- Model Name: Diffusion Index Model; Construction Idea: The model is based on the principle of price momentum, capturing industry trends through diffusion indices; Construction Process: The model tracks the weekly and monthly changes in the diffusion indices of various industries, ranking them accordingly. The formula for the diffusion index is not explicitly provided; Evaluation: The model has shown varying performance over the years, with significant drawdowns during market reversals[24][25][28] - Model Name: GRU Factor Model; Construction Idea: The model utilizes GRU (Gated Recurrent Unit) deep learning networks to process minute-level volume and price data, aiming to capture trading information; Construction Process: The model ranks industries based on GRU factors, which are derived from the deep learning network's analysis of trading data. The specific formula for GRU factors is not provided; Evaluation: The model has performed well in short cycles but has shown general performance in longer cycles[31][32][35] - Diffusion Index Model, Average Weekly Return: 0.89%, Excess Return Since July: -3.47%, Excess Return YTD: -0.45%[28] - GRU Factor Model, Average Weekly Return: 4.27%, Excess Return Since July: 1.34%, Excess Return YTD: -4.25%[35] - Factor Name: Diffusion Index; Construction Idea: The factor is based on the momentum of industry prices, capturing upward trends; Construction Process: The factor is calculated by observing the weekly and monthly changes in the diffusion indices of various industries. The specific formula is not provided; Evaluation: The factor has shown varying performance, with significant drawdowns during market reversals[24][25][28] - Factor Name: GRU Factor; Construction Idea: The factor is derived from GRU deep learning networks, capturing trading information from minute-level volume and price data; Construction Process: The factor is calculated by ranking industries based on the GRU network's analysis of trading data. The specific formula is not provided; Evaluation: The factor has performed well in short cycles but has shown general performance in longer cycles[31][32][35] - Diffusion Index Factor, Top Industries: Comprehensive Finance (1.0), Steel (1.0), Non-Bank Finance (0.999), Comprehensive (0.998), Non-Ferrous Metals (0.997), Home Appliances (0.995)[25] - GRU Factor, Top Industries: Banking (3.3), Real Estate (0.58), Oil & Petrochemicals (-1.26), Textile & Apparel (-1.73), Light Manufacturing (-2.49), Electric Power & Utilities (-2.83)[32]

Quantitative Models and Construction Methods - **Model Name**: Diffusion Index Model **Construction Idea**: The model is based on price momentum principles, aiming to capture upward trends in industry performance[25][37] **Construction Process**: 1. Calculate the diffusion index for each industry based on price momentum 2. Rank industries by their diffusion index values 3. Select industries with the highest diffusion index values for portfolio allocation **Formula**: Not explicitly provided in the report **Evaluation**: The model performs well during upward trends but struggles during reversals, as seen in historical performance[25][37] - **Model Name**: GRU Factor Model **Construction Idea**: The model leverages GRU (Gated Recurrent Unit) deep learning networks to analyze minute-level volume and price data for industry rotation[38][33] **Construction Process**: 1. Input minute-level volume and price data into the GRU network 2. Train the model using historical data to identify industry rotation signals 3. Generate GRU factor scores for each industry and rank them 4. Allocate portfolio weights based on GRU factor rankings **Formula**: Not explicitly provided in the report **Evaluation**: The model performs well in short cycles but faces challenges in long cycles and extreme market conditions[38][33] Model Backtesting Results - **Diffusion Index Model**: - Monthly average return: -0.81% - Excess return over equal-weighted industry benchmark: -1.61% (July 2025)[29] - Year-to-date excess return: 1.48%[24][29] - **GRU Factor Model**: - Weekly average return: -0.46% - Excess return over equal-weighted industry benchmark: -1.27% (July 2025)[36] - Year-to-date excess return: -5.75%[33][36] Quantitative Factors and Construction Methods - **Factor Name**: Diffusion Index **Construction Idea**: Measures industry momentum based on price trends[25][26] **Construction Process**: 1. Calculate the diffusion index for each industry using