供需结构、定价权迁移与曲线重定价：30Y国债的前世今生

Group 1 - The core viewpoint of the report indicates that the pricing power of the 30Y government bond has undergone three migrations, driven by the "asset shortage" and improvement in liquidity [1][5][6] - Before 2022, the 30Y government bond received little attention, with its supply significantly lower than that of the 10Y bond, leading to weak liquidity and primarily being purchased by insurance companies [6][12][14] - From 2022 to 2024, the pricing power of the 30Y government bond has shifted towards the trading market, becoming a "barometer" for the bond market, with increased liquidity and active trading [1][14][18] Group 2 - Currently, the 30Y government bond faces challenges related to the alleviation of the "asset shortage" and mismatched supply-demand structure, leading to a re-pricing phase [41][51] - The alleviation of the "asset shortage" is reflected in the improvement of risk appetite and return structures in the equity market, with the Shanghai Composite Index showing a steady rise and reduced volatility since early 2025 [42][46] - The supply-demand contradiction arises from the mismatch between the long-term supply of government bonds and the short-term liquidity provided, resulting in a structural issue where the supply of 30Y bonds exceeds demand [51][60] Group 3 - The report suggests that the pricing power of the 30Y government bond may be returning to the configuration plate, as the trading market's marginal pricing ability has declined due to significant market volatility [66][71] - The transition of pricing power has been characterized by three phases: before 2022, where pricing was dominated by the configuration plate; from 2022 to 2024, where trading power increased; and from 2025 onwards, where there is a potential return to the configuration plate [66][70] - To alleviate the upward pressure on the yield of the 30Y government bond, two main paths are suggested: a price path where the long end adjusts to a perceived "valuable" range, and a liquidity path where market liquidity becomes significantly more accommodative [72][73]