Quantitative Factors and Construction Methods 1. Factor Name: Market Style Factor - **Construction Idea**: This factor tracks the market's preference for different styles, such as large-cap vs. small-cap and value vs. growth, as well as the volatility of these styles[13][15] - **Construction Process**: - **Size Style**: Measure the relative performance of small-cap stocks against large-cap stocks - **Value-Growth Style**: Measure the relative performance of growth stocks against value stocks - **Volatility**: Calculate the changes in the above style preferences over time to assess their stability[13][15] - **Evaluation**: The factor effectively captures the market's shifting preferences and provides insights into style rotations[13][15] 2. Factor Name: Market Structure Factor - **Construction Idea**: This factor evaluates the dispersion and rotation within industry indices, as well as the concentration of trading activity[13][15] - **Construction Process**: - **Industry Dispersion**: Calculate the excess return dispersion across industry indices - **Industry Rotation**: Measure the speed of rotation among industries - **Trading Concentration**: Assess the proportion of trading volume concentrated in the top 100 stocks and the top 5 industries[13][15] - **Evaluation**: The factor provides a comprehensive view of market dynamics, including sectoral shifts and trading behavior[13][15] 3. Factor Name: Market Activity Factor - **Construction Idea**: This factor tracks the overall market activity through volatility and turnover rates[14][15] - **Construction Process**: - **Volatility**: Measure the index-level volatility over the observation period - **Turnover Rate**: Calculate the turnover rate of the market index to gauge trading activity[14][15] - **Evaluation**: The factor is useful for understanding the market's risk appetite and liquidity conditions[14][15] 4. Factor Name: Commodity Market Factor - **Construction Idea**: This factor evaluates the performance and dynamics of commodity markets, focusing on trend strength, basis momentum, volatility, and liquidity[21][26] - **Construction Process**: - **Trend Strength**: Assess the strength of price trends in commodity sectors like metals and energy - **Basis Momentum**: Measure the changes in the basis (spot price vs. futures price) across sectors - **Volatility**: Calculate the price volatility for each commodity sector - **Liquidity**: Evaluate the trading liquidity and its fluctuations across sectors[21][26] - **Evaluation**: The factor provides a detailed view of commodity market conditions, highlighting sector-specific trends and risks[21][26] 5. Factor Name: Option Market Factor - **Construction Idea**: This factor analyzes the implied volatility and skewness in the options market, focusing on indices like SSE 50 and CSI 1000[30] - **Construction Process**: - **Implied Volatility**: Track the implied volatility levels for SSE 50 and CSI 1000 options - **Skewness**: Measure the skewness in the implied volatility distribution to assess market sentiment[30] - **Evaluation**: The factor captures market sentiment and risk perception, particularly in large-cap and small-cap indices[30] 6. Factor Name: Convertible Bond Market Factor - **Construction Idea**: This factor evaluates the performance and valuation of the convertible bond market, focusing on premium rates and trading activity[33] - **Construction Process**: - **Premium Rates**: Analyze the parity premium and low-premium bond proportions - **Trading Activity**: Measure the total trading volume and its changes over time[33] - **Evaluation**: The factor provides insights into the convertible bond market's valuation and liquidity conditions[33] --- Factor Backtesting Results 1. Market Style Factor - **Size Style**: Small-cap preference increased - **Value-Growth Style**: Growth style outperformed value - **Volatility**: Size style volatility increased, while value-growth style volatility decreased[15] 2. Market Structure Factor - **Industry Dispersion**: Increased - **Industry Rotation**: Accelerated - **Trading Concentration**: Top 100 stocks' trading share rose, while top 5 industries' share remained stable[15] 3. Market Activity Factor - **Volatility**: Increased - **Turnover Rate**: Increased[15] 4. Commodity Market Factor - **Trend Strength**: Metals and energy sectors strengthened - **Basis Momentum**: Declined across all sectors - **Volatility**: Declined in the black sector, stable in others - **Liquidity**: Fluctuated but remained stable overall[26] 5. Option Market Factor - **Implied Volatility**: SSE 50 remained stable, CSI 1000 declined - **Skewness**: CSI 1000 skewness and implied volatility recovered quickly[30] 6. Convertible Bond Market Factor - **Premium Rates**: Parity premium remained stable, low-premium bond proportion unchanged - **Trading Activity**: Slight decline in trading volume, but still supported[33]

