【固收】信用债发行环比减少，各行业信用利差涨跌互现——信用债周度观察（20250714-20250718）（张旭/秦方好）

Group 1: Primary Market - In the week from July 14 to July 18, 2025, a total of 386 credit bonds were issued, with a total issuance scale of 401.095 billion yuan, a decrease of 14.72% week-on-week [2] - Among the issued bonds, industrial bonds accounted for 173 issues with a scale of 175.91 billion yuan, down 2.02%, representing 43.86% of the total issuance [2] - City investment bonds had 178 issues with a scale of 106.535 billion yuan, an increase of 16.25%, making up 26.56% of the total [2] - Financial bonds totaled 35 issues with a scale of 118.65 billion yuan, down 40.42%, accounting for 29.58% of the total [2] - The average issuance term for credit bonds was 3.17 years, with industrial bonds averaging 2.39 years, city investment bonds 4.07 years, and financial bonds 2.21 years [2] - The overall average coupon rate for credit bonds was 2.07%, with industrial bonds at 1.93%, city investment bonds at 2.25%, and financial bonds at 1.83% [2] Group 2: Secondary Market - Credit spreads varied by industry, with the largest increase in AAA-rated spreads in the pharmaceutical and biological sector, up 6.1 basis points, while the largest decrease was in the electronics sector, down 2.8 basis points [4] - For AA+ rated spreads, the steel industry saw the largest increase of 8 basis points, while the pharmaceutical and biological sector had the largest decrease of 5 basis points [5] - In the city investment bond sector, the largest increase in AAA-rated spreads was in Jilin, up 1.8 basis points, while Shanxi saw the largest decrease, down 3.4 basis points [5] - The trading volume for credit bonds ranked as follows: commercial bank bonds at 433.848 billion yuan (up 2.87%), company bonds at 356.402 billion yuan (down 1.49%), and medium-term notes at 324.001 billion yuan (down 5.68%) [5]