信用周报：二永还能继续参与吗？-20250924

1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - Last week, the bond market sentiment was volatile, with interest rates showing a V-shaped oscillation. Credit bonds also had mixed performance, with the over - sold second - tier and perpetual (二永) bonds partially recovering, while ultra - long - term credit bonds continued to perform poorly. The cost - effectiveness of coupon assets has increased [1][4][10]. - 2 - 5 - year bank secondary capital bonds can continue to be considered; a strategy of sinking into 1 - 3 - year weak - quality urban investment bonds is recommended, as the riding income of about 3 - year varieties with a yield of over 2.2% is quite significant. Ultra - long - term credit bonds have improved in coupon cost - effectiveness after continuous adjustment, but only allocation - type institutions are advised to consider them due to the lack of marginal improvement in liquidity [4][25]. 3. Summary According to the Catalog 3.1 Bond Market Performance - Interest Rate Bonds: The overall trend of interest rate bonds was oscillatory last week. The active 10 - year Treasury bond fluctuated between 1.76% - 1.81%, with the bearish force slightly stronger and the bond price weakening over the week [1][10]. - Credit Bonds: Different - term credit bond varieties showed differentiated performance. The yields of 1Y - 5Y Treasury bonds and AAA, AA + medium - and short - term notes changed to varying degrees from September 15th to September 19th, 2025. Ultra - long - term credit bonds continued to weaken, with the decline of 10Y varieties generally exceeding that of the same - term interest rate bonds [10][11][12]. 3.2 Secondary - tier and Perpetual (二永) Bonds - Yield Changes: After over - adjustment the week before last, the yields of 1Y - 5Y of secondary - tier and perpetual bonds decreased, while those of ultra - long - term parts were similar to ultra - long - term credit bonds. The yields of 1 - 5 years, 7 years, and 10 years of AAA - bank secondary capital bonds decreased by 1.19BP, 1.21BP, 2.58BP, 0.53BP, 1.51BP respectively, and increased by 1.63BP and 3.53BP respectively [2][17]. - Trading Situation: In the first half of the week, the sentiment for recovery was high, while in the second half, it was more pessimistic. From September 15th to September 19th, the proportion of low - valuation transactions of secondary - tier and perpetual bonds was 100.00%, 100.00%, 100.00%, 0.00%, 2.44% respectively; the average trading durations were 6.16 years, 4.66 years, 5.01 years, 1.07 years, 0.96 years respectively. The discount trading amplitude was generally within 2BP, and there were only 8 transactions with an amplitude of over 3BP [18][20]. 3.3 Ultra - long - term Credit Bonds - Selling Pressure: The institutional selling of ultra - long - term credit bonds continued to strengthen throughout the week, but it was not a typical urgent selling situation. From September 15th to September 19th, the proportion of discount transactions was 56.10%, 70.73%, 48.78%, 65.85%, 78.05% respectively, and most of the discount amplitudes were within 4BP [3][21]. - Buying Willingness: The market's willingness to buy ultra - long - term credit bonds remained weak, and high - activity transactions were mainly concentrated in weak - quality urban investment bonds. The proportion of transactions below the valuation was 26.83%, 9.76%, 36.59%, 21.95%, 7.32% respectively. However, about 25% of the transactions below the valuation had an amplitude of over 4BP, mainly in 2 - 5 - year weak - quality urban investment bonds [3][22][27]. 3.4 Curve Shape and Yield Quantiles - Curve Steepness: The steepness of the 1 - 2 - year and 2 - 3 - year segments of the full - grade yield curve was the highest, and it was steeper than that after the sharp decline at the end of July. Taking AA + medium - term notes and AA urban investment bonds as examples, the slopes of different segments were calculated [13]. - Yield Quantiles: From September 15th to September 19th, 2025, the 1Y - 3Y coupon assets had a certain cost - effectiveness, but the credit spread protection was insufficient. The valuation yields to maturity of 1Y - AAA, 3Y - AAA, etc. were at the corresponding quantiles since 2024, and the historical quantiles of credit spreads were also provided [14][16].