Report Summary 1. Investment Rating No investment rating for the industry is provided in the report. 2. Core Views - The scale of stock - type ETFs in the domestic market continues to decline, with a significant reduction of 15 billion shares in broad - based ETFs in a single day. Large - cap index is dragged down by large - order pressing on multiple weight stocks at the end of the session. Meanwhile, the CSI 500 index rebounds after filling the gap, and long opportunities in IH and IC should be continuously monitored [2]. - Enterprises' profits are recovering. In 2025, the total profit of industrial enterprises above the designated size in China reached 7.4 trillion yuan, a year - on - year increase of 0.6%, reversing the three - year decline trend. In December, the profit of industrial enterprises above the designated size changed from a 13.1% decline in November to a 5.3% increase [1]. - A - share major indices closed up in the spot market, with sector indices mostly falling. In the futures market, the basis of stock index futures rebounded, and the current - month contracts were all at a premium. The trading volume of stock index futures decreased, while the IM position increased [1]. 3. Summary by Directory Market Analysis - **Macro - economy**: In 2025, the total profit of industrial enterprises above the designated size in China was 7.4 trillion yuan, up 0.6% year - on - year. In December, the profit changed from a 13.1% decline in November to a 5.3% increase. Trump plans to raise the tariff on South Korean products from 15% to 25%. The US consumer confidence index in January dropped to 84.5, the lowest since 2014 [1]. - **Spot market**: A - share major indices closed up, with the Shanghai Composite Index rising 0.18% to 4139.9 points and the ChiNext Index rising 0.71%. Sector indices mostly fell, with electronics, communication, and national defense and military industries leading the gains, and coal, agriculture, forestry, animal husbandry, and steel industries leading the losses. The trading volume of the Shanghai and Shenzhen stock markets decreased to 2.9 trillion yuan. US major indices closed mixed, with the Dow Jones Industrial Average falling 0.83% and the Nasdaq rising 0.91% [1]. - **Futures market**: The basis of stock index futures rebounded, and the current - month contracts were at a premium. The trading volume of stock index futures decreased, and the IM position increased [1]. Strategy - The scale of stock - type ETFs in the domestic market continues to decline. The share of broad - based ETFs decreased by 15 billion shares in a single day. Pay attention to long opportunities in IH and IC [2]. Charts - **Macro - economic charts**: Include relationships between the US dollar index, US Treasury yields, RMB exchange rate and A - share trends and styles [5][10][12][13]. - **Spot market tracking charts**: Show the daily performance of major domestic stock indices on January 27, 2026, including the Shanghai Composite Index, Shenzhen Component Index, ChiNext Index, etc. [12]. - **Stock index futures tracking charts**: Provide information on the trading volume, position, basis, and inter - period spreads of stock index futures such as IF, IH, IC, and IM [14][37][41].

Quantitative Models and Construction Methods - **Model Name**: Dividend Forecast Model **Model Construction Idea**: The model aims to predict the impact of dividends on index futures pricing by estimating the dividend distribution of index constituent stocks and its influence on futures contracts[9][20][23] **Model Construction Process**: 1. **Estimate Net Profit of Constituent Stocks**: Use annual reports, earnings forecasts, and other financial data to estimate the net profit of each constituent stock[21][23] 2. **Calculate Pre-Tax Total Dividends**: Based on the assumption that the dividend payout ratio remains constant, calculate the total pre-tax dividends for each stock[24][27] 3. **Assess Dividend Impact on Index**: - Dividend Yield = Total Post-Tax Dividends / Latest Market Value - Dividend Points = Stock Weight × Dividend Yield - Adjust stock weights using the formula: $$\mathrm{w_{it}={\frac{w_{i0}\times\mathrm{\(\1+R\)}}{\sum_{1}^{n}w_{i0}\times\mathrm{\(\1+R\)}}}}$$ where \(w_{i0}\) is the initial weight, and \(R\) is the stock's return over the period[24] 4. **Predict Dividend Impact on Futures Contracts**: - Estimate ex-dividend dates based on historical patterns or announced schedules - Aggregate all dividends before the contract's settlement date to calculate the total impact on futures pricing[25][26][28] **Model Evaluation**: The model provides a systematic approach to quantify dividend impacts, but its accuracy depends on the reliability of assumptions and historical data[9][20][23] - **Model Name**: Futures Pricing Model with Discrete Dividends **Model Construction Idea**: This model calculates the theoretical price of index futures by incorporating the present value of discrete dividend distributions during the contract period[29] **Model Construction Process**: - Formula: $$F_t = (S_t - D)(1 + r)$$ where \(F_t\) is the futures price, \(S_t\) is the spot price, \(D\) is the present value of dividends, and \(r\) is the risk-free rate[29] **Model Evaluation**: The model is effective for scenarios with distinct dividend distributions but may not capture continuous dividend flows accurately[29] - **Model Name**: Futures Pricing Model with Continuous Dividends **Model Construction Idea**: This model assumes dividends are distributed continuously over time and calculates the theoretical futures price accordingly[30] **Model Construction Process**: - Formula: $$F_t = S_t e^{(r-d)(T-t)}$$ where \(F_t\) is the futures price, \(S_t\) is the spot price, \(r\) is the risk-free rate, \(d\) is the annualized dividend yield, and \(T-t\) is the time to maturity[30] **Model Evaluation**: Suitable for markets with frequent and evenly distributed dividends, providing a more realistic pricing framework in such scenarios[30] Model Backtesting Results - **Dividend Forecast Model**: - Remaining dividend impact on July contracts: IH (0.82%), IF (0.57%), IC (0.16%), IM (0.14%)[15] - Annualized hedging costs (excluding dividends, 365-day basis): IH (-4.89%), IF (-2.72%), IC (12.34%), IM (16.97%)[6][10][12][13][14] - **Futures Pricing Model with Discrete Dividends**: - Not explicitly tested in the report - **Futures Pricing Model with Continuous Dividends**: - Not explicitly tested in the report Quantitative Factors and Construction Methods - **Factor Name**: Dividend Yield Factor **Factor Construction Idea**: Measures the dividend yield of index constituent stocks to assess their contribution to the overall index dividend impact[24] **Factor Construction Process**: - Formula: Dividend Yield = Total Post-Tax Dividends / Latest Market Value[24] **Factor Evaluation**: Provides a direct measure of dividend contribution but may be sensitive to market value fluctuations[24] - **Factor Name**: Stock Weight Adjustment Factor **Factor Construction Idea**: Adjusts the weight of each stock in the index based on its return over a specified period[24] **Factor Construction Process**: - Formula: $$\mathrm{w_{it}={\frac{w_{i0}\times\mathrm{\(\1+R\)}}{\sum_{1}^{n}w_{i0}\times\mathrm{\(\1+R\)}}}}$$ where \(w_{i0}\) is the initial weight, and \(R\) is the stock's return over the period[24] **Factor Evaluation**: Enhances the accuracy of dividend impact calculations by accounting for stock performance dynamics[24] Factor Backtesting Results - **Dividend Yield Factor**: - Not explicitly tested in the report - **Stock Weight Adjustment Factor**: - Not explicitly tested in the report