicating potential profit from recent upward trends, although the likelihood of volatility corrections is higher compared to other strategies [2][12] Group 2: Duration Tracking - As of October 24, 2025, the weighted average transaction durations for urban investment bonds and industrial bonds are 1.98 years and 2.42 years, respectively, returning to over 80% of the high historical percentile since 2021 [3][15] - The weighted average transaction durations for secondary capital bonds, perpetual bonds, and general commercial bank bonds are 4.01 years, 3.46 years, and 1.83 years, with secondary capital bonds showing a relatively high duration percentile [3][15] Group 3: Yield Heatmap - As of October 27, 2025, the valuation yields and spreads of private enterprise industrial bonds and real estate bonds are generally higher than other varieties [4][17] - In the non-financial and non-real estate industrial bonds, yields have generally declined, with the average drop exceeding 6bp for 2-5 year state-owned enterprise private perpetual bonds [4][18] Group 4: Science and Technology Innovation Bonds - The issuance of science and technology innovation bonds reached a year-to-date high, with a total issuance scale of 699.4 billion yuan from October 20 to October 24, 2025, including 421.4 billion yuan from the exchange [5][20] - The subscription enthusiasm for new bonds has increased, with several science and technology bonds being oversubscribed by more than three times, indicating strong institutional demand for quality science and technology bonds [5][20] Group 5: Local Government Bonds - From October 20 to October 24, 2025, local government bonds issued totaled 247.2 billion yuan, including 112.4 billion yuan of new special bonds and 65.1 billion yuan of refinancing special bonds [6][23] - The main investment areas for special bond funds are "special new special bonds" and "ordinary/project income," with 73 billion yuan of special refinancing special bonds issued in October, accounting for 9.3% of the month's local bond issuance [6][23]

1. Report Industry Investment Rating No information provided in the content. 2. Core Viewpoints of the Report - The bond market adjusted until late September, and the cost - effectiveness of coupon assets continued to increase. A repair market started around the National Day holiday, but there was a significant term differentiation, with short - duration assets being more favored [5][10][34]. - The current proportion of ordinary credit bonds with valuations in the 2.2% - 2.6% range is relatively high, offering a wide selection [5][34]. - The strategy should prioritize liquidity. There are some opportunities to participate in 3 - 5 - year bank secondary capital bonds after adjustment. Also, considering the curve steepness, it is advisable to continue participating in the sinking of weak - quality urban investment bonds with a 1 - 3 - year term. For ultra - long - term bonds, although the yield cost - effectiveness has increased after adjustment, the recent market is highly uncertain, and the ultra - long - duration strategy may only be suitable for some allocation investors [5][34]. 3. Summary According to Related Catalogs 3.1 Bond Market Performance - **Overall Repair and Term Differentiation**: The bond market experienced continuous adjustment in September, and the repair market started around the National Day holiday. The short - end of credit bonds had a stronger repair, while ultra - long - term credit bonds had a weaker repair, with some varieties still adjusting and performing worse than the same - term interest - rate bonds [10][12][34]. - **Yield Changes**: From September 28 to October 11, 2025, the yields of 1Y, 2Y, 3Y, 4Y, and 5Y national bonds decreased by 1.3BP, 3.0BP, 3.7BP, 4.0BP, and 4.4BP respectively. The yields of the same - term AAA medium - term notes decreased by 7.7BP, 5.7BP, 4.2BP, 3.0BP, and 4.4BP respectively, and the yields of AA + medium - term notes decreased by 5.7BP, 2.7BP, 2.2BP, 1.0BP, and 1.4BP respectively [10][11]. - **Curve Shape**: The steepness of the 1 - 2 - year and 2 - 3 - year periods for all ratings was the highest, and the steepness of the 3 - 5 - year period for low - rated bonds was also relatively high, showing a certain bear - steepening characteristic [14]. - **Historical Quantiles**: Currently, 2 - 3Y, especially around 3Y, coupon assets have certain cost - effectiveness after adjustment. The valuation yields to maturity of 1Y - AAA, 3Y - AAA, 5Y - AAA, 1Y - AA +, 3Y - AA +, 5Y - AA +, 1Y - AA, and 3Y - AA ChinaBond medium - short - term notes from September 28 to October 11, 2025, were at the 23.87%, 40.54%, 49.54%, 25.22%, 39.63%, 46.84%, 28.15%, and 38.73% levels since 2024. The historical quantiles of the 1Y - AAA, 3Y - AAA, 5Y - AAA, 1Y - AA +, 3Y - AA +, 5Y - AA +, 1Y - AA, and 3Y - AA credit spreads were 1.12%, 34.98%, 74.04%, 2.25%, 31.37%, 56.43%, 13.54%, and 29.79% respectively, indicating that the cost - effectiveness around 3Y was relatively high [16]. 