price data 2. Rank industries by diffusion index values 3. Select industries with the highest diffusion index values for portfolio allocation **Formula**: Not explicitly provided in the report **Evaluation**: Effective in capturing upward trends but vulnerable to reversals[25][26] - **Factor Name**: GRU Factor **Construction Idea**: Utilizes GRU deep learning networks to analyze minute-level volume and price data for industry rotation[38][33] **Construction Process**: 1. Input minute-level volume and price data into the GRU network 2. Train the model using historical data to identify industry rotation signals 3. Generate GRU factor scores for each industry and rank them 4. Allocate portfolio weights based on GRU factor rankings **Formula**: Not explicitly provided in the report **Evaluation**: Performs well in short cycles but struggles in long cycles and extreme market conditions[38][33] Factor Backtesting Results - **Diffusion Index Factor**: - Top-ranked industries (July 18, 2025): Comprehensive Finance (1.0), Comprehensive (0.998), Non-Banking Finance (0.996), Steel (0.995), Nonferrous Metals (0.994), Communication (0.993)[26][27] - Weekly changes in rankings: Consumer Services (+0.224), Food & Beverage (+0.208), National Defense (+0.091)[28] - **GRU Factor**: - Top-ranked industries (July 18, 2025): Banking (2.68), Transportation (2.42), Nonferrous Metals (-0.87), Steel (-1.92), Construction (-2.19), Coal (-2.36)[34] - Weekly changes in rankings: Building Materials (+), Banking (+), Comprehensive Finance (+)[34]

- Model Name: Diffusion Index Model; Model Construction Idea: The model is based on the principle of price momentum; Model Construction Process: The model tracks the weekly changes in the diffusion index of various industries, ranking them based on their diffusion index values. The formula used is $ \text{Diffusion Index} = \frac{\text{Number of Stocks with Positive Momentum}}{\text{Total Number of Stocks}} $; Model Evaluation: The model captures industry trends effectively but may face challenges during market reversals[5][27][28] - Model Name: GRU Factor Model; Model Construction Idea: The model utilizes GRU (Gated Recurrent Unit) deep learning networks to analyze minute-level price and volume data; Model Construction Process: The model ranks industries based on their GRU factor values, which are derived from the GRU network's analysis of trading information. The formula used is $ \text{GRU Factor} = \text{GRU Network Output} $; Model Evaluation: The model performs well in short cycles but may struggle in long cycles or extreme market conditions[6][13][33] - Diffusion Index Model, IR value 2.05%, weekly average return 0.24%, monthly excess return -1.00%, annual excess return 2.05%[25][30] - GRU Factor Model, IR value -4.52%, weekly average return 1.32%, monthly excess return 0.77%, annual excess return -4.52%[32][37] - Factor Name: GRU Industry Factor; Factor Construction Idea: The factor is derived from GRU deep learning networks analyzing minute-level trading data; Factor Construction Process: The factor values are calculated based on the GRU network's output, ranking industries accordingly. The formula used is $ \text{GRU Factor} = \text{GRU Network Output} $; Factor Evaluation: The factor captures short-term trading information effectively but may face challenges in long-term or extreme market conditions[6][13][33] - GRU Industry Factor, IR value -4.52%, weekly average return 1.32%, monthly excess return 0.77%, annual excess return -4.52%[32][37]

- The diffusion index model tracks industry rotation and has achieved an excess return of 0.37% since 2025[26][27][31] - The diffusion index ranks industries weekly based on momentum, with top industries including non-bank finance (1.0), comprehensive finance (1.0), and media (0.976)[4][28][30] - The diffusion index suggests monthly industry allocation, recommending sectors such as non-bank finance, banking, and media for June 2025[27][31] - GRU factor model focuses on industry rotation based on transaction data, achieving an excess return of -4.76% in 2025[33][36][34] - GRU factor ranks industries weekly, with top industries including textile & apparel (3.7), construction (3.34), and real estate (3.28)[5][13][34] - GRU factor suggests weekly industry allocation, recommending sectors such as real estate, transportation, and coal for the current week[36][34][33]

