Quantitative Models and Construction Methods Model Name: Quantitative Alpha Model - **Model Construction Idea**: The model uses price and volume, high-frequency alpha factors as signals to calculate the overall score of each index[13] - **Model Construction Process**: - The model calculates the scores based on factors such as incremental funds entering the market (amt_mustd3m/turn_utd), intraday trading (tcv_intra), and interday stability - trading depth improvement (mom_mdr3m)[17] - Formula: $ \text{Score} = \text{amt_mustd3m/turn_utd} + \text{tcv_intra} + \text{mom_mdr3m} $ - The parameters represent the following: - amt_mustd3m/turn_utd: Incremental funds entering the market - tcv_intra: Intraday trading - mom_mdr3m: Interday stability - trading depth improvement - **Model Evaluation**: The model's internal selection has been pointing towards micro-cap stocks since September 2024, indicating a preference for micro-cap stocks[13][17] Model Name: Non-linear Market Cap Model - **Model Construction Idea**: The model evaluates the impact of non-linear market cap fluctuations on manager excess returns[20] - **Model Construction Process**: - The model calculates the average distance of scatter points from the origin during significant non-linear market cap fluctuations[20] - Formula: $ \text{Average Distance} = \frac{\sum \text{Distance from Origin}}{\text{Number of Points}} $ - The parameters represent the following: - Distance from Origin: The distance of each scatter point from the origin during non-linear market cap fluctuations - **Model Evaluation**: The model shows that managers' excess returns are significantly influenced by non-linear market cap fluctuations, with the average distance from the origin increasing from 0.84 in 2023 to 1.49 in 2024 and 1.19 in 2025[20][30] Model Name: Linear Market Cap Model - **Model Construction Idea**: The model evaluates the impact of linear market cap fluctuations on manager excess returns[26] - **Model Construction Process**: - The model calculates the average distance of scatter points from the origin during significant linear market cap fluctuations[26] - Formula: $ \text{Average Distance} = \frac{\sum \text{Distance from Origin}}{\text{Number of Points}} $ - The parameters represent the following: - Distance from Origin: The distance of each scatter point from the origin during linear market cap fluctuations - **Model Evaluation**: The model shows that managers' excess returns are influenced by linear market cap fluctuations, with the average distance from the origin increasing from 0.69 in 2023 to 1.05 in 2024 and 0.96 in 2025[26][32] Model Backtest Results Quantitative Alpha Model - **IR**: 0.55[17] - **Excess Return**: 1.9%[28] Non-linear Market Cap Model - **IR**: 1.19[30] - **Excess Return**: 1.9%[28] Linear Market Cap Model - **IR**: 0.96[32] - **Excess Return**: 0.08%[28] Quantitative Factors and Construction Methods Factor Name: Incremental Funds Entering the Market (amt_mustd3m/turn_utd) - **Factor Construction Idea**: Measures the amount of new funds entering the market[17] - **Factor Construction Process**: - Formula: $ \text{amt_mustd3m/turn_utd} $ - The parameters represent the following: - amt_mustd3m: Amount of new funds entering the market - turn_utd: Market turnover - **Factor Evaluation**: Indicates the improvement in the trading environment for micro-cap stocks[17] Factor Name: Intraday Trading (tcv_intra) - **Factor Construction Idea**: Measures the intensity of intraday trading[17] - **Factor Construction Process**: - Formula: $ \text{tcv_intra} $ - The parameters represent the following: - tcv_intra: Intraday trading volume - **Factor Evaluation**: Indicates the improvement in the trading environment for micro-cap stocks[17] Factor Name: Interday Stability - Trading Depth Improvement (mom_mdr3m) - **Factor Construction Idea**: Measures the stability and depth of trading over multiple days[17] - **Factor Construction Process**: - Formula: $ \text{mom_mdr3m} $ - The parameters represent the following: - mom_mdr3m: Momentum and trading depth over three months - **Factor Evaluation**: Indicates the improvement in the trading environment for micro-cap stocks[17] Factor Backtest Results Incremental Funds Entering the Market (amt_mustd3m/turn_utd) - **IR**: 0.55[17] - **Excess Return**: 1.9%[28] Intraday Trading (tcv_intra) - **IR**: 0.55[17] - **Excess Return**: 1.9%[28] Interday Stability - Trading Depth Improvement (mom_mdr3m) - **IR**: 0.55[17] - **Excess Return**: 1.9%[28]