证券研究报告 | 2026年03月01日 超长债周报 30 年国债冲高回落 核心观点 固定收益周报 超长债复盘：春节假期出行人数创新高，节后第一周"沪七条"发布，A 股继续反弹，债市先抑后扬，超长债再度下跌。成交方面，上周超长债 交投活跃度大幅下降，交投非常活跃。利差方面，上周超长债期限利差 缩窄，品种利差缩窄。 超长债投资展望： 30 年国债：截至 2 月 27 日，30 年国债和 10 年国债利差为 44BP，处于 历史偏低水平。从国内经济数据来看，12 月经济下行压力有所缓解。我 们测算的 12 月国内 GDP 同比增速约 4.5%，增速较 11 月回升 0.4%。通 胀方面，1 月 CPI 为 0.2%，PPI 为-1.4%，通缩风险继续缓解。我们认为， 3 月债市先抑后扬。一方面，2024 年四季度以来的经济企稳，主要来自 于中央加杠杆的托底。2025 年四季度无增发国债，短期政府托底经济力 度减弱，2025 年四季度 GDP 增速已经回落到了后疫情时代最低水平，我 国经济依然承压。同时从中央经济工作会议和政治局会议来看，2026 年 党中央更加重视高质量发展，经济总量"稳中求进"的重要性次序有所 ...

超长债投资展望： 30 年国债：截至 2 月 13 日，30 年国债和 10 年国债利差为 45BP，处于 历史偏低水平。从国内经济数据来看，12 月经济下行压力有所缓解。我 们测算的 12 月国内 GDP 同比增速约 4.5%，增速较 11 月回升 0.4%。通 胀方面，1 月 CPI 为 0.2%，PPI 为-1.4%，通缩风险继续缓解。我们认为， 近期债市回调概率更大。一方面，2024 年四季度以来的经济企稳，主要 来自于中央加杠杆的托底。2025 年四季度无增发国债，短期政府托底经 济力度减弱，2025年四季度 GDP增速已经回落到了后疫情时代最低水平， 我国经济依然承压。同时从中央经济工作会议和政治局会议来看，2026 年党中央更加重视高质量发展，经济总量"稳中求进"的重要性次序有 所调降。另一方面，春节前后属于统计局数据真空期，当前利率绝对水 平偏低，A 股春季躁动量价齐升，预计股债跷跷板效应强化。近期 30-10 利差高位企稳，预计短期利差高位震荡为主。 证券研究报告 | 2026年02月23日 超长债周报 30-10 期限利差继续高位震荡 核心观点 固定收益周报 超长债复盘：1 月通胀继续回暖 ...

1. Report Industry Investment Rating No information provided. 2. Core Viewpoints - Last week, the 1 - month PMI dropped significantly to 49.3, the central bank's treasury bond trading in January increased to 100 billion, precious metals and A - shares fluctuated greatly, the bond market rose sharply again, and the ultra - long bond yield reached a recent low. The trading activity of ultra - long bonds increased significantly, the term spread narrowed, and the variety spread widened [1][4][12]. - For the 30 - year treasury bond, as of February 6, the spread between the 30 - year and 10 - year treasury bonds was 44BP, at a relatively low historical level. For the 20 - year CDB bond, the spread between the 20 - year CDB bond and 20 - year treasury bond was 14BP, at an extremely low historical position. The probability of a near - term bond market correction is high due to factors such as weakened government support and the stock - bond seesaw effect. The 30 - 10 spread is expected to fluctuate at a high level in the short term, and the variety spread of the 20 - year CDB bond is expected to continue to fluctuate narrowly [2][3][13]. 3. Summary by Directory 3.1 Weekly Review 3.1.1 Ultra - long Bond Review - The 1 - month PMI in January dropped to 49.3, the central bank's treasury bond trading increased to 100 billion, precious metals and A - shares fluctuated, the bond market rose, and the ultra - long bond yield reached a recent low. Trading was very active, the term spread narrowed, and the variety spread widened [1][4][12]. 3.1.2 Ultra - long Bond Investment Outlook - **30 - year Treasury Bond**: As of February 6, the spread was 44BP. The economy's downward pressure eased in December, with a GDP growth rate of about 4.5%, up 0.4% from November. CPI was 0.8% and PPI was - 1.9% in December. The bond market is likely to correct due to weakened government support and the stock - bond seesaw effect. The 30 - 10 spread is expected to fluctuate at a high level [2][13]. - **20 - year CDB Bond**: As of February 6, the spread was 14BP. Similar economic data as the 30 - year treasury bond. The bond market is likely to correct, and the variety spread is expected to fluctuate narrowly [3][14]. 3.1.3 Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds was 24.8 trillion. By variety, local government bonds and treasury bonds were the main ones. By remaining term, the 30 - year variety had the highest proportion [15]. 3.2 Primary Market 3.2.1 Weekly Issuance - Last week (February 2 - 6, 2026), the issuance of ultra - long bonds soared to 321.9 billion yuan. By variety, local government bonds accounted for the largest share. By term, 30 - year bonds had the largest issuance [20]. 3.2.2 This Week's Scheduled Issuance - The announced issuance plan for this week is 159.7 billion yuan, mainly ultra - long local government bonds [24]. 3.3 Secondary Market 3.3.1 Trading Volume - Last week, the trading of ultra - long bonds was very active, with a turnover of 1064.4 billion yuan, accounting for 12.2% of all bond turnovers. Compared with the previous week, the turnover and proportion increased [27]. 3.3.2 Yield - The ultra - long bond yield reached a recent low. Yields of different - term treasury bonds, CDB bonds, local bonds, and railway bonds changed. Representative individual bonds also had yield changes [35][36]. 3.3.3 Spread Analysis - **Term Spread**: It narrowed last week, with the 30 - year - 10 - year treasury bond spread at 44BP, down 2BP from the previous week, at the 31st percentile since 2010 [44]. - **Variety Spread**: It widened last week. The 20 - year CDB bond - treasury bond spread was 14BP, and the 20 - year railway bond - treasury bond spread was 21BP, at the 12th and 16th percentiles since 2010 respectively [48]. 3.4 30 - year Treasury Bond Futures - Last week, the main 30 - year treasury bond futures contract TL2603 closed at 112.57 yuan, up 0.58%. The total trading volume was 503,700 lots (76,441 lots), and the open interest was 117,600 lots (- 17,239 lots). The trading volume increased slightly, and the open interest decreased slightly [51].