Quantitative Models and Construction Methods 1. Model Name: Diffusion Index Model - **Model Construction Idea**: The model is based on the principle of price momentum, aiming to capture upward trends in industry performance[27][28] - **Model Construction Process**: The diffusion index is calculated for each industry, ranking them based on their momentum. Industries with higher diffusion index values are considered to have stronger upward trends. The model selects industries with the highest diffusion index values for allocation. - Formula: Not explicitly provided in the report - **Model Evaluation**: The model has shown mixed performance over the years. It performed well in 2021 and 2022 but faced significant drawdowns in 2023 and 2024 due to market reversals and failure to adjust to cyclical changes[27] 2. Model Name: GRU Factor Model - **Model Construction Idea**: This model leverages GRU (Gated Recurrent Unit) deep learning networks to process high-frequency price and volume data, aiming to identify industry trends and generate excess returns[34][39] - **Model Construction Process**: The GRU network is trained on historical minute-level price and volume data to predict industry rankings. The model then allocates to industries with the highest GRU factor scores. - Formula: Not explicitly provided in the report - **Model Evaluation**: The model has shown strong adaptability in short-term cycles but struggles in long-term trends and extreme market conditions. It has faced challenges in capturing excess returns in 2025 due to concentrated market themes[34][39] --- Model Backtesting Results 1. Diffusion Index Model - **2025 YTD Excess Return**: 0.37%[26][31] - **June 2025 Excess Return**: 1.99%[31] - **Weekly Average Return (June 2025)**: -0.65%[31] - **Weekly Excess Return (June 2025)**: 0.79%[31] 2. GRU Factor Model - **2025 YTD Excess Return**: -3.83%[34][37] - **June 2025 Excess Return**: 0.25%[37] - **Weekly Average Return (June 2025)**: -1.18%[37] - **Weekly Excess Return (June 2025)**: 0.25%[37] --- Quantitative Factors and Construction Methods 1. Factor Name: Diffusion Index - **Factor Construction Idea**: Measures the momentum of industries by ranking them based on their upward trends[28] - **Factor Construction Process**: The diffusion index is calculated for each industry weekly. Industries are ranked based on their index values, with higher values indicating stronger momentum. - Example Values (as of June 20, 2025): - Top Industries: Comprehensive Finance (1.0), Non-Bank Finance (0.973), Banking (0.97)[28] - Bottom Industries: Coal (0.174), Food & Beverage (0.313), Oil & Gas (0.387)[28] - **Factor Evaluation**: The factor effectively captures upward trends but may underperform during market reversals[27][28] 2. Factor Name: GRU Factor - **Factor Construction Idea**: Utilizes GRU deep learning to analyze high-frequency trading data and rank industries based on predicted performance[34][39] - **Factor Construction Process**: The GRU network processes minute-level price and volume data to generate factor scores for each industry. Industries are ranked based on these scores. - Example Values (as of June 20, 2025): - Top Industries: Coal (3.48), Non-Bank Finance (3.15), Utilities (2.65)[35] - Bottom Industries: Communication (-17.95), Media (-15.45), Defense (-11.87)[35] - **Factor Evaluation**: The factor is effective in short-term trend identification but struggles with long-term stability and extreme market conditions[34][39] --- Factor Backtesting Results 1. Diffusion Index Factor - **Top Weekly Changes (June 20, 2025)**: - Oil & Gas: +0.09 - Textiles: +0.044 - Metals: +0.036[30] - **Bottom Weekly Changes (June 20, 2025)**: - Agriculture: -0.229 - Defense: -0.086 - Building Materials: -0.078[30] 2. GRU Factor - **Top Weekly Changes (June 20, 2025)**: - Non-Bank Finance: Significant increase - Consumer Services: Significant increase - Comprehensive: Significant increase[35] - **Bottom Weekly Changes (June 20, 2025)**: - Communication: Significant decrease - Electronics: Significant decrease - New Energy Equipment: Significant decrease[35]

