Core Viewpoint - The bond market continues to show weakness, particularly in the ultra-long end, with rising yields and a notable supply-demand imbalance [1][7]. Market Performance - On December 8, the bond market experienced a general increase in yields, with the 30-year government bond yield rising by 1.75 basis points to 2.269% and the 50-year bond yield increasing by 3.9 basis points to 2.415% [2]. - The China Securities Convertible Bond Index rose by 0.40% to 483.93 points, with significant gains in several convertible bonds [2]. International Bond Market - In North America, U.S. Treasury yields rose across the board, with the 10-year yield increasing by 3.89 basis points to 4.137% [3]. - In Asia, Japanese bond yields also increased, with the 10-year yield rising by 2.3 basis points to 1.972% [4]. Primary Market - Agricultural Development Bank's financial bonds had competitive bidding, with the 5-year bond yield at 1.7772% and a bid-to-cover ratio of 3.03 [5]. - The Xinjiang Production and Construction Corps' local bonds saw bid-to-cover ratios exceeding 10, indicating strong demand [5]. Liquidity and Funding - The central bank conducted a reverse repurchase operation of 1,223 billion yuan, resulting in a net injection of 147 billion yuan for the day [6]. - Short-term funding rates, as indicated by Shibor, have generally increased, with the overnight rate rising to 1.302% [6]. Institutional Perspectives - Huatai Fixed Income suggests that while the ultra-long bonds have seen some risk release, the overall market remains cautious, with expectations of increased volatility in ultra-long bonds [7][8]. - Industry analysts from Guosheng Fixed Income do not foresee a significant long-term increase in ultra-long bond spreads but acknowledge short-term risks due to potential market shocks from institutional selling [8].

Group 1: Report Industry Investment Rating - No industry investment rating is provided in the report. Group 2: Core Viewpoints of the Report - The significant decline in ultra - long bonds is not expected to lead to a significant and continuous increase in the ultra - long bond spread in the long - term. However, short - term risks need further observation. As year - end bank indicator pressures ease, fund and brokerage positions decrease, and insurance allocation demand recovers, the ultra - long bond spread is expected to repair. But short - term risks, especially potential market shocks from concentrated selling by trading institutions, are hard to judge [5][21]. Group 3: Summary by Related Content Current Situation of Ultra - long Bonds - Recently, while other bonds remained stable, ultra - long bonds declined significantly. Since last Friday, medium - and short - term bonds were stable, with 2 - year and 5 - year Treasury yields fluctuating less than 1bp, and the 10 - year Treasury yield rising slightly by 1.1bp. In contrast, the 30 - year Treasury yield rose by 5.0bp, and the 50 - year Treasury yield rose by 5.9bp. This widened the spread between 30 - year and 10 - year bonds to 38.3bps, approaching the highs in late September and early October [1][8]. Reasons for the Weakening of Ultra - long Bonds - Banks' ability to hold long - term bonds is restricted by indicators such as △EVE and the Tier 1 capital ratio close to the 15% regulatory red line, which may lead to selling of long - term bonds to meet requirements or realize floating profits [2][10]. - The public fund fee reform may increase redemption pressure, and year - end net value drawdowns may exacerbate passive redemptions, causing trading institutions like funds and brokerages to reduce long - bond holdings [2][10]. - Insurance institutions' liability growth has slowed in the past two months, with a shift in allocation towards stocks. Insurance premium income growth was negative in September and October, and the proportion of bonds in asset allocation decreased slightly while the stock proportion increased [2][10]. Attractiveness of Ultra - long Bonds - From the perspective of the overall asset portfolio, the increase in ultra - long bond spreads enhances the cost - effectiveness of the barbell portfolio. With the same duration, the barbell portfolio's return is higher than that of the bullet portfolio, increasing the demand for ultra - long bonds and promoting a shift towards a barbell - shaped portfolio [3][12]. - In terms of absolute return, the increase in ultra - long bond yields makes them more attractive compared to other assets. The spread between the 30 - year Treasury and personal mortgage rates is at its lowest since Q3 2017, and considering tax, bad debts, and capital occupation, bonds are more cost - effective than loans. Ultra - long bond yields can cover the liability costs of insurance and banks, and with the slowdown in real - estate sales, future inflows of household deposits and insurance premiums are expected to increase, so the liability side is not a constraint for institutional allocation [4][14]. - Based on previous pricing of the 30 - 10 - year spread using factors like funding prices, net ultra - long bond financing, stock market performance, and ultra - long bond turnover, the current 30 - 10 - year spread is close to the upper limit of one standard deviation, indicating that ultra - long bonds are still within a reasonable range [4][17].

