超长债周报：四季度GDP增速4.5%，超长债补涨-20260125

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].