量化信用策略：票息策略的线索

Report Summary 1. Investment Rating No investment rating for the industry is provided in the report. 2. Core Viewpoints - This week, the returns of the simulated portfolios generally declined, with the credit - style portfolio returns mostly higher than the interest - rate style. The investment in Pu - xin bonds (普信债) was advantageous, and the capital gains of the urban investment bond heavy - position strategy contributed significantly to the returns [2][3]. - In the past four weeks, the urban investment bond duration strategy balanced returns and defensiveness well. The excess returns of medium - long - term and ultra - long - term strategies were significantly compressed [4]. 3. Summary by Directory 3.1 Combination Strategy Return Tracking - Combination Weekly Return Overview: As of October 24, the cumulative returns of the interest - rate style and credit - style portfolios this year have been continuously lagging behind the same period in the past two years. Among the main credit - style portfolios, the urban investment short - end sinking, urban investment bullet - type, and certificate of deposit bullet - type portfolios had leading cumulative comprehensive returns of 1.26%, 0.86%, and 0.84% respectively. This week, the returns of the simulated portfolios generally declined, with the credit - style portfolio returns mostly higher than the interest - rate style. In the interest - rate style portfolio, the urban investment ultra - long - type and industrial ultra - long - type strategies had smaller drawdowns, with weekly returns of - 0.03% and - 0.04% respectively. In the credit - style portfolio, the urban investment ultra - long - type and industrial ultra - long - type strategies led in returns, reaching 0.41% and 0.4% respectively. The Pu - xin bond heavy - position strategy was advantageous [10][14][15]. - Combination Weekly Return Source: The coupon of various strategy portfolios continued to decline, while the capital gains of the urban investment bond heavy - position strategy contributed significantly. Among the mainstream credit - style strategies, the weekly coupon decline of the second - tier bond bullet - type and duration portfolios exceeded 0.13bp, while the annualized coupons of the urban investment bond duration and dumbbell - type strategies remained above 2.19%, exceeding the readings of portfolios such as perpetual bond duration and securities firm bond sinking. This week, the divergence in return sources was relatively large, and the coupon contribution of the credit - style portfolio generally fell within the range of 10% - 70%, with the readings of the urban investment bond heavy - position strategy mostly below 40%, indicating rich capital gains [3][25]. 3.2 Credit Strategy Excess Return Tracking - In the past four weeks, the urban investment bond duration strategy balanced returns and defensiveness well. Except for the commercial financial bond bullet - type portfolio, the other medium - long - term strategies had certain excess returns in the past month. The cumulative excess returns of the perpetual bond duration, second - tier bond duration, and urban investment dumbbell - type portfolios reached 18.5bp, 14.7bp, and 5.1bp respectively. However, the possibility of volatility and correction was greater than that of other strategies. Among the low - volatility portfolios, the urban investment bond duration strategy with leading returns was worth attention [4][29]. - In terms of strategy duration, the excess returns of medium - long - term and ultra - long - term strategies were significantly compressed. In the short - term, the certificate of deposit strategy showed a negative deviation from the benchmark for four consecutive weeks, while the excess return of the urban investment sinking strategy gradually expanded. Except for the securities firm bond sinking, urban investment duration, and dumbbell - type portfolios, the excess returns of the other medium - long - term strategies were negative. The ultra - long - term strategy performance was divergent, with the urban investment and industrial ultra - long - type strategies having small excess returns, while the reading of the second - tier ultra - long - type strategy dropped to - 25.6bp, showing a significant decline compared to the previous period [4][31].