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The supply of ultra - long government bonds is expected to remain at a high level in 2026, with the issuance scale possibly reaching 6.7 trillion yuan. Meanwhile, the demand side may experience a marginal slowdown, so attention should be paid to the upward pressure on the ultra - long - end spread in 2026 [3][14][31] - The trading rhythm of the current bond market may be different from previous years. Without a rate cut, there is limited room for compression of short - term and term spreads, and the bond market may not have an obvious trending market [6][32] 3. Summary by Related Catalogs 3.1 Strategy Thinking: Concerns about the Supply and Demand of Ultra - long Bonds - **Supply - side situation** - The supply of government bonds shows a "long - term" characteristic, which is likely to continue in 2026. The proportion of government bonds with a term of over 10 years in 2024 - 2025 was about a quarter. In 2026, the total issuance of government bonds is estimated to be 25.8 trillion yuan, and the issuance scale of ultra - long - end government bonds may reach 6.7 trillion yuan [3][9][14] - The long - term trend in government bond supply is due to factors such as the need to disperse maturity peaks, lock in long - term financing costs, the shift of fiscal expenditure to long - term projects, and the issuance of special bonds [13] - **Demand - side situation** - The "strong demand + improved liquidity" pattern may not continue. The improvement in ultra - long - end liquidity is approaching its limit, and its marginal contribution to compressing term spreads is weakening [5][18][19] - Demand from various institutions is expected to decline marginally. Funds may continue to reduce their demand for ultra - long bonds; the insurance industry's allocation intensity may slow down; wealth management products have limited demand for ultra - long bonds; and banks mainly passively accept supply [5][21][31] 3.2 Transaction Review: Increase in Medium - and Long - term Yields - **Central bank operations and funds** - The central bank had a net capital withdrawal of 642 billion yuan this week, but the MLF had a net injection of 100 billion yuan. The funds smoothly crossed the month, and the central levels of DR001, DR007, and DR014 decreased [33] - **Yield changes** - Most medium - and long - term treasury bond yields increased this week. The 10 - year treasury bond yield rose 2bp to 1.84%, and the 10 - 1 term spread widened by 2bp to 44bp [35] - The yield first increased and then decreased. It was affected by market expectations, bond price fluctuations of Vanke, and broad - money expectations during the week [35][36] - **Other indicators** - The median duration of public funds decreased by 0.04 to 2.96 years from November 24th to November 28th, and the duration divergence index remained at 0.56 [41] - Among the ten interest rate synchronization indicators, "positive" and "negative" signals each accounted for 5/10, and the US dollar index sent a "negative" signal [43]

Report Industry Investment Rating No relevant content provided. Core Viewpoints of the Report - Last week, due to tight liquidity during the tax period and a sharp decline in the A - share market, the bond market fluctuated narrowly with slightly rising yields, and ultra - long bonds declined slightly. The trading activity of ultra - long bonds increased slightly and was very active. The term spread of ultra - long bonds remained flat, and the variety spread narrowed [1][3][10]. - As of November 21, the spread between 30 - year and 10 - year treasury bonds was 34BP, at a relatively low historical level. The spread between 20 - year CDB bonds and 20 - year treasury bonds was 13BP, at an extremely low historical position. Considering the economic situation and market sentiment, the probability of a bond market rebound is higher, and the spreads are