机构行为跟踪周报20250805：交易盘“追涨”情绪减弱-20250805

1. Report Industry Investment Rating There is no information provided in the text regarding the industry investment rating. 2. Core Viewpoints of the Report - Last week, the bond market experienced significant fluctuations, and institutional behavior adjusted accordingly. After a series of market movements, the "chasing up" behavior of trading desks became more cautious, and the allocation desks showed differentiation without forming a joint force [8]. - The bond market vitality index increased. As of August 1st, it rose by 13 pcts to 49% compared to July 25th, and the 5D - MA increased by 1 pct to 45% [1][9]. - In July, the increase in wealth management scale was significantly weaker than the seasonal average. The scale of bond funds also had a notable decline in its month - on - month growth rate, while the month - on - month growth rate of stock funds was larger [4]. 3. Summaries Based on Relevant Catalogs 3.1 Overall Sentiment: Bond Market Vitality Index Increase - The bond market vitality index is compiled based on the historical percentile levels of bond market leverage, turnover rate, bond fund duration, and the implied tax rate of government bonds since 2022 and their correlation with the bond market trend. As of August 1st, it rose by 13 pcts to 49% compared to July 25th, and the 5D - MA increased by 1 pct to 45% [9]. - Indicators of increasing bond market vitality include the trading volume of 10Y government bond active bonds/balance of 9 - 10Y government bonds, inter - bank bond market leverage, median duration of medium - and long - term pure bond funds, and 1 minus the implied tax rate of 10 - year government bonds. Indicators of decreasing bond market vitality include the turnover rate of 30Y government bonds [1][11][12]. 3.2 Institutional Behavior: After Repeated Market Fluctuations, Funds' Bullish Sentiment Became More Cautious 3.2.1 Buying and Selling Strength and Bond Selection - In the cash bond market last week, the order of net buying strength was: overseas institutions and others > other product types > insurance > wealth management > money market funds > funds. The order of net selling strength was: city commercial banks > joint - stock banks > securities firms > rural financial institutions. For ultra - long bonds (bonds with a maturity of over 15 years), the order of net buying strength was: insurance > wealth management > funds > other product types, and the order of net selling strength was: large - scale banks > joint - stock banks > city commercial banks > rural commercial banks > overseas institutions and others [19]. - Currently, the main bond types for various institutions are: large - scale banks focus on 3 - 5Y credit bonds; rural commercial banks focus on 3 - 5Y credit bonds; insurance focuses on 7 - 10Y interest - rate bonds; funds focus on 3 - 5Y interest - rate bonds; wealth management has no obvious main bond type; other product types focus on 7 - 10Y interest - rate bonds [2][24]. 3.2.2 Trading Desks: Interest - Rate Bond Funds Extended Duration, Credit Bond Funds Shortened Duration, and High - Performing Bond Funds Had Smaller Duration Adjustments - As of August 1st, the median duration of the full - sample medium - and long - term pure bond funds increased by 0.03 years to 4.39 years compared to July 25th. Among them, the median durations of pure interest - rate bond funds, interest - rate bond funds, and credit bond funds were 5.67 years, 5.43 years, and 3.95 years respectively, with changes of +0.98 years, +0.86 years, and - 0.47 years. The median durations of high - performing interest - rate bond funds and credit bond funds were 6.79 years and 4.75 years respectively, with changes of - 0.39 years and +0.19 years [2][41]. 3.2.3 Allocation Desks: Wealth Management Continuously Extended Duration, Rural Commercial Banks and Insurance Arranged Ultra - Long Bonds - In the primary market, the subscription demand for treasury bonds and policy - bank bonds increased last week. In the secondary market, large - scale banks' cumulative net purchase of 1 - 3Y treasury bonds this year was higher than the same period last year; rural commercial banks' cumulative net purchase of cash bonds this year was significantly weaker than in previous years, mainly due to the weak net purchase of short - term bonds within 1 year, but their net purchase of 7 - 10Y and over 10Y cash bonds was higher than the same period in previous years; insurance's net purchase of cash bonds and its ratio to premium income were significantly higher than in previous years, mainly because of the sufficient supply of ultra - long - term government bonds; wealth management continued to increase the duration of its net - purchased cash bonds in the secondary market, reaching the highest level since February 23, 2024 [3][55][79]. 3.3 Asset Management Product Tracking: The Increase in Wealth Management Scale in July Was Significantly Weaker than the Seasonal Average - In July, the increase in wealth management scale was weaker than the seasonal average. The actual month - on - month increase was 274.1 billion yuan, while the estimated increase based on the average month - on - month growth rate of the past four months was 1.87 trillion yuan. The month - on - month growth rate of bond fund scale declined significantly in July, while that of stock funds was larger. Last week, the net value of various types of bond funds increased significantly, but they still recorded overall negative returns in the past month [4][90][98].