这类产品，指数增强效果大分化！

Core Viewpoint - In 2025, the performance of enhanced index funds showed significant differentiation, with an average net value growth rate exceeding 32% and over 80% achieving positive excess returns, indicating a trend towards diversified and refined enhancement strategies in the industry [2][4]. Performance Highlights - The average net value growth rate of enhanced index funds reached 32.51% in 2025, with an average excess return of 5.35% [4]. - Enhanced index products focusing on small-cap stocks and technology sectors performed exceptionally well, with specific funds like Dongcai's Zhongzheng Nonferrous Metals Enhanced Index Fund and Huabao's Rare Metals Theme Fund achieving returns of 91.50% and 88.55%, respectively [4]. - A total of 52 enhanced index funds recorded excess returns exceeding 10%, with the highest being Huaitianfu's Guozheng 2000 Enhanced Index Fund at 25.22% [5]. Differentiation in Broad-based Products - There was a notable performance disparity among broad-based enhanced index products, with those tracking mid and small-cap indices like Zhongzheng 500 and Zhongzheng 2000 showing significantly higher excess returns compared to large-cap indices like Huasheng 300 and Shanghai 50 [10]. - For instance, funds tracking the Zhongzheng 500 index had returns exceeding 43%, while some funds underperformed with gains below 20% [10]. Market Dynamics and Strategy Insights - The performance of enhanced index products varied significantly between the first and second halves of 2025, influenced by different market drivers, with small-cap stocks performing better in the first half and a shift towards core stocks in the second half [11][12]. - The enhanced index funds' performance was attributed to multi-factor quantitative strategies that considered various factors such as fundamentals, technical indicators, and analyst expectations [12]. Future Trends in Enhanced Index Strategies - The industry is expected to see a trend towards more diversified and refined enhancement strategies, with AI playing a crucial role in factor discovery, model building, and portfolio optimization [15][16]. - Fund managers are focusing on developing strategies that balance risk and return, particularly in high liquidity environments, while also optimizing for different market conditions [13][16].