Group 1: Weekly Index Enhanced Portfolio Performance - The CSI 300 index enhanced portfolio achieved an excess return of 1.06% this week and 4.21% year-to-date [1][5] - The CSI 500 index enhanced portfolio recorded an excess return of -0.05% this week and 6.45% year-to-date [1][5] - The CSI 1000 index enhanced portfolio had an excess return of 0.72% this week and 9.41% year-to-date [1][5] - The CSI A500 index enhanced portfolio reported an excess return of 0.36% this week and 6.44% year-to-date [1][5] Group 2: Stock Selection Factor Performance Tracking - In the CSI 300 component stocks, factors such as three-month volatility, one-month volatility, and standardized unexpected earnings performed well [1][6] - In the CSI 500 component stocks, factors like quarterly revenue growth year-on-year, standardized unexpected revenue, and non-liquidity shocks showed strong performance [1][6] - For the CSI 1000 component stocks, factors such as EPTTM one-year percentile, SPTTM, and BP performed well [1][6] - In the CSI A500 index component stocks, factors like BP, quarterly EP, and three-month volatility showed good performance [1][6] - Among publicly offered fund heavy stocks, factors like quarterly unexpected magnitude, standardized unexpected earnings, and standardized unexpected revenue performed well [1][6] Group 3: Public Fund Index Enhanced Product Performance Tracking - The CSI 300 index enhanced products had a maximum excess return of 1.37%, a minimum of -0.21%, and a median of 0.32% this week [1][19] - The CSI 500 index enhanced products had a maximum excess return of 0.92%, a minimum of -0.09%, and a median of 0.35% this week [1][20] - The CSI 1000 index enhanced products had a maximum excess return of 0.98%, a minimum of -0.21%, and a median of 0.24% this week [1][22] - The CSI A500 index enhanced products had a maximum excess return of 0.70%, a minimum of -0.19%, and a median of 0.36% this week [1][24]

Group 1 - The core viewpoint of the article is to track the performance of index enhancement portfolios and the effectiveness of various stock selection factors across different indices [1][2][3] Group 2 - The performance of the HuShen 300 index enhancement portfolio showed an excess return of 0.37% for the week and 2.84% year-to-date [5] - The performance of the Zhongzheng 500 index enhancement portfolio showed an excess return of 1.06% for the week and 5.87% year-to-date [5] - The Zhongzheng 1000 index enhancement portfolio had an excess return of 1.73% for the week and 8.10% year-to-date [5] - The Zhongzheng A500 index enhancement portfolio reported an excess return of 0.53% for the week and 5.78% year-to-date [5] Group 3 - In the HuShen 300 component stocks, factors such as one-month reversal, expected PEG, and expected EPTTM performed well [6] - In the Zhongzheng 500 component stocks, one-month reversal, single-quarter SP, and SPTTM factors showed strong performance [6] - For Zhongzheng 1000 component stocks, factors like DELTAROA, executive compensation, and standardized expected external earnings performed well [6] - In the Zhongzheng A500 index component stocks, three-month reversal, single-quarter ROE, and one-month reversal factors were effective [6] - Among public fund heavy stocks, one-month reversal, three-month reversal, and single-quarter EP factors performed well [6] Group 4 - The HuShen 300 index enhancement products had a maximum excess return of 1.10%, a minimum of -0.76%, and a median of 0.06% for the week [19] - The Zhongzheng 500 index enhancement products had a maximum excess return of 0.99%, a minimum of -0.08%, and a median of 0.40% for the week [21] - The Zhongzheng 1000 index enhancement products had a maximum excess return of 0.81%, a minimum of -0.28%, and a median of 0.26% for the week [20] - The Zhongzheng A500 index enhancement products had a maximum excess return of 0.39%, a minimum of -0.52%, and a median of 0.23% for the week [22] Group 5 - The total number of public fund HuShen 300 index enhancement products is 67, with a total scale of 778 billion [16] - There are 70 Zhongzheng 500 index enhancement products with a total scale of 454 billion [16] - The Zhongzheng 1000 index enhancement products consist of 46 products with a total scale of 150 billion [16] - The Zhongzheng A500 index enhancement products have 35 products with a total scale of 223 billion [16]