超长债周报：时隔半年LPR下调10BP，债市陷入拉锯-20250525

1. Investment Rating of the Reported Industry There is no information provided regarding the industry investment rating in the given content. 2. Core Views of the Report - The bond market is in a stalemate and under slight pressure, with ultra - long bonds rising first and then falling. The trading activity of ultra - long bonds decreased slightly last week, but it was still quite active. The term spread of ultra - long bonds narrowed, and the variety spread showed mixed trends [1][4][11]. - For the 30 - year treasury bond, as of May 23, the spread between the 30 - year and 10 - year treasury bonds was 17BP, at a historically low level. With the weakening of policy support, the probability of a decline in bond yields is higher, but the term spread protection is limited [2][12]. - For the 20 - year CDB bond, as of May 23, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 2BP, at a historically extremely low level. With the weakening of policy support, the probability of a decline in bond yields is higher, but the variety spread protection is limited [3][13]. 3. Summary According to the Directory 3.1 Weekly Review 3.1.1 Ultra - long Bond Review - Last week, important events included the release of April economic data (the domestic economy declined significantly compared to March but continued to develop positively), a 500 - billion MLF operation in May with a 10BP cut in LPR after half a year, balanced funds during the tax period, and a relatively high winning bid rate for the new 10 - year treasury bond on Friday, which put slight pressure on the bond market. Overall, the bond market was in a stalemate and under slight pressure, with ultra - long bonds rising first and then falling. The trading activity of ultra - long bonds decreased slightly but remained quite active. The term spread of ultra - long bonds narrowed, and the variety spread showed mixed trends [1][4][11]. 3.1.2 Ultra - long Bond Investment Outlook - 30 - year Treasury Bond: As of May 23, the spread between the 30 - year and 10 - year treasury bonds was 17BP, at a historically low level. The April economic data showed resilience, with the estimated GDP growth rate of about 4.1% year - on - year, a 0.8% decline from March but still higher than the annual target. The CPI in April was - 0.1% and PPI was - 2.7%, indicating obvious deflation risks. With the recent easing of Sino - US trade frictions, investors' pessimistic expectations have dissipated. The short - term focus will return to the second - quarter domestic economic data. It is expected that with the weakening of policy support, the probability of a decline in bond yields is higher, but the term spread protection is limited [2][12]. - 20 - year CDB Bond: As of May 23, the spread between the 20 - year CDB bond and the 20 - year treasury bond was 2BP, at a historically extremely low level. Similar to the 30 - year treasury bond situation, with the weakening of policy support, the probability of a decline in bond yields is higher, but the variety spread protection is limited [3][13]. 3.1.3 Ultra - long Bond Basic Overview - The balance of outstanding ultra - long bonds exceeded 21.1 trillion. As of April 30, the total amount of ultra - long bonds with a remaining term of more than 14 years was 21,157.7 billion (excluding asset - backed securities and project revenue notes), accounting for 14.2% of the total bond balance. Local government bonds and treasury bonds are the main varieties. By variety, treasury bonds accounted for 25.6% (5,422.3 billion), local government bonds accounted for 68.2% (14,427.6 billion), etc. By remaining term, the 30 - year variety had the highest proportion [14]. 3.2 Primary Market 3.2.1 Weekly Issuance - Last week (from May 12 to May 16, 2025), a large amount of ultra - long bonds were issued, with a total of 242.4 billion yuan. Compared with the previous week, the total issuance of ultra - long bonds increased significantly. By variety, treasury bonds accounted for 121 billion, local government bonds accounted for 106.4 billion, etc. By term, 15 - year bonds accounted for 22.9 billion, 20 - year bonds accounted for 37.2 billion, 30 - year bonds accounted for 132.2 billion, and 50 - year bonds accounted for 50 billion [19]. 3.2.2 This Week's Pending Issuance - The announced issuance plan for ultra - long bonds this week totals 111.7 billion yuan. By variety, ultra - long treasury bonds account for 0 billion, ultra - long local government bonds account for 104.9 billion, and ultra - long medium - term notes account for 6.9 billion [23]. 3.3 Secondary Market 3.3.1 Trading Volume - Last week, the trading of ultra - long bonds was quite active, with a trading volume of 861.7 billion yuan, accounting for 10.2% of the total bond trading volume. By variety, ultra - long treasury bonds accounted for 31.4% of the total treasury bond trading volume, ultra - long local bonds accounted for 49.6% of the total local bond trading volume, etc. Compared with the previous week, the trading activity of ultra - long bonds decreased slightly, with the trading volume decreasing by 43.8 billion yuan and the proportion decreasing by 0.5%. Among them, the trading volume of ultra - long treasury bonds decreased by 49.8 billion yuan, the trading volume of ultra - long local bonds increased by 3.1 billion yuan, etc. [26]. 3.3.2 Yield - Due to multiple important events last week, the bond market was in a stalemate and under slight pressure, with ultra - long bonds rising first and then falling. For treasury bonds, the yields of 15 - year, 20 - year, 30 - year, and 50 - year bonds changed by 2BP, - 1BP, 1BP, and 3BP to 1.88%, 1.98%, 1.89%, and 2.06% respectively. For CDB bonds, the yields of 15 - year, 20 - year, 30 - year, and 50 - year bonds changed by 0BP, 0BP, 1BP, and 3BP to 1.94%, 2.00%, 2.07%, and 2.30% respectively. For local bonds, the yields of 15 - year, 20 - year, and 30 - year bonds changed by 0BP, 0BP, and - 2BP to 2.08%, 2.12%, and 2.11% respectively. For railway bonds, the yields of 15 - year, 20 - year, and 30 - year bonds changed by - 3BP, - 4BP, and 0BP to 2.00%, 2.04%, and 2.13% respectively. For representative individual bonds, the yield of the 30 - year treasury bond active bond 24 Special Treasury Bond 06 changed by 1BP to 1.95%, and the yield of the 20 - year CDB bond active bond 21 CDB 20 changed by 0BP to 1.98% [33][34]. 3.3.3 Spread Analysis - Term Spread: Last week, the term spread of ultra - long bonds narrowed, and the absolute level was low. The spread between the 30 - year and 10 - year treasury bonds was 17BP, a change of - 3BP from the previous week, at the 1% quantile since 2010 [42]. - Variety Spread: Last week, the variety spread of ultra - long bonds showed mixed trends, and the absolute level was low. The spread between the 20 - year CDB bond and the treasury bond was 2BP, and the spread between the 20 - year railway bond and the treasury bond was 5BP, changing by 2BP and - 4BP respectively from the previous week, at the 4% and 2% quantiles since 2010 [46]. 3.4 30 - year Treasury Bond Futures - Last week, the main contract of the 30 - year treasury bond futures, TL2509, closed at 119.60 yuan, an increase of 0.32%. The total trading volume was 469,900 lots (a decrease of 182,500 lots), and the open interest was 129,300 lots (an increase of 6,141 lots). The trading volume decreased significantly compared with the previous week, while the open interest increased slightly [48].