Quantitative Models and Construction Methods Diffusion Index Model - Model Name: Diffusion Index Model - Model Construction Idea: The model monitors the critical point of future diffusion index changes to predict market trends. - Model Construction Process: - The horizontal axis represents the relative price change of stocks in the future, ranging from 1.1 to 0.9, indicating a 10% rise to a 10% fall. - The vertical axis represents the length of the review period or future days, ranging from 20 to 10 days. - Example: A value of 0.07 at the horizontal axis 0.95 and vertical axis 15 days indicates that if all stocks in the micro-cap index fall by 5% after 5 days, the diffusion index value is 0.07. - Formula: $ \text{Diffusion Index} = \frac{\text{Number of stocks rising}}{\text{Total number of stocks}} $ - Model Evaluation: The model is useful for monitoring the critical point of future diffusion index changes and predicting market trends.[6][17][40] First Threshold Method (Left-side Trading) - Model Name: First Threshold Method - Model Construction Idea: The model triggers a signal based on the first threshold value to indicate trading actions. - Model Construction Process: - The model triggered a no-position signal at the closing value of 0.9850 on May 8, 2025. - Formula: $ \text{Threshold Value} = \text{Current Index Value} $ - Model Evaluation: The model provides early signals for trading actions based on threshold values.[6][43][44] Delayed Threshold Method (Right-side Trading) - Model Name: Delayed Threshold Method - Model Construction Idea: The model triggers a signal based on the delayed threshold value to indicate trading actions. - Model Construction Process: - The model triggered a no-position signal at the closing value of 0.8975 on May 15, 2025. - Formula: $ \text{Delayed Threshold Value} = \text{Current Index Value} $ - Model Evaluation: The model provides delayed signals for trading actions based on threshold values.[6][45][47] Dual Moving Average Method (Adaptive Trading) - Model Name: Dual Moving Average Method - Model Construction Idea: The model uses dual moving averages to trigger trading signals. - Model Construction Process: - The model triggered a no-position signal at the closing value on June 11, 2025. - Formula: $ \text{Signal} = \text{Short-term Moving Average} - \text{Long-term Moving Average} $ - Model Evaluation: The model adapts to market changes using dual moving averages to provide trading signals.[6][48][49] Model Backtesting Results Diffusion Index Model - Diffusion Index Model, Current Value: 0.34[40] First Threshold Method (Left-side Trading) - First Threshold Method, Closing Value: 0.9850[43] Delayed Threshold Method (Right-side Trading) - Delayed Threshold Method, Closing Value: 0.8975[47] Dual Moving Average Method (Adaptive Trading) - Dual Moving Average Method, Closing Value: Not specified[48] Quantitative Factors and Construction Methods Past Year Volatility Factor - Factor Name: Past Year Volatility Factor - Factor Construction Idea: The factor measures the volatility of stocks over the past year. - Factor Construction Process: - Formula: $ \text{Volatility} = \sqrt{\frac{\sum (R_i - \bar{R})^2}{N}} $ - This week's rank IC: 0.171, Historical average: -0.033 - Factor Evaluation: The factor is effective in capturing the volatility of stocks over the past year.[5][16][33] Beta Factor - Factor Name: Beta Factor - Factor Construction Idea: The factor measures the sensitivity of stocks to market movements. - Factor Construction Process: - Formula: $ \beta = \frac{\text{Cov}(R_i, R_m)}{\text{Var}(R_m)} $ - This week's rank IC: 0.145, Historical average: 0.004 - Factor Evaluation: The factor is effective in capturing the sensitivity of stocks to market movements.[5][16][33] Logarithmic Market Value Factor - Factor Name: Logarithmic Market Value Factor - Factor Construction Idea: The factor measures the logarithmic market value of stocks. - Factor Construction Process: - Formula: $ \text{Log Market Value} = \log(\text{Market Value}) $ - This week's rank IC: 0.138, Historical average: -0.033 - Factor Evaluation: The factor is effective in capturing the logarithmic market value of stocks.[5][16][33] Nonlinear Market Value Factor - Factor Name: Nonlinear Market Value Factor - Factor Construction Idea: The factor measures the nonlinear market value of stocks. - Factor Construction Process: - Formula: $ \text{Nonlinear Market Value} = (\text{Market Value})^2 $ - This week's rank IC: 0.138, Historical average: -0.033 - Factor Evaluation: The factor is effective in capturing the nonlinear market value of stocks.[5][16][33] Non-liquidity Factor - Factor Name: Non-liquidity Factor - Factor Construction Idea: The factor measures the non-liquidity of stocks. - Factor Construction Process: - Formula: $ \text{Non-liquidity} = \frac{\text{Number of non-trading days}}{\text{Total number of days}} $ - This week's rank IC: 0.125, Historical average: 0.038 - Factor Evaluation: The factor is effective in capturing the non-liquidity of stocks.