Report Industry Investment Rating No information provided. Core View - Last week, the A-share market rose and then fell, there were rumors that the central bank would introduce a liquidity management tool for overnight interest rates, the gold price plunged from a high level, the bond market consolidated at a high level, and ultra-long bonds made minor adjustments. The trading activity of ultra-long bonds decreased slightly but remained very active, and both the term spread and the variety spread of ultra-long bonds narrowed [1][10]. - For the 30-year treasury bond, as of January 30, the spread between the 30-year and 10-year treasury bonds was 46BP, at a historically low level. Considering the economic data and policies, the probability of a bond market correction in February is higher, and the 30-10 spread is expected to fluctuate at a high level in the short term [2][11]. - For the 20-year CDB bond, as of January 30, the spread between the 20-year CDB bond and the 20-year treasury bond was 14BP, at a historically extremely low level. Similar to the 30-year treasury bond, the probability of a bond market correction in February is higher, and the variety spread of the 20-year CDB bond is expected to continue to fluctuate narrowly [3][12]. Summary by Relevant Catalogs Weekly Review - Ultra-long Bond Review - Last week, the A-share market rose and then fell, there were rumors of a central bank liquidity management tool, the gold price plunged, the bond market consolidated at a high level, and ultra-long bonds made minor adjustments. The trading activity of ultra-long bonds decreased slightly but was still very active. The term spread and variety spread of ultra-long bonds narrowed [1][10]. Weekly Review - Ultra-long Bond Investment Outlook - **30-year Treasury Bond**: As of January 30, the 30-10 spread was 46BP, at a low historical level. The economic downward pressure in December was alleviated, with a GDP growth of about 4.5% and a 0.4% increase from November. The deflation risk continued to ease. The probability of a bond market correction in February is higher due to factors such as the weakening government support and the expected strengthening of the stock-bond seesaw effect. The 30-10 spread is expected to fluctuate at a high level in the short term [2][11]. - **20-year CDB Bond**: As of January 30, the spread between the 20-year CDB bond and the 20-year treasury bond was 14BP, at a historically extremely low level. Similar to the 30-year treasury bond, the economic situation in December improved, and the probability of a bond market correction in February is higher. The variety spread of the 20-year CDB bond is expected to continue to fluctuate narrowly [3][12]. Weekly Review - Ultra-long Bond Basic Overview - The balance of outstanding ultra-long bonds is 24.8 trillion. As of January 31, the total amount of ultra-long bonds with a remaining term of over 14 years was 248,306 billion, accounting for 15.1% of all bonds. Local government bonds and treasury bonds are the main varieties. By remaining term, the 30-year variety has the highest proportion [13]. Primary Market - Weekly Issuance - Last week (January 26 - 30, 2026), the issuance volume of ultra-long bonds surged to 2,525 billion yuan. Compared with the previous week, the total issuance volume increased significantly. By variety, local government bonds accounted for the largest share. By term, 30-year bonds had the highest issuance volume [18]. Primary Market - This Week's Pending Issuance - This week's announced ultra-long bond issuance plan totals 3,173 billion yuan, including 320 billion yuan of ultra-long treasury bonds, 2,838 billion yuan of ultra-long local government bonds, 15 billion yuan of ultra-long corporate bonds, and no ultra-long medium-term notes [22]. Secondary Market - Trading Volume - Last week, the trading of ultra-long bonds was very active, with a trading volume of 10,113 billion yuan, accounting for 11.2% of all bonds. The trading activity decreased slightly compared with the previous week, with a decrease in the trading volume and proportion of ultra-long treasury bonds, an increase in those of ultra-long local bonds, and decreases in those of ultra-long policy financial bonds and ultra-long government agency bonds [25]. Secondary Market - Yield - Last week, the bond market consolidated at a high level, and ultra-long bonds made minor adjustments. The yields of treasury bonds, CDB bonds, local bonds, and railway bonds of different terms changed to varying degrees. For example, the yields of 15-year, 20-year, 30-year, and 50-year treasury bonds changed to 2.14%, 2.26%, 2.29%, and 2.47% respectively [36]. Secondary Market - Spread Analysis - **Term Spread**: The term spread of ultra-long bonds narrowed last week, and the absolute level was low. The 30-10 spread of benchmark treasury bonds was 46BP, a -1BP change from the previous week, at the 38% percentile since 2010 [43]. - **Variety Spread**: The variety spread of ultra-long bonds also narrowed last week, and the absolute level was low. The spreads between the 20-year CDB bond and treasury bond and between the 20-year railway bond and treasury bond were 14BP and 20BP respectively, with changes of 0BP and -1BP from the previous week, at the 11% and 14% percentiles since 2010 [44]. 30-year Treasury Bond Futures - Last week, the main contract of the 30-year treasury bond futures, T2603, closed at 111.92 yuan, a -0.34% increase. The total trading volume was 427,200 lots (-35,804 lots), and the open interest was 134,800 lots (-5,688 lots), with both the trading volume and open interest decreasing slightly compared with the previous week [50].