Quantitative Factors and Construction 1. Factor Name: Market Style Factor - **Construction Idea**: This factor tracks the relative performance and volatility of different market styles, such as large-cap vs. small-cap and value vs. growth styles, to understand market preferences and dynamics[10][12] - **Construction Process**: - **Style Performance**: Measure the relative returns of large-cap vs. small-cap stocks and value vs. growth stocks over the week - **Style Volatility**: Calculate the weekly changes in the volatility of these style returns - **Evaluation**: The factor effectively captures the market's preference for growth over value and the balanced performance between large-cap and small-cap stocks during the observed period[10][12] 2. Factor Name: Market Structure Factor - **Construction Idea**: This factor evaluates the dispersion of industry returns, the speed of industry rotation, and the concentration of trading activity to assess market structure and dynamics[10][12] - **Construction Process**: - **Industry Return Dispersion**: Compute the standard deviation of excess returns across industry indices - **Industry Rotation Speed**: Measure the rate of change in leading industries over the week - **Trading Concentration**: Calculate the proportion of total trading volume contributed by the top 100 stocks and the top 5 industries - **Evaluation**: The factor highlights an increase in industry return dispersion and trading concentration, indicating a more focused market structure[10][12] 3. Factor Name: Market Activity Factor - **Construction Idea**: This factor tracks market volatility and turnover rates to gauge overall market activity levels[11][12] - **Construction Process**: - **Volatility**: Measure the weekly changes in index-level volatility - **Turnover Rate**: Calculate the weekly changes in market turnover rates - **Evaluation**: The factor shows a rise in both market volatility and turnover, reflecting heightened market activity during the week[11][12] 4. Factor Name: Commodity Market Factor - **Construction Idea**: This factor monitors the strength of trends, basis momentum, volatility, and liquidity in commodity markets to understand their dynamics[19][25] - **Construction Process**: - **Trend Strength**: Assess the directional movement of commodity indices - **Basis Momentum**: Measure the changes in the basis (spot price vs. futures price) for energy and precious metals - **Volatility**: Calculate the weekly changes in commodity price volatility - **Liquidity**: Track the weekly changes in trading volume and bid-ask spreads - **Evaluation**: The factor indicates a decline in trend strength and volatility, while basis momentum for energy and precious metals increased, and liquidity showed a downward trend[19][25] 5. Factor Name: Option Market Factor - **Construction Idea**: This factor evaluates implied volatility, skewness, and discount rates in the options market to assess market sentiment and hedging activity[28] - **Construction Process**: - **Implied Volatility**: Track the implied volatility levels of the SSE 50 and CSI 1000 indices - **Skewness and Discount Rates**: Measure the skewness of put options and the implied discount rates for these indices - **Evaluation**: The factor reveals high implied volatility levels, with an increase in put skewness and discount rates for the CSI 1000 index, suggesting rising hedging activity and market divergence[28] 6. Factor Name: Convertible Bond Market Factor - **Construction Idea**: This factor examines the premium rates and trading activity in the convertible bond market to understand its dynamics[30] - **Construction Process**: - **Premium Rates**: Analyze the average premium rates for bonds with low conversion premiums - **Trading Activity**: Measure the weekly changes in trading volume - **Evaluation**: The factor shows an increase in the proportion of low-premium bonds and stable trading activity, indicating potential short-term adjustments in the market[30] --- Factor Backtesting Results 1. Market Style Factor - **Large-Cap vs. Small-Cap Performance**: Balanced[10][12] - **Value vs. Growth Performance**: Growth outperformed value[10][12] - **Style Volatility**: Large-cap/small-cap volatility decreased; value/growth volatility increased[10][12] 2. Market Structure Factor - **Industry Return Dispersion**: Increased[10][12] - **Industry Rotation Speed**: Peaked and then declined[10][12] - **Trading Concentration**: Increased for both top 100 stocks and top 5 industries[10][12] 3. Market Activity Factor - **Volatility**: Increased[11][12] - **Turnover Rate**: Increased[11][12] 4. Commodity Market Factor - **Trend Strength**: Declined[19][25] - **Basis Momentum**: Increased for energy and precious metals[19][25] - **Volatility**: Declined[19][25] - **Liquidity**: Declined[19][25] 5. Option Market Factor - **Implied Volatility**: High for SSE 50 and CSI 1000[28] - **Skewness and Discount Rates**: Increased for CSI 1000[28] 6. Convertible Bond Market Factor - **Premium Rates**: Low-premium bonds increased[30] - **Trading Activity**: Stable[30]