信用策略周报20250720：成分券“超涨”了多少bp？-20250721

Group 1 - The report highlights that the bond market is currently experiencing fluctuations, with interest rates on government bonds mostly declining, particularly in the short end, while the long end, especially the 30-year government bonds, is under adjustment pressure [1][9] - The launch of the Sci-Tech Innovation Bond ETF has led to a significant increase in trading demand for credit bonds, particularly for the related component bonds, resulting in a decrease in credit bond yields and credit spreads [1][9] - The report notes that the average valuation yield of high-grade short-end component bonds is lower than that of 1-year AAA time deposits by 3-5 basis points, indicating limited trading space and potential risks of negative carry [4][35] Group 2 - The report indicates that the secondary capital bonds with a 5-year yield of 1.9% have regained value for funds, with funds being the main buyers of these bonds, particularly in the long end [2][11] - The component bonds have shown significant trading activity, with some experiencing an "over-increase" of more than 20 basis points, while perpetual bonds, especially those with subordinate attributes, have seen limited increases, mostly within 5 basis points [3][33] - The report suggests that in the context of crowded trading in component bonds, there may be opportunities to select non-component bonds from the same issuers, which could have price differences of up to 20 basis points compared to component bonds [4][35] Group 3 - The report emphasizes that the recent surge in the scale of the Sci-Tech Innovation Bond ETF, which increased by nearly 600 billion yuan in the week following its launch, has catalyzed a rush for component bonds [3][18] - The trading volume of component bonds has been notably higher than that of benchmark market-making component bonds and non-component bonds, indicating a strong market interest [22][29] - The report also highlights that the average valuation and credit spreads of component bonds are generally lower than those of non-component bonds, with significant differences observed in the long end compared to the short end [29][33] Group 4 - The report suggests that for other credit varieties, assets with a maturity of around 2 years may still be selected, as the funding environment remains favorable for the bond market [5][44] - It notes that the yield of short-term perpetual bonds has declined, and the yield curve has steepened, opening up space for riding strategies [5][44]