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - After the release of economic data for December and the fourth quarter last week, with a Q4 GDP growth rate of 4.5% and a full - year GDP growth rate of 5% in 2025, the A - share market cooled, MLF had a net injection of 70 billion yuan, the bond market continued to rebound, and ultra - long bonds made up for lost ground. The trading activity of ultra - long bonds increased significantly last week, and the term spread of ultra - long bonds flattened while the variety spread showed mixed changes [1][12][42]. - For the 30 - year treasury bond, as of January 23, the spread between the 30 - year and 10 - year treasury bonds was 46BP, at a historically low level. Considering the economic situation and other factors, the bond market is more likely to fluctuate, and the 30 - 10 spread is expected to oscillate at a high level in the near future [2][13]. - For the 20 - year CDB bond, as of January 23, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 14BP, at a historically extremely low position. The bond market is likely to fluctuate, and the variety spread of the 20 - year CDB bond is expected to have narrow - range oscillations [3][14]. Summary by Directory Weekly Review Ultra - long Bond Review - After the release of December and Q4 economic data last week, with Q4 GDP growth at 4.5% and full - year 2025 GDP growth at 5%, A - shares cooled, MLF had a net injection of 70 billion yuan, the bond market rebounded, and ultra - long bonds made up for lost ground. Trading activity increased significantly, the term spread flattened, and the variety spread showed mixed changes [1][12][42]. Ultra - long Bond Investment Outlook - **30 - year Treasury Bond**: As of January 23, the 30 - 10 spread was 46BP, at a historically low level. In December, the economic downward pressure eased, with an estimated GDP growth of about 4.5% and a 0.4% increase from November. CPI was 0.8% and PPI was - 1.9%, and deflation risk continued to ease. The bond market is likely to fluctuate, and the 30 - 10 spread is expected to oscillate at a high level [2][13]. - **20 - year CDB Bond**: As of January 23, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 14BP, at a historically extremely low position. December economic data showed easing downward pressure, and deflation risk continued to ease. The bond market is likely to fluctuate, and the variety spread of the 20 - year CDB bond is expected to have narrow - range oscillations [3][14]. Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds was 24.4 trillion. As of December 31, ultra - long bonds with a remaining term over 14 years totaled 24.4329 trillion (excluding asset - backed securities and project revenue notes), accounting for 15.1% of the total bond balance. Local government bonds and treasury bonds were the main varieties. In terms of remaining term, the 30 - year variety had the highest proportion [15]. Primary Market Weekly Issuance - Last week (January 19 - 23, 2026), the issuance of ultra - long bonds increased significantly, totaling 10.12 billion yuan. By variety, only local government bonds were issued, amounting to 10.12 billion yuan. By term, 2.4 billion yuan was issued with a 15 - year term, 41.9 billion yuan with a 20 - year term, and 58.8 billion yuan with a 30 - year term [20]. This Week's Scheduled Issuance - The announced ultra - long bond issuance plan for this week totals 18.77 billion yuan, including 18.47 billion yuan of ultra - long local government bonds and 0.3 billion yuan of ultra - long medium - term notes [25]. Secondary Market Trading Volume - Last week, ultra - long bonds were very actively traded, with a trading volume of 1.0926 trillion yuan, accounting for 12.3% of the total bond trading volume. Compared with the previous week, the trading volume increased by 213.1 billion yuan, and the proportion increased by 2.5% [28]. Yield - After the release of economic data, the bond market rebounded, and ultra - long bonds made up for lost ground. Yields of treasury bonds, CDB bonds, local bonds, and railway bonds of different terms changed to varying degrees [42]. Spread Analysis - **Term Spread**: The term spread of ultra - long bonds flattened last week, with an absolute level on the low side. The 30 - 10 spread of benchmark treasury bonds was 46BP, the same as the previous week, and the spread was at the 34th percentile since 2010 [50]. - **Variety Spread**: The variety spread of ultra - long bonds showed mixed changes last week, with an absolute level on the low side. The spread between the 20 - year CDB bond and the treasury bond was 14BP, and the spread between the 20 - year railway bond and the treasury bond was 21BP, with changes of - 1BP and 1BP respectively compared with the previous week, at the 11th and 17th percentiles since 2010 [51]. 30 - year Treasury Bond Futures - Last week, the main contract TL2603 of the 30 - year treasury bond futures closed at 112.30 yuan, an increase of 1.03%. The total trading volume was 463,100 lots (- 79,636 lots), and the open interest was 140,500 lots (+ 536 lots). The trading volume decreased significantly compared with the previous week, while the open interest increased slightly [56].

