1）参考量化指数增强的优化框架，在选股的同时针对基准指数控制成分股的投资比例、行业权重偏离、个股权重偏 离； 2）分仓位投资，一部分仓位用于基准指数的投资或尽可能跟住指数，另一部分仓位仍按照原来的主动管理思路。 下面部分中，我们将首先讨论这两种方案的效果，另外最后部分中我们也将参考海外绩优产品的实际偏离情况给予启 发。 1. 《行动方案》强化业绩比较基准的约束作用 5月7日，中国证监会发布《推动公募基金高质量发展行动方案》（以下简称"《行动方案》"），提出了推进公募行业 高质量发展的七大项25项具体举措，其中明确提出强化业绩比较基准的约束作用，基金公司评价体系、公司高管的考 核以及基金经理的考核都将与业绩比较基准密切相关。以基金经理为例："对三年以上产品业绩低于业绩比较基准超过 10个百分点的基金经理，要求其绩效薪酬应当明显下降；对三年以上产品业绩显著超过业绩比较基准的基金经理，可 以合理适度提高其绩效薪酬"。 在此前后明星时代公募基金研究的系列报告中我们也曾经测算，过去10年美国主动权益基金相对其业绩比较基准的年 化跟踪误差多数在3~6%之间，平均水平不足5%，而国内偏股基金过去5年平均跟踪误差接近15%， ...

Core Viewpoint - The rapid growth of index-enhanced funds in the market is driven by the evolution of market conditions and the increasing demand from investors for more sophisticated investment tools, with a total scale exceeding 200 billion yuan by the end of Q1 2025, representing an increase of over 80% since the end of 2020 [1]. Group 1: Definition and Characteristics of Quantitative Index Enhancement - Quantitative index enhancement involves tracking benchmark indices while using quantitative models to optimize stock selection and portfolio management to pursue excess returns (Alpha) [1]. - Unlike traditional index funds that passively replicate constituent stocks, index-enhanced products allow fund managers to adjust holdings within certain constraints to achieve returns that exceed the index [1]. - The average return of index-enhanced funds based on the CSI 300 index was 25.48%, compared to 6.07% for ordinary CSI 300 index funds, indicating the effectiveness of the index enhancement strategy [5]. Group 2: Performance Comparison - Over the past decade, the index-enhanced fund index has shown significant excess returns, with a gain of 24.88% compared to -18.05% for the CSI 300 index and 2.26% for stock index funds [2][3]. - The performance of index-enhanced products is particularly notable during periods of market recovery, as they benefit from both beta returns from the underlying index and alpha returns from active management strategies [7]. Group 3: Mechanisms of Index Enhancement - The enhancement is achieved through two core components: modeling stock returns and optimizing the portfolio relative to the benchmark index [8]. - Three primary methods for achieving index enhancement include: 1. Multi-factor stock selection models that assess various factors such as value, momentum, growth, sentiment, and quality to improve stock selection accuracy [10]. 2. AI stock selection techniques that utilize machine learning and deep learning to uncover patterns in historical data and enhance stock selection efficiency [11][12]. 3. Fundamental enhancement strategies that analyze a company's financial health and operational efficiency to identify investment opportunities [13]. Group 4: Key Indicators for Index Enhanced Funds - When selecting index-enhanced funds, important indicators to consider include annualized excess returns, tracking error, information ratio, maximum drawdown, daily and monthly win rates, all centered around the core metric of daily excess returns [13].

Core Viewpoint - The recent surge in the financial sector, particularly in banking, is attributed to the upcoming public fund regulations, which may compel fund managers to adjust their portfolios to align with performance benchmarks [3][14]. Group 1: Public Fund Regulations - A significant aspect of the new public fund regulations is the requirement for fund managers whose products underperform their benchmarks by more than 10% over three years to see a notable decrease in their performance compensation [9][12]. - The regulations challenge fund managers to create stable excess returns while closely tracking performance benchmarks, leading to a potential shift in investment strategies [26][27]. Group 2: Investment Strategies - Fund managers face a dilemma between adjusting their portfolio weights to align with benchmarks or changing their performance benchmarks to better fit their investment styles [16][24]. - Adjusting portfolio weights may protect fund managers' compensation but could dilute their investment uniqueness, increasing the selection power of fund companies [19][20]. - Changing performance benchmarks to align with fund managers' styles could lead to challenges, especially if managers frequently change, raising questions about the stability of benchmarks [24][25]. Group 3: Market Impact - The strong binding of funds to performance benchmarks is expected to reduce market volatility, as fund managers may limit their participation in hot sectors, leading to lower price increases in those areas [21][22][23]. - A potential shift of funds from sectors like electronics to the financial sector could occur if fund managers adjust their holdings based on performance benchmarks [25]. Group 4: Future Trends - The rise of quantitative index-enhanced strategies is anticipated, as these strategies may become more prevalent in response to the new regulations, combining with active management by fund managers [27][28].

