Group 1: Market Overview - The bond market has shown some recovery this year, with the 10Y government bond yield decreasing from 1.8427% to 1.8143% (-2.84bp) and the 10Y government-backed bond yield falling from 1.9862% to 1.9646% (-2.16bp) [7] - The 10Y government-backed bond and government bond spread widened from 14.35bp to 15.03bp (+0.68bp), remaining at a historical high [7] - Institutional behavior indicates that the compression of the government-backed bond spread is constrained by large banks selling pressure, unstable support from smaller banks, and strong trading activity from funds [7] Group 2: Institutional Behavior - Large banks have net bought approximately 246.5 billion yuan in government bonds and net sold about 139.2 billion yuan in government-backed bonds, creating a cumulative preference gap of -385.8 billion yuan [10] - Smaller banks have net sold about 162.6 billion yuan in government bonds while net buying approximately 34.3 billion yuan in government-backed bonds, indicating a temporary support for the government-backed bond market [10] - Funds have shown a slight net sell of about 34 million yuan in 7-10Y government-backed bonds and a significant net sell of approximately 481 million yuan in 7-10Y government bonds, failing to create sustained allocation to long-term interest rate bonds [14] Group 3: Future Outlook - The ability of the 10Y government-backed bond spread to compress will depend on the supply strength and continuity of support from the government-backed bond market [18] - Historical spread percentiles have decreased significantly, indicating that the spread may enter a "repairable" range, but the 10Y spread remains sensitive to marginal forces [18] - If large banks' selling pressure on government-backed bonds decreases and smaller banks provide more consistent support, the 10Y government-backed bond spread may shift from "dull and repetitive" to a trend of compression [18]

Group 1 - The report indicates that the 10Y National Development Bank (NDB) yield spread is currently under pressure due to large banks selling, unstable support from smaller banks, and strong trading behavior from funds [1][7][10] - Since the beginning of the year (January 4 to March 13), the bond market has shown some recovery, with the 10Y government bond yield decreasing from 1.8427% to 1.8143% (-2.84bp) and the 10Y NDB yield falling from 1.9862% to 1.9646% (-2.16bp), yet the yield spread has widened from 14.35bp to 15.03bp (+0.68bp) [7][10] - The behavior of large banks has been characterized by a preference for buying government bonds while selling policy financial bonds, resulting in a net purchase of approximately 246.5 billion yuan in government bonds and a net sale of about 139.2 billion yuan in policy financial bonds [10][14] Group 2 - The report highlights that the funds have shown a slight net sell of about 34 million yuan in 7-10Y policy financial bonds and a significant net sell of approximately 481 million yuan in 7-10Y government bonds, indicating a lack of sustained allocation to long-term interest rate bonds [14][15] - The report notes that the incremental funds have been concentrated in credit bonds, with net purchases of about 213.2 billion yuan in 3-5Y "other" bonds and approximately 148.5 billion yuan in 1-3Y medium-term notes, reflecting a defensive strategy overall [14][15] - The historical spread data shows that the yield spread has significantly retreated from its peak, indicating that the overall spread may be entering a "repairable" range, although the 10Y spread remains relatively high and sensitive to marginal forces [18][21] Group 3 - In the primary market, the report mentions that the marginal multiples for policy financial bonds have decreased, with the overall multiples and the spread between primary and secondary markets showing differentiation [30][31] - The report indicates that in the secondary market, large banks and smaller banks have shifted to increasing their allocations, while funds and securities companies have predominantly reduced their allocations [41][42] - The report also notes that the trading activity in the current bond market has increased, with significant buying from smaller banks in the long-end and super long-end bonds, while large banks and securities companies have been major sellers [41][42]