Quantitative Models and Construction Methods 1. Model Name: Davis Double Hit Strategy - **Model Construction Idea**: The strategy involves buying stocks with growth potential at a low P/E ratio and selling them after the growth materializes and the P/E ratio increases, achieving a "double hit" effect through EPS growth and P/E expansion[7] - **Model Construction Process**: - Identify stocks with accelerating earnings growth - Evaluate the reasonableness of stock pricing using the PEG indicator, which considers both P/E and growth rate[7] - **Model Evaluation**: The strategy demonstrated strong stability, with annual excess returns exceeding 11% in all seven years of the backtest period from 2010 to 2017[8] 2. Model Name: Net Profit Gap Strategy - **Model Construction Idea**: This strategy combines fundamental and technical analysis, focusing on two key aspects: - "Net profit" refers to earnings surprises, typically exceeding market expectations - "Gap" refers to a significant upward price gap on the first trading day after the earnings announcement, reflecting market recognition and sentiment[11] - **Model Construction Process**: - Select stocks with earnings surprises based on earnings forecasts and financial reports from the past two months - Rank stocks by the magnitude of the price gap on the earnings announcement day - Construct an equal-weight portfolio of the top 50 stocks[11] 3. Model Name: CSI 300 Enhanced Portfolio - **Model Construction Idea**: The model is based on investor preferences, categorized into GARP (Growth at a Reasonable Price), growth, and value styles[16] - GARP investors focus on companies with strong profitability and stable growth potential at relatively low prices - Growth investors prioritize high-growth companies based on revenue, gross profit, and net profit growth - Value investors prefer companies with high and stable ROE over the long term[16] - **Model Construction Process**: - Construct the PBROE factor using the difference in percentiles between PB and ROE to identify undervalued stocks with strong profitability - Construct the PEG factor using the difference in percentiles between P/E and growth rate to find undervalued stocks with reliable growth potential[16] --- Backtest Results of Models 1. Davis Double Hit Strategy - **Annualized Return**: 26.45% (2010-2017)[8] - **Annualized Excess Return**: 21.08% (2010-2017)[8] - **YTD Absolute Return**: 16.55%[8] - **YTD Excess Return**: 14.14% (relative to CSI 500 Index)[8] - **Weekly Excess Return**: -0.15% (relative to CSI 500 Index)[8] - **Current Period Excess Return**: 1.75% (2025-05-06 to 2025-06-27)[8] 2. Net Profit Gap Strategy - **Annualized Return**: 29.21% (2010-present)[14] - **Annualized Excess Return**: 27.45% (2010-present)[14] - **YTD Absolute Return**: 27.39%[14] - **YTD Excess Return**: 24.98%[14] - **Weekly Excess Return**: 3.24%[14] 3. CSI 300 Enhanced Portfolio - **Annualized Return**: 9.75% (full sample period)[18] - **Annualized Excess Return**: 9.13% (full sample period)[18] - **YTD Absolute Return**: 12.90%[20] - **YTD Excess Return**: 13.23% (relative to CSI 300 Index)[20] - **Weekly Excess Return**: -0.10%[20] - **Monthly Excess Return**: 2.40%[20]

Group 1: Davis Double-Click Strategy - The Davis Double-Click strategy involves buying stocks with growth potential at a lower price-to-earnings (PE) ratio, waiting for growth to manifest, and then selling for a multiplier effect, achieving returns from both earnings per share (EPS) and PE [1][8] - The strategy achieved an annualized return of 26.45% during the backtest period from 2010 to 2017, exceeding the benchmark by 21.08% [10] - Year-to-date, the strategy has a cumulative absolute return of 14.65%, outperforming the CSI 500 index by 14.40% [11] Group 2: Net Profit Discontinuity Strategy - The Net Profit Discontinuity strategy combines fundamental and technical analysis, focusing on stocks that exceed earnings expectations and show a significant upward price gap on the first trading day after