信用利差周度跟踪20260327：债市延续震荡修复，中长久期信用表现强势-20260328

1. Report's Industry Investment Rating No information provided in the content. 2. Core Viewpoints of the Report - The bond market continued its volatile recovery, with medium - to long - term credit bonds performing strongly, and credit spreads showed different trends across various bond types [2][3] - Credit bond yields declined following interest rates, and medium - and long - term credit spreads compressed [3][10] - Most urban investment bond spreads decreased by 1 - 2BP, while spreads of private and mixed - ownership real - estate industrial bonds continued to widen [4][15] - Most yields of secondary and perpetual bonds declined, and medium - to long - term varieties performed strongly [4][33] - The excess spreads of industrial perpetual bonds increased slightly, while those of urban investment perpetual bonds remained generally stable [5][35] 3. Summary by Relevant Catalog 3.1 Credit Bond Yields Follow Interest Rates Down, and Medium - and Long - Term Credit Spreads Compress - From March 23 to March 27, bond interest rates declined slightly overall. The yields of 1Y, 3Y, 5Y, and 10Y China Development Bank bonds decreased by 1BP, while the 7Y yield increased by 1BP [10] - Credit bond yields generally declined following interest rates. Bonds with a term of over 3Y performed strongly. For 1Y bonds, yields of AA and above grades decreased by 0 - 1BP, while the AA - grade yield increased by 3BP. Similar trends were observed for other terms [10] - Medium - and long - term credit spreads compressed, with different trends for different grades and terms. Rating spreads and term spreads also showed various changes [10] 3.2 Most Urban Investment Bond Spreads Decrease by 1 - 2BP - For external ratings, spreads of AAA and AA + grade urban investment platforms were mostly flat or decreased by 1 - 2BP compared to last week. Some regions had specific changes, such as a 3BP decrease in Liaoning and Inner Mongolia for AAA platforms [15] - AA - grade platform spreads mostly decreased by 1 - 3BP, with specific regional differences [15] - By administrative level, spreads of provincial, prefecture - level, and district - level platforms generally decreased by 1 - 2BP, with some regions showing larger changes [19] 3.3 Most Industrial Bond Spreads Decrease, while Spreads of Private and Mixed - Ownership Real - Estate Bonds Continue to Widen - Central and state - owned enterprise real - estate bond spreads decreased by 1 - 3BP, private real - estate bond spreads increased by 3BP, and mixed - ownership real - estate bond spreads increased by 51BP [25] - Spreads of coal bonds of AAA, AA +, and AA grades decreased by 2BP, 1BP, and 5BP respectively. Spreads of AAA - grade steel bonds decreased by 1BP, and AA + remained flat. Spreads of AAA and AA + grade chemical bonds both decreased by 1BP [25] 3.4 Most Yields of Secondary and Perpetual Bonds Decline, and Medium - to Long - Term Varieties Perform Strongly - For 1Y secondary and perpetual bonds, yields decreased by 0 - 1BP, and spreads were mostly flat or increased by 1BP. For other terms, yields and spreads showed different trends, with medium - to long - term yields generally decreasing and spreads compressing [33] 3.5 Excess Spreads of Industrial Perpetual Bonds Increase Slightly, while Those of Urban Investment Perpetual Bonds Remain Generally Stable - The excess spread of industrial AAA - grade 3Y perpetual bonds increased by 0.52BP to 9.48BP, reaching the 15.55% quantile since 2015. The excess spread of industrial 5Y perpetual bonds increased by 0.01BP to 13.21BP, reaching the 36.24% quantile [35] - The excess spread of urban investment AAA - grade 3Y perpetual bonds decreased by 0.05BP to 7.01BP, reaching the 15.77% quantile. The excess spread of urban investment 5Y perpetual bonds increased by 0.29BP to 10.93BP, reaching the 21.64% quantile [35] 3.6 Credit Spread Database Compilation Instructions - Market - wide credit spreads, commercial bank secondary and perpetual spreads, and urban investment/industrial perpetual bond credit spreads are calculated based on ChinaBond medium - and short - term note and ChinaBond perpetual bond data, with historical quantiles starting from the beginning of 2015 [37] - Urban investment and industrial bond - related credit spreads are compiled and statistically analyzed by the Huafu Securities Research Institute, with historical quantiles starting from the beginning of 2015 [37] - The calculation methods for individual bond credit spreads, bank secondary capital bond/perpetual bond excess spreads, and industrial/urban investment perpetual bond excess spreads are provided, along with sample screening criteria [39]