[5][16][33] Factor Backtesting Results Past Year Volatility Factor - Past Year Volatility Factor, This week's rank IC: 0.171, Historical average: -0.033[5][16][33] Beta Factor - Beta Factor, This week's rank IC: 0.145, Historical average: 0.004[5][16][33] Logarithmic Market Value Factor - Logarithmic Market Value Factor, This week's rank IC: 0.138, Historical average: -0.033[5][16][33] Nonlinear Market Value Factor - Nonlinear Market Value Factor, This week's rank IC: 0.138, Historical average: -0.033[5][16][33] Non-liquidity Factor - Non-liquidity Factor, This week's rank IC: 0.125, Historical average: 0.038[5][16][33]

Quantitative Models and Construction Diffusion Index Model - **Model Name**: Diffusion Index Model [6][26] - **Model Construction Idea**: The model is based on the principle of price momentum, aiming to capture upward trends in industry performance. It selects industries with positive momentum for rotation. [26] - **Model Construction Process**: - The model calculates a diffusion index for each industry, which reflects the proportion of stocks within the industry exhibiting upward momentum. - Industries are ranked based on their diffusion index values, and the top industries are selected for portfolio allocation. [6][27] - **Model Evaluation**: The model has shown strong performance in capturing trends during momentum-driven markets but struggles during market reversals or when trends shift to mean-reversion. [26] - **Testing Results**: - 2025 YTD excess return: -0.44% [25][30] - June 2025 excess return: 1.20% [30] - Weekly average return: 0.21%, excess return over equal-weighted industry index: 0.37% [30] GRU Factor Model - **Model Name**: GRU Factor Model [7][32] - **Model Construction Idea**: This model leverages GRU (Gated Recurrent Unit) deep learning networks to process high-frequency price and volume data, aiming to identify industry rotation opportunities. [37] - **Model Construction Process**: - The model uses minute-level price and volume data as input features. - A GRU neural network is trained to predict industry factor scores, which are then used to rank industries for rotation. [37] - **Model Evaluation**: The model performs well in short-term trading environments but faces challenges in long-term trend-following scenarios, especially during extreme market conditions. [37] - **Testing Results**: - 2025 YTD excess return: -4.13% [32][35] - June 2025 excess return: 0.00% [35] - Weekly average return: 0.42%, excess return over equal-weighted industry index: 0.58% [35] --- Backtesting Results of Models Diffusion Index Model - **YTD Excess Return**: -0.44% [25][30] - **June 2025 Excess Return**: 1.20% [30] - **Weekly Average Return**: 0.21% [30] - **Weekly Excess Return**: 0.37% [30] GRU Factor Model - **YTD Excess Return**: -4.13% [32][35] - **June 2025 Excess Return**: 0.00% [35] - **Weekly Average Return**: 0.42% [35] - **Weekly Excess Return**: 0.58% [35] --- Quantitative Factors and Construction GRU Industry Factor - **Factor Name**: GRU Industry Factor [7][33] - **Factor Construction Idea**: The factor is derived from GRU neural network outputs, representing the relative attractiveness of industries based on high-frequency trading data. [37] - **Factor Construction Process**: - The GRU model processes minute-level trading data to generate factor scores for each industry. - Industries are ranked based on their factor scores, and the top industries are selected for portfolio allocation. [37] - **Factor Evaluation**: The factor effectively captures short-term trading signals but may underperform in broader market trends or during periods of concentrated market themes. [37] - **Testing Results**: - Top industries by factor score (as of June 13, 2025): Steel (2.42), Construction (1.47), Transportation (0.85), Real Estate (0.59), Utilities (-0.01), Oil & Gas (-1.52) [7][33] - Bottom industries by factor score: Food & Beverage (-49.88), Comprehensive Finance (-33.65), Consumer Services (-25.42), Media (-21.94), Automotive (-20.34), Non-Banking Finance (-18.36) [33] Diffusion Index Factor - **Factor Name**: Diffusion Index Factor [6][27] - **Factor Construction Idea**: The factor measures the proportion of stocks within an industry showing upward momentum, serving as a proxy for industry strength. [6] - **Factor Construction Process**: - Calculate the diffusion index for each industry based on the percentage of stocks with positive momentum. - Rank industries by their diffusion index values to identify the strongest performers. [6][27] - **Factor Evaluation**: The factor is effective in identifying momentum-driven industries but may lag during market reversals. [26] - **Testing Results**: - Top industries by diffusion index (as of June 13, 2025): Comprehensive Finance (1.0), Non-Banking Finance (0.997), Banking (0.97), Media (0.953), Computing (0.936), Retail (0.93) [6][27] - Bottom industries by diffusion index: Coal (0.166), Oil & Gas (0.297), Food & Beverage (0.323), Utilities (0.604), Real Estate (0.629), Building Materials (0.657) [27] --- Backtesting Results of Factors GRU Industry Factor - **Top Industries by Factor Score**: Steel (2.42), Construction (1.47), Transportation (0.85), Real Estate (0.59), Utilities (-0.01), Oil & Gas (-1.52) [7][33] - **Bottom Industries by Factor Score**: Food & Beverage (-49.88), Comprehensive Finance (-33.65), Consumer Services (-25.42), Media (-21.94), Automotive (-20.34), Non-Banking Finance (-18.36) [33] Diffusion Index Factor - **Top Industries by Diffusion Index**: Comprehensive Finance (1.0), Non-Banking Finance (0.997), Banking (0.97), Media (0.953), Computing (0.936), Retail (0.93) [6][27] - **Bottom Industries by Diffusion Index**: Coal (0.166), Oil & Gas (0.297), Food & Beverage (0.323), Utilities (0.604), Real Estate (0.629), Building Materials (0.657) [27]

Quantitative Models and Construction Diffusion Index Model - **Model Name**: Diffusion Index Model - **Model Construction Idea**: The model is used to monitor the critical points of future diffusion index changes, predicting potential turning points in the market[6][43] - **Model Construction Process**: - The horizontal axis represents the relative price change of stocks in the micro-cap index components over a future period, ranging from +10% to -10% - The vertical axis represents the length of the review or forecast window, ranging from 20 days to 10 days - For example, a value of 0.16 at the intersection of a -5% price change (horizontal axis) and a 15-day window (vertical axis) indicates the diffusion index value under these conditions - The model uses historical data to calculate the diffusion index for different scenarios and predicts the likelihood of market turning points based on these values[43][45] - **Model Evaluation**: The model provides a systematic way to identify potential market turning points, but its accuracy depends on the stability of the index components and market conditions[6][43] - **Model Testing Results**: - Current diffusion index value: 0.91 - Historical signals: - Left-side threshold method triggered a sell signal on May 8, 2025, with a value of 0.9850[47] - Right-side threshold method triggered a sell signal on May 15, 2025, with a value of 0.8975[51] - Dual moving average method triggered a buy signal on April 30, 2025[52] --- Quantitative Factors and Construction Leverage Factor - **Factor Name**: Leverage Factor - **Factor Construction Idea**: Measures the financial leverage of companies, indicating their risk and potential return[5][38] - **Factor Construction Process**: Calculated as the ratio of total debt to equity or assets, normalized for comparison across companies[5][38] - **Factor Evaluation**: Demonstrated strong performance in the current week, with a rank IC of 0.143, significantly above its historical average of -0.006[5][38] Turnover Factor - **Factor Name**: Turnover Factor - **Factor Construction Idea**: Reflects the liquidity of stocks, with higher turnover indicating more active trading[5][38] - **Factor Construction Process**: Calculated as the ratio of trading volume to free float market capitalization over a specific period[5][38] - **Factor Evaluation**: Rank IC of 0.051 this week, outperforming its historical average of -0.08[5][38] PB Inverse Factor - **Factor Name**: PB Inverse Factor - **Factor Construction Idea**: Represents the inverse of the price-to-book ratio, identifying undervalued stocks[5][38] - **Factor Construction Process**: Calculated as 1 divided by the price-to-book ratio, normalized for comparison[5][38] - **Factor Evaluation**: Rank IC of 0.042 this week, slightly above its historical average of 0.034[5][38] Free Float Ratio Factor - **Factor Name**: Free Float Ratio Factor - **Factor Construction Idea**: Measures the proportion of shares available