Report Industry Investment Rating - Not mentioned in the provided content Core Viewpoints - The bond market rebounded slightly last week due to the central bank's 900 billion yuan 6 - month repurchase operation, a 25BP reduction in the structural monetary policy tool rate, good December import - export growth, weak December financial data, consecutive negative growth in household loans for three months, and the A - share market correction [1][4][11][39] - The current bond market is more likely to fluctuate. The economic stabilization since Q4 2024 was mainly due to central government leverage. With no additional treasury bond issuance in Q4 2025 and the decline in government bond financing growth, the domestic economy in Q4 remains under pressure. Also, in 2026, the Party Central Committee emphasizes high - quality development more, and the importance of "seeking progress while maintaining stability" in economic aggregates has decreased. Additionally, the absolute interest rate level is low, there is heavy selling pressure in treasury bond futures, and investor sentiment is generally weak [2][3][12][13] - The 30 - 10 spread of treasury bonds reached a new high this week and is expected to fluctuate at a high level in the near term. The spread of 20 - year CDB bonds is expected to fluctuate narrowly [2][3][12][13] Summary by Directory Weekly Review Long - term Bond Review - The central bank conducted a 900 billion yuan 6 - month repurchase operation and reduced the structural monetary policy tool rate by 25BP. December import - export growth was good, but December financial data was weak, with household loans in negative growth for the third consecutive month. Along with the A - share correction, the bond market rebounded slightly. The trading activity of long - term bonds decreased slightly last week but was still very active. The term spread and variety spread of long - term bonds widened [1][4][11] Long - term Bond Investment Outlook - **30 - year Treasury Bonds**: As of January 16, the spread between 30 - year and 10 - year treasury bonds was 46BP, at a historically low level. Considering economic and policy factors, the bond market is likely to fluctuate, and the 30 - 10 spread is expected to fluctuate at a high level [2][12] - **20 - year CDB Bonds**: As of January 16, the spread between 20 - year CDB bonds and 20 - year treasury bonds was 15BP, at a historically extremely low level. Given the economic situation, the bond market is likely to fluctuate, and the variety spread of 20 - year CDB bonds is expected to fluctuate narrowly [3][13] Long - term Bond Basic Overview - The balance of outstanding long - term bonds is 24.3 trillion yuan. As of December 31, the total amount of long - term bonds with a remaining maturity of over 14 years was 24.4329 trillion yuan, accounting for 15.1% of the total bond balance. Local government bonds and treasury bonds are the main varieties. In terms of remaining maturity, the 30 - year variety has the highest proportion [14] Primary Market Weekly Issuance - Last week (January 12 - 16, 2026), the issuance of long - term bonds dropped sharply to 83.7 billion yuan. By variety, treasury bonds were 32 billion yuan, local government bonds were 51.7 billion yuan, and other varieties had zero issuance. By term, the 30 - year variety had the largest issuance [19] This Week's Planned Issuance - The announced long - term bond issuance plan for this week is 102.2 billion yuan, including 10.12 billion yuan of long - term local government bonds and 1 billion yuan of long - term medium - term notes [25] Secondary Market Trading Volume - Last week, long - term bonds were very actively traded, with a turnover of 879.5 billion yuan, accounting for 9.7% of the total bond turnover. The trading activity decreased slightly compared to the previous week, with a decrease in turnover and proportion in most varieties, except for an increase in long - term local government bonds and long - term government agency bonds [27][28] Yield - Due to various factors, the bond market rebounded slightly. The yields of 15 - year, 20 - year, 30 - year, and 50 - year treasury bonds, CDB bonds, local bonds, and railway bonds changed to different extents. Representative individual bonds also had corresponding yield changes [39][40] Spread Analysis - **Term Spread**: The term spread of long - term bonds widened last week, with an absolute low level. The 30 - 10 spread of benchmark treasury bonds was 46BP, a 4BP change from the previous week, at the 35th percentile since 2010 [46] - **Variety Spread**: The variety spread of long - term bonds widened last week, with an absolute low level. The spreads between 20 - year CDB bonds and treasury bonds, and 20 - year railway bonds and treasury bonds were 15BP and 20BP respectively, with changes of 1BP and 2BP from the previous week, at the 14th and 20th percentiles since 2010 [47] 30 - year Treasury Bond Futures - Last week, the main contract of 30 - year treasury bond futures, TL2603, closed at 111.16 yuan, an increase of 0.26%. The total trading volume was 542,700 lots (- 18,010 lots), and the open interest was 140,000 lots (- 8,274 lots). Both trading volume and open interest decreased slightly compared to the previous week [52]

