信用周报：四季度，票息性价比提升-20251006

1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - In the fourth quarter, the cost - effectiveness of the coupon strategy is further enhanced against the backdrop of high uncertainty in the bond market direction. The 1 - 3 - year weak - qualification urban investment sinking strategy is recommended, and the yields of 1 - 2 - year AA(2), 2 - 3 - year AA, and AA(2) urban investment bonds are between 2.09% - 2.32%, with a large balance of outstanding bonds. Second, the super - decline feature of secondary perpetual (Er Yong) bonds is obvious, and the yields of 3 - year large - bank capital bonds and 2 - year AA perpetual bonds are between 2.0% - 2.07%, having fallen to a level with coupon value. The 4 - 5 - year large - bank capital bonds have a large decline in this round of adjustment, and the current yields are all above 2.1%, which are high - quality coupon assets for accounts with stable liability ends. For ultra - long - term bonds, although the cost - effectiveness of coupons continues to increase after adjustment, the liquidity has not seen marginal improvement, and it is still only recommended for allocation - type institutions to consider [3][35]. 3. Summary by Relevant Catalog Current Bond Market Situation - Last week, the bearish force in the bond market remained strong, but with the bond - buying by large banks and the central bank's liquidity support, interest rates generally stabilized, while the decline of credit bonds was relatively high, especially for Er Yong bonds and ultra - long - term credit bonds, showing an "over - decline" trend. From September 22 to September 26, 2025, the yields of 1Y, 2Y, 3Y, 4Y, 5Y treasury bonds decreased by 0.7BP, increased by 2.7BP, 2.8BP, 1.8BP, 0.5BP respectively, while the yields of AAA medium - term notes with the same maturities increased by 5.3BP, 6.5BP, 6.8BP, 9.0BP, 9.7BP respectively [1][10]. - The performance of ultra - long - term credit bonds continued to weaken, with the decline exceeding that of the same - maturity interest - rate bonds. The yields of 10Y AAA/AA + medium - term notes increased by 11.32BP and 10.32BP respectively, and the yields of 10Y AAA/AA + urban investment bonds increased by 11.90BP and 8.90BP respectively. The yield of 10Y AAA - bank secondary capital bonds increased by 16.19BP, while the yield of 10Y treasury bonds recovered by 0.21BP [1][12][13]. - The "volatility amplifier" feature of Er Yong bonds reappeared, with the decline of each maturity exceeding that of ordinary credit bonds. The yields of 1 - 5 - year, 7 - year, and 10 - year AAA - bank secondary capital bonds increased by 5.15BP, 8.94BP, 11.60BP, 12.29BP, 17.93BP, 18.31BP, 16.19BP respectively. The part of the curve above 2 - year is still 30BP - 63BP away from the lowest yield point since 2025, and the yields of maturities above 3 - year have exceeded the levels of the bear - flattening period in the first quarter [2][17]. Analysis of Trading Behavior - In terms of active trading, the bearish force of Er Yong bonds was strong overall, with the selling force of trading desks stronger than the buying force of allocation desks. From September 22 to September 26, the proportion of low - valuation transactions of Er Yong bonds was 92.50%, 0.00%, 0.00%, 10.00%, 100.00% respectively. Last week, trading desks represented by public funds strongly sold Er Yong bonds and only had net purchases of short - term credit products. At the same time, allocation desks such as wealth management and insurance institutions bought oversold Er Yong bonds at high prices, but the buying force was weaker than the selling force of public funds [2][19][20]. - The selling market of ultra - long - term credit bonds continued to strengthen throughout the week. From September 22 to September 26, the proportion of discount transactions of ultra - long - term credit bonds was 65.00%, 72.50%, 95.00%, 100.00%, 75.00% respectively. The discount range was not low, and about 25.5% of the discount transactions had a range of more than 4BP, indicating a strong selling willingness in the market [22]. Comparison of the Two Rounds of Bond Market Adjustments in 2025 - The bond market adjustment in the first quarter was mainly driven by the unexpected tightening of the capital market, resulting in weaker performance of the short - and medium - term credit bonds. The yields of 1 - 5 - year AAA urban investment bonds increased by more than 40bp, while the yields of long - term bonds increased by less than 35bp [26][29]. - The bond market adjustment since mid - July in the third quarter was mainly due to the strong performance of the commodity and equity markets, which increased institutional risk appetite. Institutions were very cautious about duration, and short - duration bonds had strong anti - decline properties. From July 18 to September 29, the yield increase of 1 - year urban investment bonds was within 15bp, while the yields of AAA and AA + urban investment bonds with maturities of 7 - year and above increased by more than 40bp [26][32].