3.2 Perpetual and Subordinated Bonds (Er Yong Bonds) - **Market Characteristics**: The market of Er Yong bonds was strongly synchronized, with an obvious "volatility amplifier" characteristic. The repair degree of 1Y - 5Y was higher than that of ordinary credit bonds, but the market for ultra - long - term bonds was poor and continued to weaken [3][18]. - **Yield Changes**: The yields of 1 - 5 - year, 7 - year, and 10 - year AAA - bank secondary capital bonds decreased by 7.89BP, 10.18BP, 10.93BP, 11.20BP, 7.25BP, 3.84BP, and increased by 6.69BP respectively. Currently, the part of the curve above 3 years was still 30BP - 62BP away from the lowest yield point since 2025. Compared with the sharp decline at the end of July, the yield points above 3 years had broken through new highs, and the adjustment amplitude was higher than that of the sharp decline at the end of July [18]. 3.3 Institutional Behavior - **Trading and Allocation**: Public funds and other trading desks continued to sell credit bonds, while wealth management, insurance, and other allocation desks moderately bought on dips, but the incremental purchases were limited, and the overall demand was weak [4][26]. - **Public Funds**: Since mid - August, public funds have sold 3 - 5 - year secondary capital bonds worth 47 billion yuan, with a much higher selling intensity than in previous years [4][27]. - **Wealth Management**: Since August, the weekly net purchase scale of ordinary credit bonds by bank wealth management has remained stable, and the weekly change in the stock scale of wealth management has also been small, indicating that the liability side of wealth management has been relatively stable during this adjustment, but the incremental allocation demand is also weak [4][27]. - **Insurance Funds**: Since August, insurance funds have continued to buy on dips, with a relatively high increase in ordinary credit bonds, reaching 70.8 billion yuan from August to the present. However, since it is not the peak allocation period, and the strengthening of equity assets has also suppressed the preference of insurance funds for fixed - income assets to some extent, the overall allocation demand is not strong [4][27]. - **Credit Bond ETFs**: The performance of credit bond ETFs has been below expectations. The scale and net value of credit market - making ETFs have declined significantly. For science - innovation ETFs, the listing of the second batch of products in late September provided a short - term boost to the overall market, but the sustainability was weak [4][28].

1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - Last week, the bond market sentiment was volatile, with interest rates showing a V-shaped oscillation. Credit bonds also had mixed performance, with the over - sold second - tier and perpetual (二永) bonds partially recovering, while ultra - long - term credit bonds continued to perform poorly. The cost - effectiveness of coupon assets has increased [1][4][10]. - 2 - 5 - year bank secondary capital bonds can continue to be considered; a strategy of sinking into 1 - 3 - year weak - quality urban investment bonds is recommended, as the riding income of about 3 - year varieties with a yield of over 2.2% is quite significant. Ultra - long - term credit bonds have improved in coupon cost - effectiveness after continuous adjustment, but only allocation - type institutions are advised to consider them due to the lack of marginal improvement in liquidity [4][25]. 3. Summary According to the Catalog 3.1 Bond Market Performance - **Interest Rate Bonds**: The overall trend of interest rate bonds was oscillatory last week. The active 10 - year Treasury bond fluctuated between 1.76% - 1.81%, with the bearish force slightly stronger and the bond price weakening over the week [1][10]. - **Credit Bonds**: Different - term credit bond varieties showed differentiated performance. The yields of 1Y - 5Y Treasury bonds and AAA, AA + medium - and short - term notes changed to varying degrees from September 15th to September 19th, 2025. Ultra - long - term credit bonds continued to weaken, with the decline of 10Y varieties generally exceeding that of the same - term interest rate bonds [10][11][12]. 3.2 Secondary - tier and Perpetual (二永) Bonds - **Yield Changes**: After over - adjustment the week before last, the yields of 1Y - 5Y of secondary - tier and perpetual bonds decreased, while those of ultra - long - term parts were similar to ultra - long - term credit bonds. The yields of 1 - 5 years, 7 years, and 10 years of AAA - bank secondary capital bonds decreased by 1.19BP, 1.21BP, 2.58BP, 0.53BP, 1.51BP respectively, and increased by 1.63BP and 3.53BP respectively [2][17]. - **Trading Situation**: In the first half of the week, the sentiment for recovery was high, while in the second half, it was more pessimistic. From September 15th to September 19th, the proportion of low - valuation transactions of secondary - tier and perpetual bonds was 100.00%, 100.00%, 100.00%, 0.00%, 2.44% respectively; the average trading durations were 6.16 years, 4.66 years, 5.01 years, 1.07 years, 0.96 years respectively. The discount trading amplitude was generally within 2BP, and there were only 8 transactions with an amplitude of over 3BP [18][20]. 