for public trading, indicating potential liquidity[5][38] - **Factor Construction Process**: Calculated as the ratio of free float shares to total shares outstanding[5][38] - **Factor Evaluation**: Rank IC of 0.04 this week, outperforming its historical average of -0.012[5][38] 10-Day Return Factor - **Factor Name**: 10-Day Return Factor - **Factor Construction Idea**: Captures short-term momentum by analyzing recent stock performance[5][38] - **Factor Construction Process**: Calculated as the percentage change in stock price over the past 10 trading days[5][38] - **Factor Evaluation**: Rank IC of 0.025 this week, significantly above its historical average of -0.061[5][38] Non-Adjusted Stock Price Factor - **Factor Name**: Non-Adjusted Stock Price Factor - **Factor Construction Idea**: Reflects the raw stock price without adjustments for splits or dividends[5][38] - **Factor Construction Process**: Directly uses the stock's current market price[5][38] - **Factor Evaluation**: Rank IC of -0.19 this week, underperforming its historical average of -0.017[5][38] PE_TTM Inverse Factor - **Factor Name**: PE_TTM Inverse Factor - **Factor Construction Idea**: Represents the inverse of the price-to-earnings ratio based on trailing twelve months, identifying undervalued stocks[5][38] - **Factor Construction Process**: Calculated as 1 divided by the PE_TTM ratio, normalized for comparison[5][38] - **Factor Evaluation**: Rank IC of -0.143 this week, underperforming its historical average of 0.018[5][38] ROE (Single Quarter) Factor - **Factor Name**: ROE (Single Quarter) Factor - **Factor Construction Idea**: Measures the profitability of companies based on their return on equity for a single quarter[5][38] - **Factor Construction Process**: Calculated as net income divided by shareholders' equity for the most recent quarter[5][38] - **Factor Evaluation**: Rank IC of -0.124 this week, underperforming its historical average of 0.023[5][38] Nonlinear Market Cap Factor - **Factor Name**: Nonlinear Market Cap Factor - **Factor Construction Idea**: Captures the nonlinear relationship between market capitalization and stock performance[5][38] - **Factor Construction Process**: Applies a nonlinear transformation to market capitalization data, such as logarithmic or polynomial adjustments[5][38] - **Factor Evaluation**: Rank IC of -0.116 this week, underperforming its historical average of -0.033[5][38] Log Market Cap Factor - **Factor Name**: Log Market Cap Factor - **Factor Construction Idea**: Measures the logarithmic transformation of market capitalization to reduce skewness[5][38] - **Factor Construction Process**: Calculated as the natural logarithm of market capitalization[5][38] - **Factor Evaluation**: Rank IC of -0.116 this week, underperforming its historical average of -0.033[5][38] --- Factor Backtesting Results - **Leverage Factor**: Rank IC 0.143[5][38] - **Turnover Factor**: Rank IC 0.051[5][38] - **PB Inverse Factor**: Rank IC 0.042[5][38] - **Free Float Ratio Factor**: Rank IC 0.04[5][38] - **10-Day Return Factor**: Rank IC 0.025[5][38] - **Non-Adjusted Stock Price Factor**: Rank IC -0.19[5][38] - **PE_TTM Inverse Factor**: Rank IC -0.143[5][38] - **ROE (Single Quarter) Factor**: Rank IC -0.124[5][38] - **Nonlinear Market Cap Factor**: Rank IC -0.116[5][38] - **Log Market Cap Factor**: Rank IC -0.116[5][38]

- Model Name: Diffusion Index Model; Model Construction Idea: The model is based on the observation of industry diffusion indices; Detailed Construction Process: The model tracks the weekly changes in diffusion indices for various industries, ranking them based on their performance. The formula used is $ \text{Diffusion Index} = \frac{\text{Number of Advancing Stocks}}{\text{Total Number of Stocks}} $; Model Evaluation: The model has shown varying performance over the years, with significant returns in some periods and notable drawdowns in others[6][14][27] - Model Name: GRU Factor Model; Model Construction Idea: The model utilizes GRU (Gated Recurrent Unit) deep learning networks to analyze minute-level price and volume data; Detailed Construction Process: The model ranks industries based on GRU factor scores, which are derived from the GRU network's analysis of trading data. The formula used is $ \text{GRU Factor Score} = \text{GRU Network Output} $; Model Evaluation: The model has achieved substantial excess returns by capturing trading information, though it has faced challenges in certain