1. Report Industry Investment Rating No information provided. 2. Core View of the Report - Last week, the central bank announced buying bonds worth 50 billion yuan in November, with the purchase scale the same as in October. The open - market had a large - scale net withdrawal, inflation continued to recover in December, and the A - share market had a strong start with both volume and price rising. The bond market first declined and then rose, and the yield of ultra - long bonds reached a new high during the week. The trading activity of ultra - long bonds increased slightly, and both the term spread and the variety spread widened [1][4][11]. - The current bond market is more likely to fluctuate. For the 30 - year treasury bond, as of January 9, the spread between the 30 - year and 10 - year treasury bonds was 42BP, at a relatively low historical level. For the 20 - year CDB bond, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 14BP, at an extremely low historical position. The economic downward pressure increased in November, and the deflation risk continued to ease in December. The economic stabilization since Q4 2024 was mainly due to the central government's leverage - increasing support. Considering no additional treasury bond issuance in Q4 2025 and the decline in the financing growth rate of government bonds in Q4, the domestic economy in Q4 was still under pressure. Also, the Party Central Committee attaches more importance to high - quality development in 2026. With the low absolute level of interest rates, the sharp rise of the A - share market at the beginning of the year, and the large selling pressure of treasury bond futures, investors' sentiment was generally weak. It is expected that the 30 - 10 spread will fluctuate at a high level, and the variety spread of the 20 - year CDB bond will fluctuate in a narrow range [2][3][12][13]. 3. Summary According to the Directory Weekly Review Ultra - long Bond Review - The central bank bought 50 billion yuan of bonds in November, with the scale the same as in October. The open - market had a large - scale net withdrawal, inflation continued to warm up in December, the A - share market had a strong start, the bond market first declined and then rose, and the yield of ultra - long bonds reached a new high during the week. The trading activity of ultra - long bonds increased slightly and was very active. The term spread and variety spread of ultra - long bonds widened [1][11]. Ultra - long Bond Investment Outlook - **30 - year Treasury Bond**: As of January 9, the 30 - 10 spread was 42BP, at a relatively low historical level. The economic downward pressure increased in November (GDP growth rate was about 4.1% year - on - year, down 0.1% from October). In December, CPI was 0.8% and PPI was - 1.9%, and the deflation risk continued to ease. The bond market is likely to fluctuate. The 30 - 10 spread is expected to fluctuate at a high level [2][12]. - **20 - year CDB Bond**: As of January 9, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 14BP, at an extremely low historical position. Similar to the 30 - year treasury bond, considering economic and market factors, the bond market is likely to fluctuate, and the variety spread of the 20 - year CDB bond is expected to fluctuate in a narrow range [3][13]. Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds was 24.3 trillion yuan. As of December 31, the total amount of ultra - long bonds with a remaining term of more than 14 years was 24,432.9 billion yuan (excluding asset - backed securities and project revenue notes), accounting for 15.1% of the total bond balance. Local government bonds and treasury bonds were the main varieties. By remaining term, the 30 - year variety had the highest proportion [14]. Primary Market Weekly Issuance - Last week (January 4 - 9, 2026), the issuance volume of ultra - long bonds increased sharply, reaching 191.6 billion yuan. By variety, local government bonds accounted for the largest share. By term, the 30 - year bonds had the largest issuance volume [20]. This Week's Scheduled Issuance - The announced issuance plan for ultra - long bonds this week is 84.2 billion yuan, including 32 billion yuan of ultra - long treasury bonds, 51.7 billion yuan of ultra - long local government bonds, and 0.5 billion yuan of ultra - long medium - term notes [24]. Secondary Market Trading Volume - Last week, the trading of ultra - long bonds was very active, with a trading volume of 984.1 billion yuan, accounting for 11.3% of the total bond trading volume. The trading activity increased slightly compared with the previous week [28]. Yield - The yield of ultra - long bonds reached a new high during the week. The yields of 15 - year, 20 - year, 30 - year, and 50 - year treasury bonds, CDB bonds, local bonds, and railway bonds all changed to different extents [38]. Spread Analysis - **Term Spread**: The term spread of ultra - long bonds widened last week, and the absolute level was low. The 30 - 10 spread of benchmark treasury bonds was 42BP, up 1BP from the previous week, at the 27% quantile since 2010 [50]. - **Variety Spread**: The variety spread of ultra - long bonds widened last week, and the absolute level was low. The spreads between the 20 - year CDB bond and treasury bond, and between the 20 - year railway bond and treasury bond were 14BP and 18BP respectively, up 0BP and 1BP from the previous week, at the 12% and 13% quantiles since 2010 [51]. 30 - year Treasury Bond Futures - Last week, the main contract of the 30 - year treasury bond futures, TL2603, closed at 110.87 yuan, a decline of - 0.48%. The total trading volume was 560,700 lots, and the open interest was 148,200 lots. The trading volume increased significantly, and the open interest increased slightly compared with the previous week [54].