expected to compress [2][3][11]. Summary by Relevant Catalogs Weekly Review - **Ultra - long Bond Review**: Last week, tight tax - period liquidity, a sharp A - share decline led to a narrow - range bond market with slightly rising yields and a small decline in ultra - long bonds. Trading activity increased slightly and was very active. The term spread remained flat, and the variety spread narrowed [1][10]. - **Ultra - long Bond Investment Outlook** - **30 - year Treasury Bonds**: As of November 21, the 30 - 10 spread was 34BP. In October, economic downward pressure increased, with GDP growth at about 4.2% (down 1.1% from September), and deflation risks remained. The bond market is likely to rebound, and the 30 - 10 spread is expected to compress [2][11]. - **20 - year CDB Bonds**: As of November 21, the 20 - year CDB - treasury spread was 13BP. Similar to the 30 - year treasury bond situation, the bond market is likely to rebound, and the 20 - year CDB bond variety spread is expected to continue compressing [3][12]. - **Ultra - long Bond Basic Overview**: As of October 31, the balance of ultra - long bonds was 23.9 trillion, accounting for 15.0% of all bonds. Local government bonds and treasury bonds were the main varieties. By remaining term, the 30 - year variety had the highest proportion [13]. Primary Market - **Weekly Issuance**: Last week (November 17 - 21, 2025), ultra - long bond issuance decreased to 886 billion yuan. By variety, local government bonds were 811 billion, and bank sub - bonds were 65 billion. By term, 15 - year bonds were 395 billion, 20 - year were 191 billion, and 30 - year were 300 billion [18]. - **This Week's Planned Issuance**: This week's announced ultra - long bond issuance plan is 155 billion yuan, mainly including 153.8 billion yuan of ultra - long local government bonds [24]. Secondary Market - **Trading Volume**: Last week, ultra - long bond trading was very active, with a turnover of 926.1 billion yuan, accounting for 11.3% of all bonds. The trading activity increased slightly compared to the previous week [28]. - **Yield**: Last week, due to tight liquidity and A - share decline, bond yields rose slightly, and ultra - long bonds declined slightly. Yields of different - term treasury bonds, CDB bonds, local bonds, and railway bonds changed accordingly [38]. - **Spread Analysis** - **Term Spread**: Last week, the ultra - long bond term spread remained flat, with an absolute low level. The 30 - 10 treasury bond spread was 34BP, unchanged from the previous week, at the 14% percentile since 2010 [49]. - **Variety Spread**: Last week, the ultra - long bond variety spread narrowed, with an absolute low level. The 20 - year CDB - treasury spread and 20 - year railway - treasury spread decreased by 2BP, at the 11% and 12% percentiles since 2010 [50]. 30 - year Treasury Bond Futures - Last week, the 30 - year treasury bond futures main contract TL2512 closed at 115.57 yuan, down 0.51%. Trading volume increased slightly, and open interest decreased slightly [54].

Report Industry Investment Rating No information provided in the given content. Core Viewpoints - Last week, due to tight liquidity during the tax - payment period and a sharp decline in the A - share market, the bond market fluctuated narrowly with slightly rising yields, and ultra - long bonds declined slightly. The trading activity of ultra - long bonds increased slightly and was very active. The term spread of ultra - long bonds remained flat, and the variety spread narrowed [1][10]. - For the 30 - year treasury bond, as of November 21, the spread between the 30 - year and 10 - year treasury bonds was 34BP, at a relatively low historical level. Considering the economic pressure in Q4 and positive investor sentiment, the bond market is more likely to rebound, and the 30 - 10 spread is expected to compress periodically [2][11]. - For the 20 - year CDB bond, as