1. Report's Industry Investment Rating - There is no mention of the industry investment rating in the report. 2. Core Viewpoints of the Report - Since mid - July 2025, credit spreads have been in a low - level oscillation pattern. The duration of the low - level credit spreads depends on interest rate trends and liquidity. The shift from low - level oscillation to widening is usually accompanied by rising interest rates and institutional behavior disturbances [15]. - During the low - level oscillation of credit spreads, different varieties perform differently. High - cost - effective varieties favored by institutions have larger compression amplitudes. The amplitude of credit spreads of each variety is not small, especially in longer periods, and the cost - effectiveness can be judged by the position of credit spreads in the oscillation range [23][24]. - In December, institutions still have the willingness to allocate assets in advance for the next year. If interest rates oscillate downward and the capital side is stable, it is conducive to maintaining the low - level oscillation of credit spreads, but the buying power of credit bonds usually weakens, which may restrict the market performance [27]. 3. Summary According to the Directory 3.1 Credit Spreads in the Low - Level Oscillation Period: How to Allocate 3.1.1 Credit Bonds: The Cost - Effectiveness of 3 - Year Varieties Increases - In November, interest rates were in a low - volatility oscillation and rose slightly. Credit bond yields generally increased, with high - rating varieties, 3 - year, and 10 - year bonds performing relatively weakly. Credit spreads showed a differentiated trend, with 1 - year spreads basically unchanged, 3 - year spreads widening by 3 - 6bp, and spreads of AA+ and below 5 - year bonds narrowing by 5 - 8bp [11]. - The buying power of credit bonds weakened from strong to weak in November, and the proportion of transactions within 1 year continued to increase. Funds still had a large net purchase of credit bonds, while the net purchase of credit bonds by wealth management products, other asset management products, and money market funds decreased year - on - year [11][12]. - Since mid - July 2025, credit spreads have shown a low - level oscillation pattern. By reviewing the three previous periods of low - level credit spread oscillation since 2021, three rules were summarized. The duration of low - level credit spreads depends on interest rate trends and liquidity; different varieties perform differently during the low - level oscillation; and the amplitude of credit spreads in the low - level oscillation period is not small, and cost - effective varieties can be judged by their positions [15][23][24]. - In December, institutions still have the willingness to allocate assets in advance, but the decline in interest rates driven by transactions may be less than in previous Decembers due to the new regulations on fund sales fees. If interest rates oscillate downward and the capital side is stable, it is conducive to maintaining the low - level oscillation of credit spreads, but the buying power usually weakens [27]. - Currently, the credit spreads of 3 - year and 10 - year varieties have relatively high cost - effectiveness. It is recommended to control the duration of credit bond allocation and seize structural opportunities. In December, the opening scale of amortizing bond funds is still large, which may boost the demand for 2 - 3 - year credit bonds. For accounts with stable liability ends, they can pre - layout medium - to high - grade 5 - year varieties [32][35]. 3.1.2 Bank Perpetual and Tier - 2 Bonds: Wait for the New Regulations on Fund Sales Fees to be Implemented - In November, the yields of bank perpetual and tier - 2 bonds generally increased, with large - scale banks performing weaker. The spreads of large - scale bank bonds mostly widened, while the spreads of 4 - 5 - year AA - perpetual bonds narrowed. Compared with medium - and short - term notes of the same term, large - scale bank bonds were generally oversold [39]. - Currently, bank perpetual and tier - 2 bonds are waiting for the official release of the new regulations on fund sales fees. The trading sentiment of trading accounts is cautious, but the demand of some allocation accounts has increased. In December, due to the weak buying power of credit bonds and potential valuation fluctuations, accounts with unstable liability ends are advised to participate cautiously, while some accounts with stable liability ends can consider allocating medium - to high - grade varieties [40][44]. 3.2 Urban Investment Bonds: Net Financing Declined Year - on - Year, and Ultra - Long - Term Bonds Performed Well - In November, the net financing of urban investment bonds was positive, but both year - on - year and month - on - month declined. The issuance of medium - and long - term bonds increased, and the weighted average issuance interest rate generally decreased [47]. - The net financing performance of each province was differentiated in November, with about one - third of the provinces having negative net financing. The yields of urban investment bonds showed a differentiated performance, with medium - to high - grade varieties generally increasing and low - grade long - term varieties slightly decreasing [48][50]. - From the perspective of broker transactions, the buying sentiment of urban investment bonds weakened in November, with the TKN ratio and low - valuation ratio both decreasing. The trading of medium - and long - term bonds was active in the first three weeks, and the trading proportion of AA(2) bonds increased slightly [57]. 3.3 Industrial Bonds: Supply Increased Significantly, and the Proportion of Medium - and Long - Term Issuance Rose - In November, the issuance and net financing of industrial bonds increased significantly year - on - year. The issuance of medium - and long - term bonds increased, and the issuance interest rate generally decreased, with a larger decline in the 3 - 5 - year term [60][61]. - The yields of industrial bonds showed a differentiated performance, with medium - to high - grade yields generally increasing and 3 - 5 - year low - grade yields declining against the trend. The spreads of 3 - 5 - year AAA, 3 - year AA+ and AA widened, while the spreads of other varieties mostly narrowed [64]. - The yields of public bonds in various industries generally increased slightly. High - grade medium - and long - term varieties performed weaker, while the 3 - 5 - year AA yields generally declined [67]. 3.4 Bank Perpetual and Tier - 2 Bonds: Supply Increased, and Trading Sentiment Weakened - In November, the supply of bank perpetual and tier - 2 bonds increased significantly, with both issuance and net financing increasing year - on - year. The yields of these bonds generally increased, with large - scale bank medium - and long - term varieties performing weaker. The spreads of large - scale bank bonds mostly widened, and compared with medium - and short - term notes, some varieties performed weakly [70][72]. - From the perspective of broker transactions, the number of transactions of bank perpetual and tier - 2 bonds increased significantly month - on - month, but the trading sentiment weakened. The TKN ratio and low - valuation ratio of secondary capital bonds and perpetual bonds decreased, and the trading of urban commercial bank capital bonds also showed a weakening sentiment, with the trading of urban commercial bank perpetual bonds extending the duration [77].