Report Industry Investment Rating No relevant content provided. Core Viewpoints - Last week, the central bank announced bond purchases of 50 billion yuan in November, with the purchase scale remaining the same as in October. There was a significant net withdrawal in the open - market operations, inflation continued to recover in December, and the A - share market started the year with strong volume and price. The bond market first declined and then rebounded, and the yield of ultra - long bonds reached a new high during the week. The trading activity of ultra - long bonds increased slightly and was very active. Both the term spread and the variety spread of ultra - long bonds widened [1][4][11][38]. - As of January 9, the spread between 30 - year treasury bonds and 10 - year treasury bonds was 42BP, at a historically low level. The spread between 20 - year CDB bonds and 20 - year treasury bonds was 14BP, at a historically extremely low position. Considering the economic situation and market factors, the bond market is more likely to fluctuate. It is expected that the 30 - 10 spread will fluctuate at a high level in the near term, and the variety spread of 20 - year CDB bonds will have a narrow - range fluctuation [2][3][12][13]. Summary by Relevant Catalogs Weekly Review Ultra - long Bond Review - The central bank's bond - buying scale in November was 50 billion yuan, the same as in October. With open - market net withdrawal, inflation recovery, and A - share market strength, the bond market first declined and then rebounded. The ultra - long bond yield reached a new high during the week. Trading activity increased slightly and was very active. Both term and variety spreads widened [1][11]. Ultra - long Bond Investment Outlook - **30 - year Treasury Bonds**: As of January 9, the 30 - 10 spread was 42BP, at a low historical level. The domestic economic downward pressure increased in November, with the estimated GDP growth rate of about 4.1% year - on - year, a 0.1% decline from October. In December, CPI was 0.8% and PPI was - 1.9%, and the deflation risk continued to ease. The bond market is likely to fluctuate, and the 30 - 10 spread is expected to fluctuate at a high level [2][12]. - **20 - year CDB Bonds**: As of January 9, the 20 - year CDB bond - treasury bond spread was 14BP, at an extremely low historical position. The economic situation is similar to that of 30 - year treasury bonds. The bond market is likely to fluctuate, and the variety spread of 20 - year CDB bonds is expected to have a narrow - range fluctuation [3][13]. Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds is 24.3 trillion yuan. As of December 31, the total amount of ultra - long bonds with a remaining maturity of more than 14 years was 24.4329 trillion yuan, accounting for 15.1% of the total bond balance. Local government bonds and treasury bonds are the main varieties. By variety, treasury bonds account for 28.2%, local government bonds 66.4%, etc. By remaining maturity, the 25 - 35 - year variety accounts for the highest proportion at 40.2% [14]. Primary Market Weekly Issuance - Last week (January 4 - 9, 2026), the issuance of ultra - long bonds surged to 191.6 billion yuan. By variety, local government bonds accounted for 185.8 billion yuan. By term, 30 - year bonds accounted for 115.1 billion yuan [20]. This Week's Scheduled Issuance - The announced ultra - long bond issuance plan for this week is 84.2 billion yuan, including 32 billion yuan of ultra - long treasury bonds and 51.7 billion yuan of ultra - long local government bonds [24]. Secondary Market Trading Volume - Last week, the trading of ultra - long bonds was very active, with a turnover of 984.1 billion yuan, accounting for 11.3% of the total bond turnover. The trading activity increased slightly compared with the previous week [28]. Yield - Due to factors such as central bank bond - buying and market conditions, the ultra - long bond yield reached a new high during the week. The yields of 15 - year, 20 - year, 30 - year, and 50 - year treasury bonds changed by 3BP, 4BP, 4BP, and 5BP respectively [38]. Spread Analysis - The term spread of ultra - long bonds widened last week, with an absolute low level. The variety spread also widened, with an absolute low level. The 30 - 10 treasury bond spread was 42BP, and the 20 - year CDB bond - treasury bond spread was 14BP [50][51]. 30 - year Treasury Bond Futures - Last week, the 30 - year treasury bond futures main contract TL2603 closed at 110.87 yuan, with a decline of - 0.48%. The trading volume increased significantly, and the open interest increased slightly [54].

