本文首发于公众号"私募排排网"。 （点击↑↑ 上图查看详情 ） 导语 周一（2025年8月18日），上证指数收盘于3728.03点，正式站稳3700点同时也创十年以来新高， 虽然下午整体震荡回落，但释放了较为强劲 的市场交易信号。自上周开始不仅沪深两市单日成交额继去年11月以来再度突破2万亿水平，融资余额也时隔十年再度回到2万亿元水平，同时 十年期国债期货价格较7月高点已下跌约0.5%左右，表明投资者风险偏好上升的同时居民存款向权益市场陆续迁移。历史上沪指在突破整数点 位时向来要遭遇一定历史套牢盘阻力，3700点附近为2021年筹码密集区，如若有效突破还需要增量资金持续放量。（可参考： 幻方、九坤、 天演、蒙玺等18家百亿私募旗下产品悉数创新高！超7成百亿私募产品创了新高！ ） 近些年来，多数私募投资者在市场复杂波动的行情中采取"量化为底，多点开花"的持仓结构， 在指数不断突破高位的背景下，投资者该如何优 化自己的投资组合呢？ | 私募(二级)策略 | 有业绩显示的 | 1-7月收益均值 | -7 E DE K ? | 1-7 EDEK | | | --- | --- | --- | --- | --- | ...

Core Insights - The median excess return of index-enhanced products has significantly improved compared to last year [1] - The China Securities 1000 index-enhanced products have shown particularly outstanding excess returns, followed by the China Securities 500 index-enhanced products [1] Group 1: Market Dynamics - The strong performance of public index-enhanced products this year is attributed to two main factors: accelerated rotation among market sectors and overall activity in small-cap stocks [1] - There is a noticeable cycle of rotation between large-cap and small-cap stocks in the Chinese market, with the current small-cap advantage cycle starting in 2021 [1] Group 2: Investment Strategy - Future index profitability and growth potential should be considered for index allocation, alongside short-term factors such as valuation and market sentiment [1]

Core Insights - The company faced its most severe crisis since its establishment due to regulatory measures imposed on its products in early 2024, prompting a deep reflection and reform [1][2] - The leadership emphasizes the necessity of reform, stating that if ineffective, the company's existence would be questioned due to the abundance of alternative investment institutions in the market [2][3] Group 1: Company Reforms and Governance - The company has initiated comprehensive reforms in cultural management and governance, establishing a collaborative mechanism to eliminate management gaps [2][4] - A new division of responsibilities has been established, with one leader focusing on cultural and governance issues while the other concentrates on research and technical breakthroughs [2][4] - The leadership believes that the journey to becoming a top-tier quantitative hedge fund is long and challenging, requiring continuous improvement and adaptation [2][4] Group 2: Compliance and Risk Management - The company has implemented a systematic overhaul of compliance and risk management, treating them as lifelines for the organization [4][5] - A full-process integration of risk control rules has been achieved, embedding compliance parameters into strategy design to prevent risks from the outset [5][6] - A dual-layer defense system has been established, combining strategy and system-level controls to ensure all trading actions remain within compliance [5][6] Group 3: Investment Strategy and Performance - The company has strengthened its focus on fundamental factor research, which is increasingly important in the evolving market landscape [7][8] - The performance of quantitative strategies has been strong, with average returns for private quantitative stock selection strategies reaching 11.50% and 14.85% in the first half of the year [8][9] - The company has adjusted its product line to enhance its competitive edge, focusing on both alpha and beta returns while expanding its index-enhanced products [8][9] Group 4: Future Outlook - The company plans to continue expanding its fundamental factor research, exploring new factors and refining existing ones to improve their effectiveness [7][8] - The leadership aims to maintain a balance between long-term and short-term signals in their investment strategies to better capture market opportunities [9]

