公募股基持仓&债基久期跟踪测算周报：股票加仓石油石化，债基久期小幅上升-20250615

Report Summary 1. Report Industry Investment Rating - Not provided in the content. 2. Core Viewpoints - During the week of 2025/06/09 - 2025/06/13, the CSI 300 index declined by 0.25%. The overall estimated stock position of active stock and partial - stock hybrid funds increased by 0.16% to 84.90%. For bond funds, the median estimated duration of medium - and long - term pure bond funds, short - term pure bond funds, credit bond funds, and interest - rate bond funds all increased [4][7]. 3. Summary by Relevant Catalogs 3.1 Fund Stock Position Calculation - The overall estimated stock position of active stock and partial - stock hybrid funds showed an upward trend this week, reaching 84.90%, but was 3.32% lower than the quarterly report. Active stock funds' position decreased by 0.02% to 88.16%, while partial - stock hybrid funds' position increased by 0.21% to 84.14% [7]. - The overall increase or decrease in the estimated positions of active stock and partial - stock hybrid funds was mostly concentrated in the range of [0%, 1%) with 568 funds, followed by [-1%, 0%) with 215 funds. Funds with a scale of less than 20 billion and 50 - 80 billion slightly increased their positions, while other scale funds slightly reduced their positions [11]. - In terms of investment style, growth stocks accounted for a higher proportion in fund holdings. This week, value stocks had a slight increase in position, and growth stocks had a slight decrease. The proportion of small - cap stocks in fund holdings was relatively high. This week, large - cap stocks had a slight decrease, while mid - cap and small - cap stocks had a slight increase [15]. - The top 5 industries held by active stock and partial - stock hybrid funds this week were electronics (13.97%), power equipment (9.12%), pharmaceutical biology (6.89%), automobiles (6.52%), and machinery and equipment (5.75%). The top 3 industries for position increase were petroleum and petrochemicals (+0.28%), non - ferrous metals (+0.22%), and light manufacturing (+0.10%); the top 3 industries for position reduction were electronics (-0.21%), food and beverages (-0.15%), and machinery and equipment (-0.09%) [4][18]. 3.2 Bond Fund Duration Calculation - The yield to maturity of the 10 - year China Development Bank bond increased by 1bps this week. The median estimated duration of medium - and long - term pure bond funds increased by 0.37 to 3.35 years, reaching the 100.00% percentile in the past 5 years. The median estimated duration of short - term pure bond funds increased by 0.06 to 0.95 years [4][21]. - The median estimated duration of credit bond funds increased by 0.20 to 2.81 years, with 8% of funds being actively operated and 24% being conservatively operated. The median estimated duration of interest - rate bond funds increased by 0.61 to 5.12 years, with 55% of funds being actively operated and 5% being conservatively operated [4]. - The estimated duration of credit bond funds this week was concentrated in the range of [2.5, 3) with 156 funds, followed by [2, 2.5) with 147 funds. The estimated duration of interest - rate bond funds was concentrated in the range of [5,) with 192 funds, followed by [4.5, 5) with 48 funds [28]. - Among credit bond funds, 7.65% of funds had an actively operated duration, and 24.33% had a conservatively operated duration. Among interest - rate bond funds, 54.99% of funds had an actively operated duration, and 5.41% had a conservatively operated duration [29]. - The yield to maturity of the 1 - year China Development Bank bond decreased by 0bps this week. The median estimated duration of short - term pure bond funds increased by 0.06 to 0.95 years, reaching the 89.20% percentile in the past 5 years. The estimated duration of passive policy - bank bond funds increased by 0.48 to 3.75 years [32].