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] - **Model Construction Process**: 1. The pricing mechanism is determined by the long-term contract system, where the sales price for the next month is based on the last price index of the current month[10] 2. The model incorporates year-over-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 relies heavily on the accuracy of price and capacity factor inputs[10][14] 2. Model Name: Hog Supply-Demand Gap Estimation Model - **Model Construction Idea**: The model predicts the supply-demand gap for hogs six months in advance based on the relationship between sow inventory and hog slaughter rates[15] - **Model Construction Process**: 1. The model assumes a stable proportional relationship between quarterly hog slaughter and sow inventory lagged by six months[15] 2. The formula for the slaughter coefficient is: $ \text{Slaughter Coefficient} = \frac{\text{Quarterly Hog Slaughter}}{\text{Sow Inventory (Lagged 6 Months)}} $[15] 3. The potential supply and demand six months later are calculated as: $ \text{Potential Supply (t+6)} = \text{Sow Inventory (t)} \times \text{Slaughter Coefficient (t+6)} $ $ \text{Potential Demand (t+6)} = \text{Hog Slaughter (t+6, Previous Year)} $[16] - **Model Evaluation**: Historical data shows that this model effectively identifies hog price upcycles, making it a valuable tool for forecasting[16] 3. Model Name: Steel Industry Profit Forecast Model - **Model Construction Idea**: The model predicts monthly profit growth rates and per-ton profitability for the steel industry by integrating steel prices and raw material costs[18] - **Model Construction Process**: 1. The model uses comprehensive steel prices and considers the costs of raw materials such as iron ore, coke, pulverized coal, and scrap steel[18] 2. Monthly profit growth rates and per-ton profitability are calculated based on these inputs[18] - **Model Evaluation**: The model captures the dynamics of the steel industry effectively, but its accuracy depends on the reliability of input data[23] 4. Model Name: Glass and Cement Industry Profitability Tracking Model - **Model Construction Idea**: The model tracks profitability changes in the glass and cement industries using price and cost indicators, and designs allocation signals based on these changes[25] - **Model Construction Process**: 1. The model monitors price and cost indicators to assess profitability trends in the glass and cement industries[25] 2. It incorporates economic data such as manufacturing PMI and real estate sales to analyze potential infrastructure investment expectations[25] - **Model Evaluation**: The model provides a comprehensive view of industry profitability and its drivers, but it is sensitive to macroeconomic fluctuations[29] 5. Model Name: Refining and Oilfield Services Profitability Model - **Model Construction Idea**: The model estimates profit growth rates and cracking spreads for the refining industry based on changes in fuel prices and crude oil prices[30] - **Model Construction Process**: 1. The model calculates profit growth rates and cracking spreads using changes in fuel and crude oil prices[30] 2. Allocation signals are designed based on oil prices, cracking spreads, and new drilling activity[30] - **Model Evaluation**: The model effectively captures the profitability dynamics of the refining industry, but its performance is influenced by oil price volatility[37] --- Backtesting Results of Models 1. Coal Industry Profit Forecast Model - **Excess Return**: The coal industry index achieved a cumulative excess return of 0.3% in July 2025[10] 2. Hog Supply-Demand Gap Estimation Model - **Supply-Demand Balance**: The model predicts a potential supply of 18,249,000 hogs and a demand of 18,226,000 hogs for Q4 2025, indicating a roughly balanced market[17] 3. Steel Industry Profit Forecast Model - **Profit Growth**: The model predicts positive year-over-year profit growth for July 2025, with improved per-ton profitability[23] 4. Glass and Cement Industry Profitability Tracking Model - **Glass Industry**: The model indicates that glass industry gross profit remains in a year-over-year decline, but the rate of decline has narrowed[29] - **Cement Industry**: The model predicts a slight year-over-year profit growth for the cement industry in July 2025[29] 5. Refining and Oilfield Services Profitability Model - **Profit Growth**: The model predicts slight year-over-year profit growth for the refining industry in July 2025[33] - **Oilfield Services**: The model observes that oil prices in July 2025 are lower than the previous year, with no significant change in new drilling activity[38]