1. Report Industry Investment Rating - No industry investment rating information is provided in the report. 2. Core Viewpoints of the Report - The long - term bond market is more likely to fluctuate. For 30 - year treasury bonds and 20 - year CDB bonds, considering factors such as economic pressure in Q4 2026, the central government's emphasis on high - quality development, low interest rates, market desensitization to positive factors, and large selling pressure in treasury bond futures, the bond market is expected to fluctuate. The 30 - 10 spread of 30 - year treasury bonds is expected to fluctuate at a high level, and the spread of 20 - year CDB bonds is expected to fluctuate narrowly [2][3]. - Last week, long - term bonds tumbled again. The yield of long - term varieties increased due to the mention of expanding fiscal expenditure at the fiscal work conference and the rebound of the manufacturing PMI in December. The trading activity of long - term bonds changed little but was very active. The term spread widened, and the variety spread narrowed [1][4]. 3. Summary by Relevant Catalogs Weekly Review Long - term Bond Review - Last week, long - term bonds tumbled again. The yield of long - term varieties increased as the fiscal work conference mentioned expanding fiscal expenditure and the manufacturing PMI in December rebounded 0.9 to 50.1, returning to the boom - bust line for the first time since April. In terms of trading, the trading activity of long - term bonds changed little but was very active. The term spread widened, and the variety spread narrowed [1][4]. Long - term Bond Investment Outlook - **30 - year Treasury Bonds**: As of December 31, the spread between 30 - year and 10 - year treasury bonds was 40BP, at a historically low level. In November, the economic downward pressure continued to increase, with the estimated GDP growth rate of about 4.1%, a 0.1% decline from October. The deflation risk eased with CPI at 0.7% and PPI at - 2.2%. The bond market is more likely to fluctuate. The economic stabilization since Q4 last year was mainly due to central government leverage. Without additional treasury bond issuance in Q4 2026, the government bond financing growth rate is expected to decline rapidly, and the economy will still face pressure. The central government attaches more importance to high - quality development in 2026. Also, the absolute level of interest rates is low, the market is desensitized to positive factors, and the selling pressure of treasury bond futures is large. The 30 - 10 spread is expected to fluctuate at a high level [2]. - **20 - year CDB Bonds**: As of December 31, the spread between 20 - year CDB bonds and 20 - year treasury bonds was 16BP, at a historically extremely low level. The economic situation in November was similar to that of 30 - year treasury bonds. The bond market is more likely to fluctuate. Considering the short - term bond market fluctuation, the variety spread of 20 - year CDB bonds is expected to fluctuate narrowly [3]. Long - term Bond Basic Overview - The balance of long - term bonds is 24.4 trillion. As of December 31, long - term bonds with a remaining term of over 14 years totaled 244,329 billion, accounting for 15.1% of all bonds. Local government bonds and treasury bonds are the main varieties. By variety, treasury bonds accounted for 28.2%, local government bonds 66.4%, etc. By remaining term, the 25 - 35 - year variety accounted for the highest proportion at 40.2% [13]. Primary Market Weekly Issuance - Last week, there was no issuance of long - term bonds. Compared with the week before last, the total issuance volume decreased significantly. By variety and term, the issuance volume was all 0 [18]. This Week's Pending Issuance - The announced long - term bond issuance plan this week totals 929 billion, all of which are long - term local government bonds [20]. Secondary Market Trading Volume - Last week, the trading of long - term bonds was very active, with a turnover of 4,075 billion, accounting for 11.1% of all bonds. By variety, the turnover and proportion of different types of long - term bonds are as follows: long - term treasury bonds accounted for 35.1% of all treasury bonds, long - term local bonds 50.1% of all local bonds, etc. The trading activity decreased. Compared with the week before last, the turnover and proportion of long - term bonds changed: the turnover decreased by 1,607 billion, and the proportion decreased by 1.0%. The turnover and proportion of different types of long - term bonds also changed accordingly [23]. Yield - Last week, long - term bonds tumbled again. The yield of long - term varieties increased. For treasury bonds, the yields of 15 - year, 20 - year, 30 - year, and 50 - year bonds changed by 2BP, 4BP, 4BP, and 4BP to 2.14%, 2.25%, 2.27%, and 2.48% respectively. Similar changes occurred in CDB bonds, local bonds, and railway bonds. For representative