1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - Year - end allocation of ultra - long bonds is weak. The problem of insufficient ultra - long bond underwriting has intensified this week, driving up the 30Y Treasury bond rate. Although some institutions have increased their allocation, funds still have weak buying power due to redemption pressure [1][10]. - Banks' willingness to allocate ultra - long bonds in the secondary market has decreased due to primary underwriting and IRRBB assessment pressure. Insurance funds continue the trend of stock - bond rebalancing and focus on local bonds and long - term credit bonds [1]. - There are feasible paths to solve the ultra - long bond underwriting problem, such as controlling the duration of new government bonds, central bank's purchase of ultra - long Treasury bonds, guiding non - bank funds to participate in subscriptions, and reducing the pressure on banks' book interest rate risk indicators [2]. - The central bank maintains a supportive attitude. The carry trade strategy is dominant, and investors can moderately participate in band trading after adjustments [2]. 3. Summary by Relevant Catalogs 3.1 Review Summary and Bond Market Outlook - This week, the bond market sentiment was weak, with the 10Y and 30Y Treasury bond rates rising by 1bp and 7bp respectively. The market showed different trends on different days due to factors such as PMI data, stock market performance, and policy expectations [9]. - The allocation of ultra - long bonds at the year - end is weak. Banks' willingness to allocate ultra - long bonds in the secondary market has decreased, and insurance funds focus on local bonds and long - term credit bonds [1][10]. - There are feasible paths to solve the ultra - long bond underwriting problem, and the central bank's supportive attitude remains unchanged. The carry trade strategy is dominant, and investors can moderately participate in band trading [2][24]. 3.2 Bond Market Review 3.2.1 Funding Situation - The central bank conducted a net withdrawal, and funding rates declined. From December 1st to 5th, the central bank's net withdrawal was 8480 billion yuan. R007 and DR007 decreased by 3bp compared to November 28th [28][29]. 3.2.2 Secondary Market Trends - Yields first rose and then fell this week. Except for the 1Y and 3Y Treasury bonds, the rates of other key - term Treasury bonds increased. The 10Y and 30Y Treasury bond yields rose by 1bp and 7bp respectively compared to November 28th [37]. 3.2.3 Bond Market Sentiment - The 30Y - 10Y Treasury bond term spread widened significantly, and the duration of bond funds decreased. The 30Y Treasury bond weekly turnover rate continued to rise to 35%, and the inter - bank leverage ratio rose to 107.3% [43]. 3.2.4 Bond Supply - This week, the net financing of interest - rate bonds decreased compared to last week. The net financing of Treasury bonds increased, while that of local government bonds and policy - bank bonds decreased. The net financing of inter - bank certificates of deposit turned positive, and the average issuance rate increased [57][63]. 3.3 Economic Data - Since December, movie consumption has been significantly stronger than seasonal trends, and the freight rate index has weakened. Real estate, consumption, export, and industrial production show different trends [69]. - Infrastructure and price high - frequency data show that the mill operation rate has rebounded, inventory indicators have continued to decline marginally, and most price indicators have increased [72]. 3.4 Overseas Bond Market - US consumer confidence slightly increased in December, and the expectation of the Fed's interest rate cut has risen. US bonds, Japanese and Korean bond markets declined. The 10Y - 2Y US Treasury bond spread widened, and the Sino - US 10Y Treasury bond spread widened [77][78][81]. 3.5 Major Asset Classes - The Shanghai - Shenzhen 300 index rebounded this week. Shanghai copper rose significantly, and the Nanhua live - hog index weakened. The performance of major asset classes is: Shanghai copper > rebar > Shanghai - Shenzhen 300 > Shanghai gold > CSI 1000 > Chinese - funded US dollar bonds > crude oil > Chinese bonds > convertible bonds > US dollar > live hogs [82]. 3.6 Policy Review - On December 5th, relevant policies such as the adjustment of insurance company risk factors, the management method of financial leasing company business, and articles on capital market development were released. On December 4th, an article on the construction of the monetary policy system was published. On December 1st, the list of infrastructure REITs project industries was released [86][90][91].