超长债周报：反内卷通缩预期好转，超长债暴跌-20250727

Report Industry Investment Rating No relevant content provided. Core Views of the Report - Affected by expectations and emotions, the bond market tumbled this week. The official unveiling of a super hydropower project drove up resource stocks, with the A-share market reaching 3,600 points, suppressing the bond market. The introduction of anti-involution policies led to the limit-up of multiple commodity futures prices, reducing investors' concerns about deflation [1][4][12][35]. - As of July 25, the spread between 30-year and 10-year treasury bonds was 24BP, at a historically low level. The spread between 20-year China Development Bank bonds and 20-year treasury bonds was 2BP, at a historically extremely low position. Although the stock market's strength suppresses bond market sentiment, the domestic economy still faces downward pressure, and the fundamentals supporting the bond market have not yet shown an inflection point. The actual effect of "anti-involution" remains to be tested. The risk of 10-year treasury bonds above 1.7% has been initially released, but the term spread and variety spread protection for 30-year treasury bonds and 20-year China Development Bank bonds are limited [2][3][13][14]. Summary by Relevant Catalogs Weekly Review Ultra-long Bond Review - Affected by expectations and emotions, the bond market tumbled this week. The super hydropower project and anti-involution policies influenced the market. Last week, ultra-long bond trading activity increased significantly, and the term spread widened while the variety spread narrowed [1][4][12]. Ultra-long Bond Investment Outlook - 30-year Treasury Bonds: As of July 25, the 30-year - 10-year treasury bond spread was 24BP, historically low. In June, the domestic economy showed resilience but weak domestic demand. GDP grew about 5.2% year-on-year, up 0.1% from May, still above the annual target, but the growth rates of social consumption and investment declined. CPI was 0.1%, PPI -3.6%, with deflation risks. The stock market suppresses bond sentiment, but the economic downward pressure persists, and the "anti-involution" effect is uncertain. The risk of 10-year treasury bonds above 1.7% has been initially released, but the term spread protection is limited [2][13]. - 20-year China Development Bank Bonds: As of July 25, the 20-year CDB - 20-year treasury bond spread was 2BP, historically extremely low. The economic situation in June was similar to that of 30-year treasury bonds. The stock market suppresses bond sentiment, the economic downward pressure remains, and the "anti-involution" effect is uncertain. The risk of 10-year treasury bonds above 1.7% has been initially released, but the variety spread protection is limited [3][14]. Ultra-long Bond Basic Overview - The balance of outstanding ultra-long bonds exceeded 22.2 trillion. As of June 30, the total amount of ultra-long bonds with a remaining term of over 14 years was 222,528 billion, accounting for 14.5% of all bonds. Local government bonds and treasury bonds were the main varieties. By remaining term, the 30-year variety had the highest proportion [15]. Primary Market Weekly Issuance - Last week (July 7 - 11, 2025), the issuance of ultra-long bonds increased slightly, totaling 2,950 billion yuan. By variety, treasury bonds were 830 billion, local government bonds 1,810 billion, etc. By term, 15-year bonds were 618 billion, 20-year bonds 744 billion, and 30-year bonds 1,588 billion [20]. This Week's Planned Issuance - The announced issuance plan for ultra-long bonds this week totals 1,719 billion yuan, including 350 billion in ultra-long treasury bonds, 1,262 billion in ultra-long local government bonds, etc. [26]. Secondary Market Trading Volume - Last week, ultra-long bond trading was very active, with a turnover of 14,782 billion yuan, accounting for 15.0% of all bond turnover. By variety, ultra-long treasury bonds had a turnover of 11,654 billion yuan, ultra-long local bonds 2,541 billion yuan, etc. Compared with the previous week, trading activity increased significantly [28]. Yield - Affected by expectations and emotions, the bond market tumbled this week. The yields of various ultra-long bonds changed. For example, the yields of 15-year, 20-year, 30-year, and 50-year treasury bonds changed by 6BP, 9BP, 8BP, and 7BP to 1.87%, 1.99%, 1.97%, and 2.02% respectively [35]. Spread Analysis - Term Spread: Last week, the ultra-long bond term spread widened, but the absolute level was low. The 30-year - 10-year treasury bond spread was 24BP, up 2BP from the previous week, at the 8% percentile since 2010 [47]. - Variety Spread: Last week, the ultra-long bond variety spread narrowed, and the absolute level was low. The spreads between 20-year China Development Bank bonds and treasury bonds, and 20-year railway bonds and treasury bonds were 2BP and 6BP respectively, down 2BP and 1BP from the previous week, at the 3% percentile since 2010 [50]. 30-year Treasury Bond Futures - Last week, the main 30-year treasury bond futures variety TL2509 closed at 117.95 yuan, a decline of 2.08%. The total trading volume was 781,200 lots (342,890 lots), and the open interest was 160,200 lots (10,208 lots). The trading volume increased significantly compared with the previous week, and the open interest increased slightly [52].