earnings announcements [13] - Since 2010, this strategy has achieved an annualized return of 28.69%, with an annualized excess return of 27.07% over the benchmark [16] - Year-to-date, the strategy has a cumulative absolute return of 18.68%, outperforming the benchmark index by 18.42% [16] Group 3: Enhanced CSI 300 Portfolio - The Enhanced CSI 300 portfolio is constructed based on investor preferences, including GARP (Growth at a Reasonable Price), growth, and value investing styles, focusing on stocks with low price-to-book (PB) ratios and high return on equity (ROE) [18] - The portfolio has shown stable excess returns in historical backtesting, with a year-to-date excess return of 14.31% relative to the CSI 300 index [22] - The strategy's performance this week yielded an excess return of 0.95% [22]

Quantitative Models and Construction Methods 1. Model Name: Davis Double Hit Strategy - **Model Construction Idea**: The strategy involves buying stocks with growth potential at a low P/E ratio and selling them after growth materializes and the P/E ratio increases, achieving a "double hit" effect from EPS and P/E[7] - **Model Construction Process**: - Identify stocks with accelerating earnings growth - Evaluate the reasonableness of stock pricing using the PEG indicator - Select stocks with high earnings growth potential and controlled downside P/E risk[7] - **Model Evaluation**: The strategy demonstrates strong stability, with annualized excess returns exceeding 11% in all seven years of the backtest period[8] 2. Model Name: Net Profit Gap Strategy - **Model Construction Idea**: This strategy combines fundamental and technical factors, focusing on stocks with earnings surprises ("net profit") and a significant upward price gap after earnings announcements ("gap")[11] - **Model Construction Process**: - Screen stocks with earnings surprises based on earnings forecasts and financial reports from the past two months - Rank stocks by the magnitude of the price gap on the first trading day after the earnings announcement - Construct an equal-weight portfolio of the top 50 stocks[11] - **Model Evaluation**: The strategy achieves high annualized returns and excess returns, indicating strong performance and market recognition of earnings surprises[14] 3. Model Name: CSI 300 Enhanced Portfolio - **Model Construction Idea**: Based on investor preferences, the strategy uses factors such as PBROE and PEG to identify undervalued stocks with strong profitability and growth potential[16] - **Model Construction Process**: - Construct the PBROE factor as the difference between the percentile ranks of PB and ROE to identify stocks with low valuation and high profitability - Construct the PEG factor as the difference between the percentile ranks of PE and growth rate to find undervalued stocks with reliable growth potential - Combine these factors to build an enhanced CSI 300 portfolio[16] - **Model Evaluation**: The strategy demonstrates stable historical excess returns, aligning with investor preferences for growth and value[20] --- Backtest Results of Models 1. Davis Double Hit Strategy - **Annualized Return**: 26.45% (2010-2017)[8] - **Annualized Excess Return**: 21.08% (2010-2017)[8] - **Year-to-Date Absolute Return**: 7.15% (2025)[8] - **Year-to-Date Excess Return**: 4.80% (2025)[8] - **Weekly Excess Return**: -0.65% (2025)[8] - **Monthly Excess Return**: -1.07% (2025)[8] 2. Net Profit Gap Strategy - **Annualized Return**: 28.60% (2010-present)[14] - **Annualized Excess Return**: 26.80% (2010-present)[14] - **Year-to-Date Absolute Return**: 9.39% (2025)[14] - **Year-to-Date Excess Return**: 7.05% (2025)[14] - **Weekly Excess Return**: 3.07% (2025)[14] 3. CSI 300 Enhanced Portfolio - **Annualized Return**: 8.99% (full sample)[18] - **Annualized Excess Return**: 8.42% (full sample)[18] - **Year-to-Date Absolute Return**: -0.98% (2025)[20] - **Year-to-Date Excess Return**: 0.16% (2025)[20] - **Weekly Excess Return**: 1.94% (2025)[20] - **Monthly Excess Return**: -2.49% (2025)[20]