基金量化观察：港股通 ETF 持续申报，金融地产主题基金业绩占优

• The report mentions the construction of enhanced strategy ETFs, which are based on indices such as CSI 300, CSI 500, CSI 1000, SSE STAR 50, and others. These ETFs aim to outperform their respective benchmarks through quantitative strategies and factor-based enhancements [23][24][35] - The construction process involves selecting stocks from the underlying index and applying quantitative models to optimize the portfolio. The models may include factor analysis, risk control, and return enhancement techniques. Specific formulas or methodologies are not detailed in the report [23][24][35] - Evaluation of enhanced strategy ETFs indicates that 18 out of 51 ETFs outperformed their benchmarks last week. Over the past year, 30 out of 33 ETFs achieved positive excess returns, showcasing the effectiveness of the strategy [23][24][35] - Testing results for enhanced strategy ETFs show varying excess returns. For example, the CSI 300 Enhanced ETF achieved a weekly excess return of 0.64%, while the CSI 500 Enhanced ETF achieved 1.42%. Over the past year, the CSI 1000 Enhanced ETF delivered an excess return of 28.67%, and the Guozheng 2000 Enhanced ETF achieved 33.35% [24][35][36]