证 券 研 2025 年 05 月 19 日 基准约束下，多大比例的偏离较为 合适？ ——后明星时代公募基金研究系列之五 本研究报告仅通过邮件提供给 中庚基金 使用。1 证券分析师 沈思逸 A0230521070001 shensy@swsresearch.com 杨俊文 A0230522070001 yangjw@swsresearch.com 邓虎 A0230520070003 denghu@swsresearch.com 研究支持 杨俊文 A0230522070001 yangjw@swsresearch.com 联系人 杨俊文 (8621)23297818× yangjw@swsresearch.com 权 益 量 化 研 究 请务必仔细阅读正文之后的各项信息披露与声明 量 化 策 略 究 报 告 相关研究 - ⚫ 探讨如何在业绩比较基准的约束下调整投资策略：对于国内主动管理人来说，除了量化 指数增强产品一般有严格的约束，其他以自下而上选股为主的管理人此前往往未有相关 经验，如何在业绩比较基准的约束下调整投资策略成为当下关注的重点。本报告中，我 们重点讨论两种可能的调整方案，并关注不同方案下跑输基准一 ...

Core Viewpoint - The rapid growth of index-enhanced funds in the market is driven by the evolution of market conditions and the increasing demand from investors for more sophisticated investment tools [1] Group 1: Market Overview - As of the end of Q1 2025, there are 327 index-enhanced funds with a total scale exceeding 200 billion yuan, representing an increase of over 80% since the end of 2020 [1] - The demand for index-enhanced strategies is rising due to the maturation of investors and the deepening of capital markets [1] Group 2: Definition and Strategy - Quantitative index enhancement involves tracking benchmark indices while optimizing stock selection through quantitative models to pursue excess returns (Alpha) [2] - Index-enhanced funds combine passive tracking of indices with active management strategies, such as multi-factor models and AI stock selection, to achieve superior performance [3][4] Group 3: Performance Comparison - Over the past decade, index-enhanced funds have demonstrated significant excess returns, with the Wind index-enhanced fund index achieving a 24.88% increase, while the CSI 300 index and stock index funds saw returns of -18.05% and 2.26%, respectively [3][4] - As of May 12, 2025, the average return of CSI 300 index-enhanced funds is 25.48%, compared to 6.07% for regular CSI 300 index funds, indicating the effectiveness of the index enhancement strategy [7] Group 4: Mechanisms of Enhancement - Quantitative index enhancement typically involves two core components: modeling stock returns and optimizing the portfolio relative to the benchmark index [9] - The three main methods for achieving index enhancement include: 1. Multi-factor stock selection models that assess various factors such as value, momentum, and quality [10] 2. AI stock selection techniques that utilize machine learning and deep learning to identify patterns in historical data [11] 3. Fundamental enhancement strategies that analyze a company's financial health to optimize the investment portfolio [12] Group 5: Key Indicators for Selection - When selecting index-enhanced funds, important indicators to consider include annualized excess returns, tracking error, information ratio, maximum drawdown, and win rates [13]

策略周观点：一季报全行业业绩综述 20250511 摘要 • 上周市场受关税扰动及政策事件催化影响显著，板块走势分化。本周持震 荡观点，关税问题仍存变数，主要宽基指数已补上 4 月 7 日缺口，企业盈 利影响已被定价反映，但实际关税问题尚未完全解决，因此需保持谨慎态 度。 • 配置方面，建议维持泛科技、内需及红利组合。公募基金新规要求连续三 年业绩跑赢基准 10 个点以上的基金扣减管理费，将引导资金向基准指数 配置，利好沪深 300 或大市值风格，以及金融、公用事业、消费等公募欠 配行业。 • 长期来看，类平准基金有利于大市值股票，尤其是沪深 300 指数，加大险 资入市也利好红利风格。衍生品市场显示市场观望情绪和政策托底共同作 用下的低波动状态，推荐股票市场采用哑铃型配置，即红利加科技板块。 • 当前更偏好港股，因关税缓和窗口期内港股对外部变化弹性更大，资金面 从 4 月下旬开始转为净流入，内需消费、科技及红利板块在港股市场相关 公司质地更优。不看好美股，因美股处于降息预期不低但衰退预期不高的 状态，二季度压力较大。 Q&A 请您介绍一下 A 股、港股和海外市场在过去一周的表现及主要影响因素。 上周市场的主 ...