Core Viewpoint - Lingjun Investment is undergoing significant reforms in response to a major crisis, emphasizing the need for effective governance and cultural development to ensure its survival and competitiveness in the quantitative investment industry [1][2]. Group 1: Company Challenges and Reforms - Lingjun Investment faced its most severe challenge since its inception due to self-regulatory measures imposed by exchanges in early 2024, leading to a critical reflection on its operational practices [1][2]. - The company has implemented deep reforms in cultural and governance aspects, establishing a "co-management + specialization" collaborative mechanism to address management gaps [2][3]. - The leadership emphasizes that if reforms do not yield results, the company's existence is at stake, highlighting the competitive nature of the investment industry [2][3]. Group 2: Compliance and Risk Management Enhancements - Lingjun Investment has prioritized compliance and risk management, integrating risk control parameters into all trading strategies to ensure adherence to regulatory requirements from the outset [3][4]. - A dual-layered risk control system has been established, incorporating strict rules within the trading system to prevent non-compliant transactions [4]. - The company has shifted to a centralized risk management framework, allowing for comprehensive risk analysis across all products, aligning with regulatory expectations for institutional accountability [4][5]. Group 3: Focus on Fundamental Factor Research - The importance of fundamental factor research has increased in the quantitative investment landscape, with Lingjun Investment deepening its focus on this area since 2015 to enhance strategy resilience and differentiation [5][6]. - The company aims to explore new fundamental factors and refine existing ones to improve their quality and effectiveness in investment models [6]. Group 4: Performance and Strategy Adjustments - The quantitative investment strategies have shown strong performance in 2023, with average returns of 11.50% and 14.85% for private equity quantitative stock selection and CSI 1000 index enhancement strategies, respectively [6][7]. - Lingjun Investment is adjusting its product line to maintain its competitive edge, focusing on both its flagship quantitative stock selection products and expanding index enhancement offerings to meet diverse investor needs [7][8]. - Recent strategy upgrades have improved the company's ability to capture market opportunities across different time horizons, contributing to its strong performance in the current market environment [8].

Core Insights - The index-enhanced private equity products delivered impressive performance in the first half of 2025, with an average return of 17.32% across 705 products [1] - Larger private equity firms (over 5 billion) showed a significant advantage, achieving an average return of 18.30% [1] - Smaller private equity firms (0-10 billion) underperformed, with an average return of 16.41% [1] Performance Factors - The strong performance of index-enhanced private equity products is attributed to three main factors: the structural characteristics of the A-share market, the advantages of quantitative strategies, and the relaxation of regulatory policies on mergers and acquisitions [2] - The A-share market exhibited a notable small-cap style dominance, with increased individual stock volatility and high average daily trading volume, creating an ideal trading environment for quantitative strategies [2] - Quantitative strategies effectively captured excess returns, especially in volatile markets, due to their data-driven decision-making and ability to avoid subjective emotional interference [2] Product Performance Breakdown - Among the products with performance data, 76 other index-enhanced products and 258 air index-enhanced products achieved average returns of 20.84% and 17.88%, respectively [3] - The small-cap style's strong performance laid a solid foundation for related index-enhanced products, with the CSI 1000 index-enhanced products averaging a return of 20.26% and the CSI 500 index-enhanced products averaging 15.31% [3] - In contrast, the CSI 300 index-enhanced products lagged, with an average return of only 6.31%, reflecting the overall weak performance of the CSI 300 index [3]

Core Viewpoint - The article emphasizes the performance of quantitative stock strategies in the first half of 2025, highlighting the importance of both the strategy environment and the capabilities of fund managers in achieving superior returns [1][2]. Performance Summary - The average performance of various private equity strategies in the first half of 2025 shows that quantitative stock strategies significantly outperformed others, with a return of 27.60%, while the next best was the 中证 2000 index with 29.28% [3][4]. - The performance of small-cap indices, such as 中证 1000 and 中证 2000, benefited from the strong performance of small-cap stocks, contributing to the overall success of quantitative strategies [4][11]. Strategy Environment - The liquidity environment in the market reached historical highs, with average daily trading volume around 1.2 trillion, which facilitated better stock selection and reduced transaction costs for quantitative models [6]. - The concentration of market trends was at historical lows, allowing diversified quantitative models to effectively capture rapid rotations in themes such as AI and robotics [10]. - The strong performance of small-cap stocks was a key factor, with small-cap indices outperforming large-cap indices, leading to a heightened preference for small-cap stocks among quantitative strategies [11][12]. Manager Capabilities - Specific quantitative strategies demonstrated exceptional performance due to their ability to dynamically capture alpha opportunities across different market capitalizations [17][20]. - The strategy employed by the fund manager SGD, which involved timing the market and switching between small-cap and large-cap stocks based on valuation assessments, resulted in a return of over 50% with minimal drawdown [20][21]. - The fund manager JK achieved a return of 33% with a 20% excess return, attributed to significant improvements in algorithmic strategy iterations and machine learning applications [22][24]. Conclusion - The article concludes that the strong performance of quantitative stock strategies in the first half of 2025 is primarily due to favorable market conditions and the exceptional capabilities of fund managers, underscoring the importance of liquidity, trading volume, and market sentiment in investment decisions [24].