individual bonds, the yield of the 30 - year treasury bond active bond 25 extra - long special treasury bond 02 changed by 4.35BP to 2.26%, and the yield of the 20 - year CDB bond active bond 21 CDB 20 changed by 5BP to 2.32% [32][37]. Spread Analysis - **Term Spread**: Last week, the term spread of long - term bonds widened, and the absolute level was low. The 30 - 10 spread of benchmark treasury bonds was 40BP, a 2BP change from the week before last, at the 27% quantile since 2010 [43]. - **Variety Spread**: Last week, the variety spread of long - term bonds narrowed, and the absolute level was low. The spreads between the benchmark 20 - year CDB bonds and treasury bonds, and 20 - year railway bonds and treasury bonds were 16BP and 16BP respectively, with changes of 0BP and - 4BP from the week before last, at the 13% and 11% quantiles since 2010 [44]. 30 - year Treasury Bond Futures - Last week, the main variety of 30 - year treasury bond futures, TL2603, closed at 111.41 yuan, a decrease of 1.37%. The total trading volume was 343,900 lots (- 216,035 lots), and the open interest was 142,100 lots (- 2,500 lots). The trading volume decreased significantly, and the open interest decreased slightly [48].

Group 1: Report Industry Investment Rating - No information provided Group 2: Core Views of the Report - Last week, the announced LPR rate remained unchanged. The central bank's fourth - quarter regular meeting mentioned enriching and improving the monetary policy toolbox, conducting treasury bond trading, and paying attention to changes in long - term yields. The A - share market rose sharply, the bond market continued to rebound, and ultra - long bonds rose slightly. The trading activity of ultra - long bonds decreased slightly last week but was still very active. The term spread and variety spread of ultra - long bonds narrowed last week [1][12][43]. - For the 30 - year treasury bond, as of December 26, the spread between the 30 - year and 10 - year treasury bonds was 39BP, at a historically low level. Considering economic data, the domestic economy was under pressure in November, and the GDP growth rate decreased. The deflation risk eased. The bond market is more likely to fluctuate. The 30 - 10 spread is expected to fluctuate at a high level recently [2][13]. - For the 20 - year CDB bond, as of December 26, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 16BP, at a historically extremely low position. Given economic data and market conditions, the bond market is likely to fluctuate, and the variety spread of the 20 - year CDB bond is expected to fluctuate narrowly [3][14]. Group 3: Summary by Relevant Catalogs Weekly Review Ultra - long Bond Review - The LPR rate remained unchanged last week. The central bank's meeting remarks, A - share rise led to the bond market rebound and a slight increase in ultra - long bonds. Trading activity decreased slightly but was still active. Term and variety spreads of ultra - long bonds narrowed [1][12][43]. Ultra - long Bond Investment Outlook - 30 - year Treasury Bond: Low spread, economic pressure, deflation risk relief, expected high - level spread fluctuation [2][13]. - 20 - year CDB Bond: Extremely low spread, economic pressure, expected narrow spread fluctuation [3][14]. Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds is 24.3 trillion. Local government bonds and treasury bonds are the main varieties. The 30 - year variety has the highest proportion [15]. Primary Market Weekly Issuance - Last week, the issuance volume of ultra - long bonds dropped sharply. Only 12 billion yuan of 20 - year local government bonds were issued [20]. This Week's Pending Issuance - A total of 2 billion yuan of ultra - long local government bonds are planned to be issued this week [25]. Secondary Market Trading Volume - Last week, ultra - long bonds were very actively traded with a turnover of 1.1535 trillion yuan, accounting for 12.8% of the total bond turnover. The trading activity decreased slightly compared with the previous week [26][27]. Yield - Treasury bonds, CDB bonds, local bonds, and railway bonds' yields changed last week. Representative individual bonds' yields also changed [43][44]. Spread Analysis - Term Spread: Narrowed last week, with a low absolute level. The 30 - year - 10 - year treasury bond spread was 39BP, down 2BP from the previous week, at the 21% quantile since 2010 [53]. - Variety Spread: Narrowed last week, with a low absolute level. The spreads of the 20 - year CDB bond and railway bond against treasury bonds were 16BP and 19BP respectively, down 1BP from the previous week, at the 13% quantile since 2010 [54]. 30 - year Treasury Bond Futures - Last week, the main contract TL2603 of the 30 - year treasury bond futures closed at 112.96 yuan, an increase of 0.27%. The total trading volume was 560,000 lots (down 98,144 lots), and the open interest was 144,600 lots (up 2,655 lots) [60].