Group 1: Report Industry Investment Rating - Not provided in the given content Group 2: Core Viewpoints of the Report - The ultra - long credit bond market continues. Some investors prefer to extend the duration to earn excess returns as the yield of medium - and short - duration credit bonds is close to the annual low, and there is a constraint on the subsequent downward range [2][13] - The subscription sentiment for new ultra - long credit bonds has recovered, but the average issuance interest rate has fluctuated greatly. The coupon increase has promoted the recovery of the subscription sentiment, which has returned to around the 50% percentile since 2024 [3][22] - The performance of ultra - long credit bonds is stable, but the trading sentiment has cooled down in June. The trading rhythm of industrial bonds over 7 years has slowed down, and the pricing of 5 - 7 - year long bonds has become extreme. The ultra - long - duration strategy is still recommended to be cautious [4][5] Group 3: Summary by Directory 1. Stock Market Characteristics - The ultra - long credit bond market persists. The number of outstanding ultra - long credit bonds with a yield below 2.2% has increased to 336 compared with last week [2][13] 2. Primary Issuance Situation - Two special bonds for stable growth and expanded investment were issued in large quantities this week, with a total issuance scale of 39.5 billion, driving a significant increase in the supply of new ultra - long credit bonds. The average issuance interest rate has fluctuated greatly, and the coupon rate of new ultra - long industrial bonds has risen to 2.42%. The subscription sentiment for new ultra - long credit bonds has recovered to around the 50% percentile since 2024 [3][22] 3. Secondary Trading Performance - The performance of ultra - long credit bonds is stable. The index of AA + credit bonds over 10 years has increased by 0.36%. The trading rhythm of industrial bonds over 7 years has slowed down, with 140 fewer trading volumes compared with the previous week. Although the trading sentiment has cooled down in June, the TKN trading proportion of credit bonds over 7 years still shows a relatively high buying interest, and the deviation between trading yield and valuation has not fluctuated significantly. Public funds and wealth management have significantly reduced their increase in the scale of general credit bonds with a duration of 5 - 10 years. Insurance has become the main buyer of 15 - 30 - year bonds again, but its stability in buying long - term bonds this year is not as good as last year [4][31][42]