Core Insights - The A-share market has shown significant structural characteristics this year, with a volatile market environment and rapid sector rotation providing an ideal operating soil for index enhancement (referred to as "指增") strategies [1] - Private equity fund industry index enhancement products have performed well, demonstrating strong excess return capabilities, with an average annual return of 10.59% and an average excess return of 11.92% for 682 products in the first five months [1][2] Market Environment - The market style has shifted towards small-cap stocks, which benefits quantitative index enhancement strategies that have a natural advantage in small-cap stock allocation [1] - High market liquidity has created favorable conditions for index enhancement strategies, expanding the range of investable targets and significantly reducing transaction costs [1] Product Performance - Among the 128 index enhancement products based on the CSI 1000 index, the average excess return was 10.95%, with 97.66% of products achieving positive excess returns, leading to an average return of 12.24% [2] - In contrast, the 197 products based on the CSI 500 index had an average excess return of 10.25%, but due to a decline in the index, the average return was only 9.20% [2] - The CSI 300 index enhancement products performed the weakest, with an average return of only 2.49% [2] Management Scale Insights - Large private equity firms (with assets under management over 5 billion yuan) showed a clear advantage in index enhancement strategies, achieving an average excess return of 12.86% across 254 products, with nearly 100% achieving positive excess returns [3] - Smaller private equity firms (under 1 billion yuan) also found opportunities in specific areas, with 40 products achieving excess returns over 20%, and one even reaching 70.07% [3] - Medium-sized private equity firms (1 billion to 5 billion yuan) maintained a balance of stability and flexibility, with 96.69% of their products achieving positive excess returns [3] Competitive Advantages - Large institutions leverage resource advantages, including strong technical research investments, specialized research teams, and high market recognition, which enhance strategy execution efficiency [4] - Future competition among private equity index enhancement products is expected to focus on data mining depth, trading execution precision, and risk control capabilities [4]

Group 1 - The A-share market has maintained a volatile trend this year, with private equity institutions seizing opportunities, resulting in impressive performance [1] - As of May 31, 682 index-enhanced products with performance displays achieved an average return of 10.59% and an average excess return of 11.92%, with 94.57% of products showing positive excess returns [1] - Among these, 403 products had excess returns of at least 10%, with 312 products in the range of 10%-19.99%, 76 products between 20%-29.99%, and 15 products exceeding 30% [1] Group 2 - The CSI 1000 index-enhanced products had an average excess return of 10.95%, with 97.66% of products achieving positive excess returns, while the index itself had a positive average return of 12.24% [1] - The CSI 500 index-enhanced products had an average excess return of 10.25%, with 96.95% of products showing positive excess returns, but the index's negative performance resulted in an average return of 9.20% [1] Group 3 - The CSI 300 index-enhanced products performed the worst, with an average excess return of 5.02% and an average return of only 2.49% due to significant drag from the index [2] - Other index-enhanced products performed exceptionally well, with 60 products achieving an average return of 13.64% and an average excess return of 16.42%, all showing positive excess returns [2] - Air index-enhanced products had an average return of 11.35% and an average excess return of 13.66%, with 90.31% of products achieving positive excess returns [2] Group 4 - Starstone Investment suggests focusing on whether companies exhibit positive changes and if these changes are fully priced in by the market, rather than following stocks with high cumulative gains [3] - Zhengyuan Investment emphasizes adjusting holdings to avoid external disturbances and seek incremental growth, reducing exposure to export-oriented companies affected by tariff disputes while increasing positions in sectors related to the Belt and Road Initiative, domestic consumption upgrades, and military demand [3]

