行动方案开展5个月以来，哪些基金的基准发生了变化

Core Viewpoint - The public fund industry is undergoing a deep adjustment centered on benchmark reconstruction, driven by the "Action Plan for Promoting High-Quality Development of Public Funds" implemented since May 7, 2025. This adjustment reflects a shift from scale expansion to quality improvement, emphasizing the importance of benchmarks in defining product positioning and investment strategies [2][3]. Group 1: Benchmark Adjustment Overview - Since the implementation of the "Action Plan," 57 funds have initiated benchmark adjustments, with bond and mixed funds being the primary focus, each accounting for 18 funds, representing over 63% of the total adjustments. Stock funds follow with 14 adjustments, while FOF products have 5, indicating a concentrated effort in high market share and complex strategy fund types [6][8]. - The adjustments are characterized by a shift from broad indices to more targeted indices, such as moving from the "CSI All Bond Index" to the "China Bond Composite Index," which allows for a more accurate reflection of the fund's investment characteristics and risk-return profile [9][10]. Group 2: Specific Fund Adjustments - Notable examples of benchmark changes include the "浦银安盛稳健增利债券" fund, which changed its benchmark from "CSI All Bond Index 100%" to a combination of "China Bond Composite (Full Price) Index Yield 85% + CSI Convertible Bond Index Yield 5% + Bank Demand Deposit Rate (after tax) 10%" [9]. - The adjustments also reflect a trend of incorporating various yield factors, such as including bank deposit rates in benchmarks, which enhances the relevance of the benchmarks to the funds' investment strategies and risk profiles [10][20]. Group 3: Mixed and Stock Fund Adjustments - Mixed and stock funds are also adjusting their benchmarks to better align with their investment strategies, moving from broad indices like the "CSI 300" to more specific indices that reflect their investment focus, such as the "CSI Sports Industry Index" and "CSI TMT Industry Theme Index" [14][16]. - The adjustments aim to resolve the mismatch between benchmarks and strategies, ensuring that the benchmarks accurately reflect the funds' investment characteristics and risk-return profiles [15][17]. Group 4: Risk and Liquidity Management - Funds are adjusting their fixed income or cash components in benchmarks to balance risk and liquidity needs. High equity proportion funds are replacing bond indices with bank demand deposit rates to meet liquidity management requirements, while low equity proportion funds are adjusting bond index weights to align with their risk profiles [20][21].