Quantitative Models and Construction Methods 1. Model Name: Coal Industry Profit Forecast Model - **Model Construction Idea**: The model estimates monthly revenue and profit growth rates for the coal industry based on changes in price and capacity factors[10][15] - **Model Construction Process**: 1. The pricing mechanism is determined by the last price index of the previous month, which sets the sales price for the next month[10] 2. The model uses year-on-year changes in price factors and capacity factors to estimate revenue and profit growth rates on a monthly basis[10] - **Model Evaluation**: The model provides a systematic approach to track and predict industry profitability trends, but it is sensitive to price fluctuations and external shocks[15] 2. Model Name: Hog Supply-Demand Gap Estimation Model - **Model Construction Idea**: This model predicts the supply-demand gap for hogs six months in advance based on the relationship between sow inventory and hog slaughter rates[16][17] - **Model Construction Process**: 1. The model assumes a stable proportional relationship between quarterly hog slaughter and sow inventory lagged by six months[16] 2. The formula for the slaughter coefficient is: $ \text{Slaughter Coefficient} = \frac{\text{Quarterly Hog Slaughter}}{\text{Sow Inventory (Lagged 6 Months)}} $[16] 3. The potential supply six months later is calculated as: $ \text{Potential Supply (t+6)} = \text{Sow Inventory (t)} \times \text{Slaughter Coefficient (t+6)} $[17] 4. The potential demand six months later is estimated using historical quarterly slaughter data[17] - **Model Evaluation**: The model effectively identifies hog price cycles but relies heavily on the accuracy of historical slaughter coefficients[17] 3. Model Name: Steel Industry Profit Forecast Model - **Model Construction Idea**: The model predicts monthly profit growth and per-ton profitability for the steel industry by integrating steel prices and raw material costs[19] - **Model Construction Process**: 1. The model incorporates comprehensive steel prices and costs of raw materials such as iron ore, coke, pulverized coal, and scrap steel[19] 2. Monthly profit growth rates and per-ton profitability are calculated based on these inputs[19] - **Model Evaluation**: The model provides a detailed view of profitability trends but may not fully capture external demand-side factors[23] 4. Model Name: Glass and Cement Industry Profitability Tracking Model - **Model Construction Idea**: This model tracks profitability changes in the glass and cement industries using price and cost indicators, and generates allocation signals based on these changes[25] - **Model Construction Process**: 1. The model monitors price and cost indicators to assess profitability trends[25] 2. It incorporates manufacturing PMI and real estate sales data to evaluate macroeconomic impacts on industry expectations[25] - **Model Evaluation**: The model is useful for identifying short-term profitability trends but may be limited by the lag in macroeconomic data updates[26] 5. Model Name: Refining and Oilfield Services Profitability Model - **Model Construction Idea**: This model estimates profit growth and cracking spreads for the refining industry based on changes in fuel prices, crude oil prices, and new drilling activity[27] - **Model Construction Process**: 1. The model calculates profit growth rates using changes in fuel and crude oil prices[27] 2. Cracking spreads are derived from the difference between product prices and raw material costs[27] 3. Allocation signals are generated based on oil price trends and drilling activity[27] - **Model Evaluation**: The model captures key profitability drivers but may not fully account for geopolitical risks affecting oil prices[34][35] --- Backtesting Results of Models 1. Coal Industry Profit Forecast Model - **Excess Return**: The coal industry underperformed the Wind All-A Index by -9.8% in August 2025[10] 2. Hog Supply-Demand Gap Estimation Model - **Supply-Demand Balance**: The potential supply for Q1 2026 is estimated at 19,380 million heads, while the demand is forecasted at 19,476 million heads, indicating a slightly tight balance[18] 3. Steel Industry Profit Forecast Model - **Profit Growth**: The steel industry is predicted to achieve positive year-on-year profit growth in August 2025[23] 4. Glass and Cement Industry Profitability Tracking Model - **Glass Industry**: Profit margins continued to decline year-on-year in August 2025, but the rate of decline narrowed[26] - **Cement Industry**: Profitability slightly declined year-on-year in August 2025[26] 5. Refining and Oilfield Services Profitability Model - **Refining Industry**: Profit growth for August 2025 is predicted to be positive[28] - **Oilfield Services**: Oil prices in August 2025 were lower than the previous year, and drilling activity remained stable, leading to a neutral allocation signal[35]