Core Viewpoint - The article emphasizes that the China Securities 1000 Index Enhanced Products (referred to as "指增产品") are a popular choice for investors due to their dual return logic of index beta (β) and excess alpha (α) [2] Group 1: Characteristics of the China Securities 1000 Index - The China Securities 1000 Index consists of 1000 stocks that are smaller in size and have good liquidity, excluding stocks from the CSI 300 and CSI 500 [4] - The index covers all 31 first-level industries, with the top ten stocks accounting for only about 3.75%, effectively diversifying industry risk and enhancing anti-risk capabilities [4] - The index's component stocks are primarily small and medium-sized companies, particularly in technology, which are expected to benefit from China's transition to high-quality economic development [4][5] Group 2: Growth Potential and Elasticity - As of June 4, 2025, the index includes 147 national-level specialized "little giant" enterprises, a higher proportion than the CSI 300 and CSI 500 [5] - The top five industries by weight in the index are Electronics (14.67%), Pharmaceuticals (10.61%), Computers (8.14%), Power Equipment (8.03%), and Machinery (6.34%), collectively accounting for nearly 48% [5] - The historical maximum increase of the China Securities 1000 Index reached 342% during the rapid development of the smartphone and "Internet+" industries from 2013 to 2015, significantly outperforming other indices [7] Group 3: Performance and Valuation - Since its base date on December 31, 2004, the annualized growth rate of the China Securities 1000 Index has reached 9.57%, with a maximum increase of 2143%, indicating strong explosive potential during market rallies [8] - As of June 4, 2025, the price-to-earnings ratio (TTM) of the index is 26.16, positioned at approximately the 45th percentile historically, suggesting a relatively reasonable valuation and a good entry point for investors [8] Group 4: Performance of Enhanced Products - As of the end of May 2025, private equity products based on the China Securities 1000 Index have significantly outperformed the index across various time frames, highlighting their attractiveness for asset allocation [11] - The average returns of private equity China Securities 1000 Index Enhanced Products for 2025 year-to-date, the last six months, the last year, the last three years, and the last five years have all shown substantial outperformance compared to the index [12] Group 5: Top Performing Products - The article lists the top 20 private equity products based on excess returns over the past three years, indicating strong performance from several large private equity firms [13]

Group 1 - The A-share market has shown strong adaptability and effective investment strategies in the context of market fluctuations since 2025, with an average return of 5.64% for 590 index-enhanced private equity products as of February 28 [1] - The CSI 1000 index has performed the best since 2025, with a year-to-date increase of 5.25% as of February 28, while the CSI 500 and CSI 300 indices have shown increases of 2.34% and a decrease of 1.14%, respectively [1] - The CSI 1000 index-enhanced private equity products have outperformed others this year, with an average return of 7.48% for 117 products, leading among various types of index-enhanced private equity products [1] Group 2 - The market is expected to shift focus back to fundamentals following the conclusion of the Two Sessions, with government work reports outlining the development direction for the year, and themes like artificial intelligence and robotics gaining traction [2] - As two core sectors continue to rise, overall market volatility is increasing, and there is a growing expectation for low-priced stocks to rebound, with the market entering the annual report and quarterly report disclosure period [2] - The overall market performance is anticipated to become more balanced, with cyclical sectors like non-ferrous metals and chemicals beginning to strengthen, and dividend stocks expected to regain upward momentum [2] Group 3 - The domestic economy is undergoing a transformation period of new and old kinetic energy conversion, with structural valuation reshaping opportunities in the A-share market due to accelerated development of new productive forces and supportive policies [3] - With the implementation of existing policies and the introduction of a package of new policies, the domestic economic fundamentals are expected to gradually improve, leading to increased investor confidence and a more stable market [3] - Key investment themes include technology innovation based on self-control logic, expansion of domestic demand, and high-margin dividend sectors, particularly focusing on central state-owned enterprises [3]