Quantitative Factors and Construction Methods 1. Factor Name: Small Market Cap - **Factor Construction Idea**: This factor captures the size effect, where smaller market capitalization stocks tend to outperform larger ones over time [13] - **Factor Construction Process**: The factor is calculated as the logarithm of the market capitalization of a stock [13] - **Factor Evaluation**: The factor demonstrated strong performance in recent periods, particularly over the past week, month, and year [8][10] 2. Factor Name: Beta - **Factor Construction Idea**: This factor measures the sensitivity of a stock's returns to market returns, capturing systematic risk [13] - **Factor Construction Process**: Beta is calculated as the regression coefficient of a stock's returns against market returns over the past 490 trading days [13] - **Factor Evaluation**: The factor showed strong performance in recent periods, particularly over the past week and month [8][10] 3. Factor Name: 1-Month Specificity - **Factor Construction Idea**: This factor measures the idiosyncratic component of stock returns, independent of systematic factors [13] - **Factor Construction Process**: It is calculated as \( 1 - R^2 \), where \( R^2 \) is derived from regressing daily stock returns against the Fama-French three-factor model over the past 20 trading days [13] - **Factor Evaluation**: The factor exhibited strong performance in the past week, month, and year [8][10] 4. Factor Name: 1-Month Reversal - **Factor Construction Idea**: This factor captures the short-term reversal effect, where stocks with poor recent performance tend to rebound [13] - **Factor Construction Process**: It is calculated as the cumulative return of a stock over the past 20 trading days [13] - **Factor Evaluation**: The factor performed well over the past year [8][10] 5. Factor Name: Fama-French 1-Month Residual Volatility - **Factor Construction Idea**: This factor measures the residual volatility of stock returns after accounting for systematic factors [13] - **Factor Construction Process**: It is calculated as the standard deviation of residuals from regressing daily stock returns against the Fama-French three-factor model over the past 20 trading days [13] - **Factor Evaluation**: The factor demonstrated strong performance over the past year [8][10] --- Factor Backtesting Results 1. Small Market Cap - **IC Performance**: Weekly IC: 15.09%, Monthly IC: 6.09%, Yearly IC: 3.61%, Historical IC: 2.20% [9] - **Excess Return Performance**: Weekly: 1.67%, Monthly: 2.75%, Yearly: 18.13%, Historical Cumulative: 66.36% [11] 2. Beta - **IC Performance**: Weekly IC: 13.20%, Monthly IC: 5.67%, Yearly IC: 1.79%, Historical IC: 0.38% [9] - **Excess Return Performance**: Weekly: 1.85%, Monthly: 2.84%, Yearly: 9.25%, Historical Cumulative: -8.52% [11] 3. 1-Month Specificity - **IC Performance**: Weekly IC: 11.75%, Monthly IC: 6.36%, Yearly IC: 3.19%, Historical IC: 2.40% [9] - **Excess Return Performance**: Weekly: 1.38%, Monthly: 1.99%, Yearly: 9.59%, Historical Cumulative: 16.77% [11] 4. 1-Month Reversal - **IC Performance**: Weekly IC: 9.55%, Monthly IC: 3.46%, Yearly IC: 3.54%, Historical IC: 2.23% [9] - **Excess Return Performance**: Weekly: 1.25%, Monthly: 0.32%, Yearly: 4.73%, Historical Cumulative: -0.81% [11] 5. Fama-French 1-Month Residual Volatility - **IC Performance**: Weekly IC: 4.67%, Monthly IC: 5.09%, Yearly IC: 3.37%, Historical IC: 2.54% [9] - **Excess Return Performance**: Weekly: 0.44%, Monthly: 1.59%, Yearly: 9.67%, Historical Cumulative: 19.58% [11]

Group 1 - The core viewpoint of the article highlights the performance of various index-enhanced portfolios, indicating that the CSI 300 and CSI 500 index-enhanced portfolios achieved positive excess returns, while the CSI 1000 index-enhanced portfolio experienced a slight decline in excess returns this week [1][2][18]. Group 2 - The CSI 300 index-enhanced portfolio recorded an excess return of 0.44% this week and 0.80% year-to-date [1][2]. - The CSI 500 index-enhanced portfolio also achieved an excess return of 0.44% this week and 1.81% year-to-date [1][2]. - The CSI 1000 index-enhanced portfolio saw a decrease of 0.13% in excess return this week, with a year-to-date excess return of 0.50% [1][2]. Group 3 - In the CSI 300 component stocks, factors such as three-month turnover, dividend yield, and one-month turnover performed well [5]. - For the CSI 500 component stocks, factors like executive compensation, expected net profit month-on-month, and dividend yield showed strong performance [6]. - In the CSI 1000 component stocks, factors such as expected PEG, SPTTM, and one-month volatility performed well [10]. Group 4 - The public fund index-enhanced products for the CSI 300 had a maximum excess return of 1.67%, a minimum of -2.70%, and a median of 0.11% this week [18]. - The CSI 500 index-enhanced products had a maximum excess return of 1.55%, a minimum of -0.45%, and a median of 0.38% this week [19]. - The CSI 1000 index-enhanced products recorded a maximum excess return of 1.59%, a minimum of -0.87%, and a median of 0.30% this week [21].