信用策略随笔：现券交易中，“其他”债券怎么对应？

Group 1 - The report focuses on how to accurately and finely track the institutional trading behavior of perpetual bonds from the limited available data dimensions [1][10] - "Other" bonds mainly refer to commercial bank ordinary bonds, secondary capital bonds, and PPN, excluding other separately listed interbank bond types [1][10] - The trading data and transaction data roughly correspond to three categories: commercial bank bonds, perpetual bonds, and PPN [1][10] Group 2 - For bonds with a maturity of less than 5 years, over 85% are commercial bank bonds and PPN, with commercial bank bonds accounting for about 50% and PPN for about 35% [2][12] - The remaining portion includes a small amount of TLAC bonds and perpetual bonds [2][12] - For bonds with a maturity of more than 5 years, approximately 90% to 95% are secondary capital bonds and perpetual bonds, with a small amount of TLAC bonds and PPN [3][23] Group 3 - Bank perpetual bonds are primarily classified as "other" bonds with a maturity of over 30 years, showing a high correlation in scale and trend with the trading volume of bank perpetual bonds [4][26] - Secondary capital bonds are the main component of "other" bonds with maturities between 5 to 15 years, with a significant correlation observed in the 7-10 year and 10-15 year maturity segments [5][31] - The issuance period of secondary capital bonds is generally structured as 5+5 years or 10+5 years, leading to a fixed difference of 5 years between the exercise period and maturity period [5][40]