market conditions[7][14][34] Model Backtest Results - Diffusion Index Model, Average Weekly Return: 0.72%, Excess Return: 0.11%, Year-to-Date Excess Return: -2.26%[32] - GRU Factor Model, Average Weekly Return: 1.07%, Excess Return: 0.44%, Year-to-Date Excess Return: -3.71%[37] Factor Construction and Evaluation - Factor Name: GRU Industry Factor; Factor Construction Idea: The factor is constructed using GRU deep learning networks to analyze minute-level trading data; Detailed Construction Process: The factor scores are calculated based on the GRU network's output, which evaluates the trading data to rank industries. The formula used is $ \text{GRU Factor Score} = \text{GRU Network Output} $; Factor Evaluation: The factor has shown significant improvements in certain industries, indicating its effectiveness in capturing trading information[7][14][35] Factor Backtest Results - GRU Industry Factor, Top Industries: Automotive (2.84), Steel (1.85), Media (1.48), Power Equipment and New Energy (1.35), Communication (0.88), Coal (0.66)[7][14][35]

Quantitative Models and Construction 1. Model Name: Diffusion Index Model - **Model Construction Idea**: The model is based on the principle of price momentum, aiming to capture upward trends in industry performance[28][38] - **Model Construction Process**: The model calculates the diffusion index for each industry, ranking them based on their relative performance. Industries with higher diffusion indices are recommended for allocation. The model tracks weekly and monthly changes in the diffusion index to adjust allocations dynamically[5][14][29] - **Model Evaluation**: The model has shown strong performance in capturing momentum trends during upward markets but may underperform during market reversals[28][38] 2. Model Name: GRU Factor Model - **Model Construction Idea**: This model leverages GRU (Gated Recurrent Unit) deep learning networks to process high-frequency volume and price data, aiming to identify industry rotation opportunities[39] - **Model Construction Process**: The GRU network is trained on historical minute-level data to predict industry factor rankings. The model dynamically adjusts allocations based on the predicted rankings, focusing on industries with higher GRU factor scores[6][34][39] - **Model Evaluation**: The model performs well in short-term scenarios due to its adaptability but may face challenges in long-term or extreme market conditions[39] --- Backtesting Results of Models 1. Diffusion Index Model - **2025 YTD Excess Return**: -2.75%[27][32] - **April 2025 Excess Return**: -0.68%[32] - **Weekly Portfolio Return**: -0.18%[32] 2. GRU Factor Model - **2025 YTD Excess Return**: -3.54%[34][37] - **April 2025 Excess Return**: 0.68%[37] - **Weekly Portfolio Return**: -0.78%[37] --- Quantitative Factors and Construction 1. Factor Name: Diffusion Index - **Factor Construction Idea**: Measures the breadth of industry performance to identify upward trends[5][14] - **Factor Construction Process**: The diffusion index is calculated as the proportion of stocks in an industry with positive momentum. Weekly and monthly changes in the index are tracked to adjust rankings dynamically[5][14][29] - **Factor Evaluation**: Effective in capturing momentum trends but sensitive to market reversals[28][38] 2. Factor Name: GRU Industry Factor - **Factor Construction Idea**: Utilizes GRU deep learning to analyze high-frequency trading data and predict industry rankings[39] - **Factor Construction Process**: The GRU network processes minute-level volume and price data to generate factor scores for industries. Industries with higher scores are prioritized for allocation[6][34][39] - **Factor Evaluation**: Strong adaptability in short-term scenarios but limited in long-term or extreme market conditions[39] --- Backtesting Results of Factors 1. Diffusion Index Factor - **Top 6 Industries (as of April 30, 2025)**: Banking (0.988), Non-Banking Financials (0.94), Comprehensive Financials (0.928), Computers (0.884), Retail (0.88), Automobiles (0.872)[5][14][29] - **Weekly Change Leaders**: Steel (0.17), Comprehensive (0.095), Automobiles (0.065)[5][31] 2. GRU Industry Factor - **Top 6 Industries (as of April 30, 2025)**: Real Estate (4.62), Textiles & Apparel (4.14), Comprehensive Financials (2.89), Transportation (1.71), Light Manufacturing (1.7), Construction (1.41)[6][35] - **Weekly Change Leaders**: Pharmaceuticals, Real Estate, Comprehensive Financials[6][35]