总量研究 制造业景气度持稳，油价延续下降趋势 ——金融工程行业景气月报 20260106 2026 年 1 月 6 日 要点 行业景气度信号追踪 煤炭：25 年 12 月，煤价略低于上年同期，我们预测 26 年 1 月行业利润同比微 降，维持煤炭行业中性观点。 畜牧养殖：25 年 11 月底能繁母猪存栏尚未公布，若和 10 月保持一致，据此我 们预测肉价至 26Q2 仍有修复动能，维持中性观点，等待产能继续去化。 普钢：我们预测 25 年 12 月普钢行业利润同比负增长。PMI 滚动均值环比持平， 维持普钢行业中性观点。 结构材料与建筑工程：我们测算 25 年 12 月浮法玻璃毛利同比延续负增长，维 持玻璃行业中性观点；我们预测水泥行业 25 年 12 月利润同比延续负增长，继 续等待房屋新开工面积出现积极信号，维持水泥行业中性观点；12 月制造业 PMI 滚动均值环比持稳，预计基建托底预期难以发酵，将建筑装饰行业调至中性观点。 燃料型炼化与油服：我们预测燃料型炼化行业 25 年 12 月利润同比大体持平。 油价延续下降趋势，维持炼化、油服行业中性观点。 风险分析：报告结果均基于模型及历史数据，模型存在失效的 ...

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]

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]