1. Report Industry Investment Rating - The industry rating is "Overweight", indicating an expected increase of over 10% in the industry index relative to the benchmark index over the next 6 - 12 months [25] 2. Core View of the Report - The bond market is currently in a technical buying window. Based on refined observation, trading opportunities can be grasped through the repair of term spreads and short - covering in bond - type portfolio strategies. When the trading price approaches the key point, further breakthrough requires an increase in trading volume, and attention should also be paid to changes in equity sentiment and institutional liability ends [1][21] 3. Summary by Relevant Catalogs 3.1 Bond Market May Be in a Technical Buying Window - This week, the bond market showed a recovery. As of January 23, the yields of 10Y and 30Y treasury bonds decreased by 1.26BP and 1.65BP respectively compared to last Friday. The 30Y treasury bond yield showed a greater decline on Wednesday and Friday, which was a supplementary repair lagging behind the 10Y treasury bond yield [1][5] - There may be technical trading opportunities: 1) "Short - sellers are exhausted", and there is a valuation repair due to short - covering of ultra - long treasury bonds. For example, on Tuesday (1/20), the borrowing concentration of 25 Te Guo 06 reached a record high of 31.92%, and after 25 Te Guo 02's borrowing concentration rose to a recent high, it declined on Wednesday, with securities firms leading the short - covering, driving the valuation of two 30 - year treasury bond active bonds to repair by over 2BP [7] - The "short local bonds" strategy based on supply concerns has increased recently. For example, the borrowing volume of 30 - year local bonds such as 25 Henan Bond 111 has significantly increased, and securities firms have contributed the main increase [9] - In terms of institutional behavior, large banks had a net purchase guidance for long - term bonds last week. From January 12 - 16, large banks had a cumulative net purchase of about 65 billion yuan of 7 - 10Y interest - rate bonds, and continued to increase their holdings this week, with a total net purchase of over 120 billion yuan in two weeks [11] - The duration of pure - bond funds has dropped to a low level, and there is a repair of the duration strategy space this week. On January 15, the duration of pure - bond funds dropped to the 12% historical quantile level since last year and showed a rebound near the 75% quantile (2.76 years) in the past five years [11] - The recent change in bond market trading strategies is that the bond - type portfolio strategy of "short local bonds + long treasury bonds" has replaced the term spread strategy of "short 30 - year + long 10 - year". The 30 - year treasury bond short - selling strategy is already crowded, and there is not a strong logic for further short - selling in the short term [14] 3.2 Possible "Flaws" in Local Bond Borrowing - It is uncertain whether shorting local bonds can become a common strategy in the bond market. Currently, the participation ranking is securities firms > small and medium - sized banks > large banks. Due to the lower liquidity, smaller single - bond scale, and more frequent bond - swapping operations of local bonds compared to treasury bonds, the trading is more difficult [15] - Some one - sided short positions in local bonds may lead to losses when the entire bond market rises. For example, during this week's bond market recovery, the yield of Shandong bonds decreased, although the decline of 26 Shandong 02 (5BP) was less than that of 2602 (9BP) [15] - The short - term ultra - long bond underwriting capacity is acceptable, and the supply concern at the beginning of the year may be overestimated. The issuance of ultra - long local bonds this week was stable, and the underwriting capacity mainly comes from banks with sufficient underwriting quotas at the beginning of the year and insurance companies as the current interest rate of local bonds (2.4% - 2.5%) has reached their acceptable allocation point [17] 3.3 China's Bond Market Supply - Demand Issue May Not Be Isolated - The current price repair may not mean an increase in trading volume. The bond market supply - demand contradiction remains unresolved in the medium term. In the short term, it is difficult to see a reduction in the supply of ultra - long bonds or an adjustment in the term structure. The supply of ultra - long bonds in Q1 is expected to be about 2.4 trillion yuan, not significantly less than last year [18] - If the primary issuance remains unchanged, banks may face greater pressure in underwriting. Insurance companies may find it more cost - effective to purchase ultra - long bonds from the secondary market. The incremental funds from insurance companies for ultra - long bond allocation may be insufficient [19] - The supply - demand issue has been discussed for a long time, and the bond market has taken a long time to digest it. The yield of Japanese and US bonds has also significantly adjusted this week, indicating that the supply - demand contradiction may not be a problem unique to China [21] 3.4 Specific Strategies - In the short term, attention can be paid to the change in the borrowing concentration of active bonds. The risk of one - sided shorting of local bonds is relatively high. A strategy combination can be made by combining the short - covering repair of 30 - year treasury bonds, and opportunities for the repair of term spreads that have moved quickly in the early stage can be grasped. Small - position trading can be used to maintain a competitive state. This week, funds significantly increased their holdings of Tier 2 and perpetual bonds, and short - term Tier 2 and perpetual bonds may benefit from the establishment of various fixed - income + strategies [22] - For the TL contract, the price has support at 111.5 - 112.0 yuan and a first - level pressure zone at around 112.8 yuan. If the bullish sentiment breaks through the resistance level, the next repair target may be 113.55 yuan. According to the modified duration of 25 Te Guo 06, the lower limit of the corresponding valuation yield of the 30 - year treasury bond active bond may be 2.20%. If the term spread narrows to 40BP, the lower limit of the 10 - year treasury bond yield may be around 1.80% [2][22]