3.3 Ultra - long - term Credit Bonds - **Selling Pressure**: The institutional selling of ultra - long - term credit bonds continued to strengthen throughout the week, but it was not a typical urgent selling situation. From September 15th to September 19th, the proportion of discount transactions was 56.10%, 70.73%, 48.78%, 65.85%, 78.05% respectively, and most of the discount amplitudes were within 4BP [3][21]. - **Buying Willingness**: The market's willingness to buy ultra - long - term credit bonds remained weak, and high - activity transactions were mainly concentrated in weak - quality urban investment bonds. The proportion of transactions below the valuation was 26.83%, 9.76%, 36.59%, 21.95%, 7.32% respectively. However, about 25% of the transactions below the valuation had an amplitude of over 4BP, mainly in 2 - 5 - year weak - quality urban investment bonds [3][22][27]. 3.4 Curve Shape and Yield Quantiles - **Curve Steepness**: The steepness of the 1 - 2 - year and 2 - 3 - year segments of the full - grade yield curve was the highest, and it was steeper than that after the sharp decline at the end of July. Taking AA + medium - term notes and AA urban investment bonds as examples, the slopes of different segments were calculated [13]. - **Yield Quantiles**: From September 15th to September 19th, 2025, the 1Y - 3Y coupon assets had a certain cost - effectiveness, but the credit spread protection was insufficient. The valuation yields to maturity of 1Y - AAA, 3Y - AAA, etc. were at the corresponding quantiles since 2024, and the historical quantiles of credit spreads were also provided [14][16].

Report Industry Investment Rating - No relevant content provided Core Viewpoints - As of September 22, 2025, the valuation yields and spreads of private enterprise industrial bonds and real estate bonds in the outstanding credit bonds are generally higher than those of other varieties. Compared with last week, the yields of most varieties in non - financial and non - real estate industrial bonds have increased, while the adjustment range of real estate bond yields is relatively small. In financial bonds, the yields of medium - term varieties from 1 - 3 years have mostly declined [2][3][8] - In public urban investment bonds, the weighted average valuation yields in Jiangsu and Zhejiang are below 2.7%, and the yields of urban investment bonds in prefecture - level and district - county levels in Guizhou exceed 4.5%. In private urban investment bonds, the weighted average valuation yields in coastal provinces such as Shanghai, Zhejiang, Guangdong, and Fujian are below 3%, and the yields of varieties in prefecture - level cities in Guizhou and Yunnan are higher than 4% [2][14][22] Summary by Directory Chart 1: Outstanding Credit Bond Weighted Average Valuation Yield - Displays the weighted average valuation yields of various types of outstanding credit bonds as of September 22, including urban investment bonds, non - financial non - real estate industrial bonds (state - owned and private enterprises), real estate bonds (state - owned and private enterprises), financial bonds, etc. [10] Chart 2: Outstanding Credit Bond Weighted Average Spread - Presents the weighted average spreads of various types of outstanding credit bonds as of September 22, with the calculation benchmark being the same - term China Development Bank bonds [11] Chart 3: Change in Outstanding Credit Bond Weighted Average Valuation Yield Compared to Last Week - Shows the changes in the weighted average valuation yields of various types of outstanding credit bonds as of September 22 compared to last week, calculated based on the yields of September 22 and September 15 [12] Chart 4: Change in Outstanding Credit Bond Weighted Average Spread Compared to Last Week - Illustrates the changes in the weighted average spreads of various types of outstanding credit bonds as of September 22 compared to last week, calculated based on the spreads of September 22 and September 15 [13] Chart 5: Public Urban Investment Bond Weighted Average Valuation Yield - Details the weighted average valuation yields of public urban investment bonds in different administrative levels and regions as of September 22, such as provincial, prefecture - level, and district - county levels in various provinces [15] Chart 6: Public Urban Investment Bond Weighted Average Spread - Displays the weighted average spreads of public urban investment bonds in different administrative levels and regions as of September 22 [17] Chart 7: Change in Public Urban Investment Bond Weighted Average Valuation Yield Compared to Last Week - Shows the changes in the weighted average valuation yields of public urban investment bonds in different administrative levels and regions as of September 22 compared to last week [19] Chart 8: Private Urban Investment Bond Weighted Average Valuation Yield - Presents the weighted average valuation yields of private urban investment bonds in different administrative levels and regions as of September 22 [23] Chart 9: Private Urban Investment Bond Weighted Average Spread - Displays the weighted average spreads of private urban investment bonds in different administrative levels and regions as of September 22 [25]

