1. Report Industry Investment Rating No relevant content provided. 2. Core View of the Report The ultra - long credit bond market is experiencing an over - heated sentiment. The ultra - long credit bond market has shown strong performance in both the primary and secondary markets, but there are still vulnerabilities in the market due to the extreme behavior of trading - oriented investors [2][3][4][5]. 3. Summary by Directory 3.1 Ultra - long Credit Sentiment Over - heated 3.1.1 Stock Market Characteristics The ultra - long credit bond market is in an extremely strong situation. The central bank's support for the capital market boosts the bullish sentiment in the bond market. As the yield of coupon assets further declines, the ultra - long credit bonds have strengthened. The number of outstanding ultra - long credit bonds with a yield below 2.2% has increased to 656 compared to last week [2][13]. 3.1.2 Primary Issuance Situation The subscription sentiment for new ultra - long industrial bonds continues to heat up. This week, the issuance scale of new ultra - long credit bonds totaled 31.61 billion, a 153% increase in supply compared to last week. Affected by the re - issued bond "24 Zhonghua 06 (Re - issued)", the average issuance rate of new ultra - long industrial bonds has significantly increased compared to last week. Coupled with the hot market for ultra - long bonds in the cash market, the subscription sentiment for new ultra - long credit bonds continues to rise [3][21]. 3.1.3 Secondary Trading Performance - **Index Performance**: The ultra - long credit bond index leads the market. In the latest week, the ultra - long credit bond index had a leading increase. The weekly increase of the AA+ credit bond index over 10 years was around 0.9%, while the increase of the same - maturity treasury bond index was 0.77% [4][28]. - **Trading Volume**: The trading volume of ultra - long industrial bonds has exceeded the previous high. This week, the market's enthusiasm for speculating on ultra - long credit bonds has further increased. The weekly trading volume of industrial bonds with a maturity of 7 - 10 years reached 644, far exceeding the weekly average during the previous round of the market in January this year. The total trading volume of credit bonds over 10 years also reached 167, indicating a hot trading sentiment [4][31]. - **Trading Yield**: The weekly average trading yield of the most active 7 - 10 - year industrial bonds has dropped to 2.14%, and the spread with 20 - 30 - year treasury bonds has narrowed to 27BP [4]. - **Investor Behavior**: The intensity of low - valuation bond - grabbing for ultra - long credit bonds has significantly increased, and the trading preference for 10 - 20 - year urban investment bonds has also recovered. The proportion of TKN transactions for credit bonds over 7 years has risen to over 80%, reaching around the 90% historical high since 2024 [4][35]. - **Investor Structure**: This week, insurance companies and funds remain the main investors in ultra - long credit bonds. Among them, funds have had a net purchase of ultra - long credit bonds exceeding that of insurance companies in the past two weeks. This week, the scale of funds' increase in 5 - 10 - year credit bonds was more than 7 billion, setting a new high since the first half of the year [41].

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]