of November 21, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 13BP, at a historically extremely low level. With economic pressure in Q4 and positive investor sentiment, the bond market is likely to rebound, and the variety spread of the 20 - year CDB bond is expected to continue to compress in the short term [3][12]. Summary by Directory Weekly Review Ultra - long Bond Review - Last week, tight tax - period liquidity and a sharp A - share decline led to a narrow - range bond market oscillation with slightly rising yields, and ultra - long bonds fell slightly. Trading activity increased slightly and was very active. The term spread remained flat, and the variety spread narrowed [1][10]. Ultra - long Bond Investment Outlook - **30 - year Treasury Bond**: As of November 21, the 30 - 10 spread was 34BP. In October, economic downward pressure increased, with GDP growth at about 4.2% (down 1.1% from September), and deflation risks persisted. The bond market is more likely to rebound, and the 30 - 10 spread is expected to compress periodically [2][11]. - **20 - year CDB Bond**: As of November 21, the 20 - year CDB - treasury spread was 13BP. In October, economic downward pressure increased, with GDP growth at about 4.2% (down 1.1% from September), and deflation risks persisted. The bond market is likely to rebound, and the 20 - year CDB bond variety spread is expected to continue to compress in the short term [3][12]. Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds is 23.9 trillion. As of October 31, ultra - long bonds with a remaining maturity of over 14 years totaled 239,836 billion, accounting for 15.0% of all bonds. Local government bonds and treasury bonds are the main varieties. By remaining maturity, the 25 - 35 - year variety accounts for the highest proportion [13]. Primary Market Weekly Issuance - Last week (November 17 - 21, 2025), the issuance of ultra - long bonds decreased. A total of 886 billion yuan of ultra - long bonds were issued, a significant drop from the week before. By variety, local government bonds accounted for 811 billion, and company bonds and bank sub - bonds also had issuances. By term, 15 - year, 20 - year, and 30 - year bonds were issued [18]. This Week's Planned Issuance - The announced ultra - long bond issuance plan for this week totals 1,550 billion yuan, mainly local government bonds, with a small amount of company bonds and medium - term notes [24]. Secondary Market Trading Volume - Last week, ultra - long bonds were very actively traded, with a turnover of 9,261 billion yuan, accounting for 11.3% of all bond turnovers. By variety, ultra - long treasury bonds, local bonds, etc. had different turnovers and proportions. Trading activity increased slightly compared to the week before [28]. Yield - Last week, tight tax - period liquidity and a sharp A - share decline led to a narrow - range bond market oscillation with slightly rising yields, and ultra - long bonds fell slightly. Yields of different - term treasury bonds, CDB bonds, etc. had corresponding changes [3][38]. Spread Analysis - **Term Spread**: Last week, the term spread of ultra - long bonds remained flat, with an absolute low level. The 30 - 10 treasury bond spread was 34BP, unchanged from the week before, at the 14% quantile since 2010 [49]. - **Variety Spread**: Last week, the variety spread of ultra - long bonds narrowed, with an absolute low level. The 20 - year CDB - treasury spread was 13BP, and the 20 - year railway bond - treasury spread was 18BP, both down 2BP from the week before, at the 11% and 12% quantiles since 2010 respectively [50]. 30 - year Treasury Bond Futures - Last week, the main 30 - year treasury bond futures contract TL2512 closed at 115.57 yuan, down 0.51%. Total trading volume was 714,600 lots (up 188,951 lots from the week before), and open interest was 176,300 lots (down 3,026 lots from the week before) [54].

