超长债周报：年末资金面宽松，超长债继续反弹-20251228

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].