Group 1 - The core viewpoint of the news highlights the performance and liquidity of the credit bond ETF, specifically the Bosera Credit Bond ETF, which has shown a slight increase and strong trading volume in recent months [3][4] - As of September 16, the Bosera Credit Bond ETF has accumulated a 1.32% increase over the past six months, ranking it in the top quarter among comparable funds [3] - The ETF has a recent trading volume of 1.08 billion yuan, with an average daily trading volume of 2.8 billion yuan over the past year, ranking first among comparable funds [3] Group 2 - The recent monetary policy includes two buyout reverse repurchase operations in September, with a total of 9,000 billion yuan in six-month buyout operations planned [3] - The Ministry of Finance emphasized risk prevention and resolution in key areas during a press conference, focusing on local government debt management and the establishment of a legal debt management system [3] - Research institutions note that since July, the rebound in short-term and low-grade credit bond yields has been limited, but there are still favorable factors supporting credit bonds in September [4]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - In August, the "stock - bond seesaw" effect was significant. Interest rates first declined and then rose. Credit bond yields generally followed the upward trend of interest - rate bonds. Short - duration varieties were more resistant to decline, while medium - and long - duration ones were weaker. Looking ahead to September, credit bonds still need defensive strategies [1][11][12]. - After the adjustment in August, some bank capital bonds have fallen to show relative value. For example, 3 - year AA and above second - tier capital bonds are oversold, and 4 - 5 - year large - bank capital bonds also have certain value for accounts with different liability characteristics [29][33][37]. 3. Summary According to the Directory 3.1 High - Coupon Short - Term Bonds as Shields, Oversold Perpetual and Second - Tier Capital Bonds as Spears 3.1.1 Credit Bond Defense with Short - and Medium - Duration - In August, the "stock - bond seesaw" effect was prominent. Short - end bonds outperformed long - end ones. Credit bond yields generally rose with interest - rate bonds. Short - duration credit bonds were more resistant to decline, and institutions further shortened the duration to within 3 years. The net buying scale of credit bonds decreased, and the trading activity also declined [1][11][12]. - In September, credit bonds need defense. Bank wealth - management scale usually declines at the end of the quarter, reducing the demand for credit bonds. Credit spreads are at a relatively low level, and institutions will pay more attention to controlling drawdowns when investing in credit bonds [16]. - There are two defensive ideas for credit bonds. One is to select high - coupon individual bonds within 3 years. The other is to appropriately allocate defensive varieties such as 1Y inter - bank certificates of deposit and 2Y commercial financial bonds, which have certain cost - effectiveness compared with medium - and short - term notes of the same term [3][19][22]. 3.1.2 Bank Capital Bonds: Opportunities Arising from Declines - In August, the yields of bank capital bonds generally rose, and spreads widened. After the adjustment, some varieties showed relative value. For example, 3 - year AA and above second - tier capital bonds were oversold, and the yields of 3 - year AA second - tier capital bonds were equivalent to those of 3 - year AA perpetual bonds [28][29][30]. - The yields of 4 - 5 - year large - bank capital bonds rose significantly in August. As the decline deepened, insurance, wealth - management, and other asset - management products increased their allocation. For accounts with stable liability ends, they are still cost - effective coupon assets. For accounts with unstable liability ends, it is recommended to follow the interest - rate bond market for right - side layout [33][36][37]. 3.2 Urban Investment Bonds: Supply Recovery, Short - End and Low - Rating Bonds Resistant to Declines - In August, the net financing of urban investment bonds was positive and increased year - on - year but decreased month - on - month. The issuance of long - duration bonds decreased, and the weighted average issuance interest rate increased. The net financing performance varied by province [39]. - The yields of urban investment bonds generally rose in August. Short - end and low - rating bonds were more resistant to decline, while 10 - year ultra - long - term bonds were the weakest. Credit spreads showed differentiation [45]. - The trading activity of urban investment bonds was not high in August. The proportion of TKN and low - valuation transactions decreased compared with July. Short - duration bonds had an increase in trading volume, while 3 - 5 - year bonds had weaker trading [51]. 3.3 Industrial Bonds: Supply Contraction, Yields Generally Rising - In August, the issuance and net financing of industrial bonds decreased year - on - year. The issuance sentiment weakened, and the issuance proportion of short - duration bonds within 1 year decreased, while the proportion of 1 - 3 - year bonds increased. The issuance interest rates rose across the board, with medium - and long - duration bonds having a larger increase [54]. 3.4 Bank Capital Bonds: Net Financing Turns Negative, Trading Sentiment is Weak No detailed content provided in the given text for this part other than the title. It can be inferred from the previous content that in August, the net financing of bank capital bonds may have turned negative, and the trading sentiment was weak as the yields generally rose and spreads widened, and the relative performance was inferior to that of general credit bonds [28].