Group 1: Report Industry Investment Rating - No information provided Group 2: Core View of the Report - The spread of ultra-long bonds has reached a new high. The yield center of ultra-long credit bonds has continued to rise, the primary issuance has stopped, and the secondary market has shown weak performance. Due to the lack of incremental capital support, the duration strategy still needs to be cautious before the market sentiment significantly recovers [2][3][4] Group 3: Summary According to the Directory 1. Stock Market Characteristics - The yield center of ultra-long credit bonds has continued to rise. During the week of September 29 - September 30, 2025, the bond market sentiment remained weak, and the interest rate center of stock ultra-long credit bonds further increased. Compared with the previous week, the number of stock ultra-long credit bonds with a yield of 2.6% - 2.7% increased to 248 [2][11][12] 2. Primary Issuance Situation - There was no issuance of ultra-long credit bonds in the week before the National Day [3][20] 3. Secondary Trading Performance - The decline of the ultra-long credit bond index was greater than that of other mainstream bond varieties. This week, the index prices of medium - short - term credit bonds and bank sub - debt showed signs of stabilization, but the ultra-long credit bond index still led the decline. The index of AA + credit bonds with a maturity of over 10 years decreased by 0.24% month - on - month [4][21] - The liquidity of ultra-long credit bonds was under pressure. Within two trading days this week, the total number of transactions of general credit bonds with a maturity of over 7 years was 62, and the trend of weakening liquidity continued. In terms of long - bond pricing, the yield and spread of ultra-long credit bonds both increased in the latest week. The increase in the transaction yield of general credit bonds with a maturity of over 10 years was at the forefront, and the spread with 20 - 30 - year treasury bonds widened to over 50bp [4][24] - The trading sentiment of ultra-long credit bonds was weak. The TKN ratio of varieties with a maturity of over 10 years was at a low level, and the deviation of high - valuation transactions was much higher than that of long - term bonds with a maturity of less than 10 years [4][28] - In terms of the investor structure, funds continued to sell ultra-long credit bonds. Concerns about controlling duration risk and the liquidity flaws of the varieties still affected the allocation behavior of trading desks. The purchasing power of institutions such as insurance and wealth management was limited, and the allocation desks had not formed effective support. It was difficult to reverse the adjustment trend of ultra-long credit bonds in the short term [4][32] - From a more microscopic perspective, the spread between active ultra-long credit bonds of each maturity and treasury bonds of similar maturities rose to a 24 - year high this week, and the spread of varieties around 10 years widened to a new high this year. Looking forward, although the coupon advantage of ultra-long credit bonds is apparent after the adjustment, due to the lack of incremental capital support, the duration strategy still needs to be cautious before the market sentiment significantly recovers [4][34]

1. Report Industry Investment Rating There is no information provided regarding the report industry investment rating in the given content. 2. Core Viewpoints of the Report - The yield spread of ultra - long bonds has reached a new high. The adjustment trend of ultra - long credit bonds is difficult to reverse in the short term, and the duration strategy needs to be cautious [4][34] - Although the coupon advantage of ultra - long credit bonds is apparent after adjustment, due to the lack of incremental funds and the weak market sentiment, investors should be prudent in adopting the duration strategy [4][34] 3. Summaries According to the Directory 3.1存量市场特征 - The yield center of ultra - long credit bonds has been continuously rising. From September 29 to 30, 2025, the interest rate center of existing ultra - long credit bonds further increased. The number of existing ultra - long credit bonds with a yield of 2.6% - 2.7% increased to 248 compared to the previous week [2][12] 3.2一级发行情况 - There was no issuance of ultra - long credit bonds in the week before the National Day [3][20] 3.3二级成交表现 - The decline of the ultra - long credit bond index was greater than that of other mainstream bond varieties. From September 29 to 30, 2025, the index prices of medium - short - term credit bonds and bank sub - debt showed signs of stabilization, but the ultra - long credit bond index continued to lead the decline. The index of AA + credit bonds with a term of over 10 years decreased by 0.24% week - on - week [4][21] - The liquidity of ultra - long credit bonds was under pressure. In two trading days of the week, the total number of transactions of general credit bonds with a term of over 7 years was 62, indicating a weakening trend. The yield and spread of ultra - long credit bonds both increased, and the spread between general credit bonds with a term of over 10 years and 20 - 30 - year treasury bonds widened to over 50bp [4][24] - The trading sentiment of ultra - long credit bonds was weak. The TKN ratio of varieties with a term of over 10 years was at a low level, and the deviation of high - valuation transactions was much higher than that of bonds with a term of less than 10 years [4][28] - In terms of investor structure, funds continued to sell ultra - long credit bonds. Concerns about duration risk and liquidity flaws affected the allocation decisions of trading desks. The support from insurance and wealth - management institutions was limited, and the adjustment trend of ultra - long credit bonds was difficult to reverse in the short term [4][32] - From a more microscopic perspective, the spread between active ultra - long credit bonds of each term and treasury bonds of similar terms reached a 24 - year high this week, and the spread of varieties around the 10 - year term reached a new high for the year [34]