Report Industry Investment Rating No information provided in the content. Core Viewpoints - The secondary - market trends of industrial bond sub - industries show a divergence in the correlation between primary and secondary markets. This divergence may be due to differences in supply among industries and differences in bond liquidity and trading popularity within each industry. If an industry has many issuing entities with strong willingness and ability to issue bonds and is in a good development trend, the probability of a synchronous resonance relationship between primary - market supply and secondary - market demand is relatively high, which can improve the accuracy of judging trading signals of narrowing spreads from daily net financing [1][14]. - Most industries have trading signals transmitted from primary - market supply to secondary - market demand, including comprehensive, non - ferrous metals, and others. Some industries show a stronger negative correlation between primary - market supply and secondary - market demand, such as comprehensive and non - ferrous metals. Some industries have a weak correlation between daily net financing and daily spreads, including communication and food and beverage [2][4]. Summary by Directory 1. Industrial Bond Sub - industries Show Divergence in Primary - Secondary Market Trend Correlation - **Research Method**: Classify industrial bond issuers by Shenwan primary industries, calculate the daily net financing and daily credit spreads of each sub - industry from January 1, 2025, to December 19, 2025, to observe the correlation between primary - market supply and secondary - market demand [12]. - **Divergence Performance**: Most industries have trading signals transmitted from primary - market supply to secondary - market demand, while some do not show this feature significantly [13]. - **Reasons for Divergence**: Differences in supply among industries are related to the number, size, and life - cycle stage of issuing entities. Differences in bond liquidity and trading popularity within industries are related to the scale of outstanding bonds, valuation levels, and event catalysts [14]. 1.1. Industries with Obvious Correlation - **Comprehensive Industry**: From January to March 2025, daily net financing decreased and daily spreads increased; from March to June, daily net financing increased and daily spreads decreased; from June to December, both were in a low - level oscillation [21]. - **Non - ferrous Metals Industry**: From January to July 2025, daily net financing increased and daily spreads decreased; from July to September, daily net financing decreased and daily spreads increased; from October to December, both were in a low - level oscillation [25]. - **Other Industries**: Similar analysis is conducted for industries such as pharmaceutical biology, social services, and others, with different trends in different time intervals [27][30][32]. - **Common Features**: These industries generally have a large scale of outstanding bonds and high institutional investor attention, which is conducive to the transmission of primary - market supply changes to secondary - market spread changes [3][87]. 1.2. Industries with General Correlation - **Industries Included**: Communication, food and beverage, and other industries have a weak correlation between daily net financing and daily spreads, and the linkage and transmission between primary - and secondary - market indicators are relatively weak [4][13]. - **Reasons**: These industries have low participation in the bond market, and their secondary - market trading demand is more affected by overall bond - market trends, industry risk premiums, and liquidity premiums. Different types of industries have specific reasons for the weak correlation [4][90][91].