Quantitative Models and Construction Methods Model 1: Dividend Forecast and Basis Adjustment Model - **Model Name**: Dividend Forecast and Basis Adjustment Model - **Model Construction Idea**: The model predicts the dividend points of the underlying index of stock index futures during the contract period and adjusts the basis accordingly. - **Model Construction Process**: - Predict the dividend points of the underlying index for the next year. For example, the predicted dividend points for the CSI 500, CSI 300, SSE 50, and CSI 1000 indices are 84.93, 90.40, 75.15, and 63.87, respectively[9][10][11][12][13][14][15][16][17][18]. - Calculate the basis as the difference between the futures contract closing price and the underlying index closing price. - Adjust the basis by adding the expected dividends during the contract period to the actual basis. - Annualize the adjusted basis using the formula: $$ \text{Annualized Basis} = \frac{\text{Actual Basis} + \text{Expected Dividend Points}}{\text{Index Price}} \times \frac{360}{\text{Remaining Days of the Contract}} $$ - Example: The annualized basis for the IC current season contract adjusted for dividends is -8.64%[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. - **Model Evaluation**: The model effectively adjusts the basis to account for dividends, providing a more accurate measure of the futures contract's value relative to the underlying index. Model 2: Continuous Hedging Strategy - **Model Name**: Continuous Hedging Strategy - **Model Construction Idea**: The strategy aims to hedge the basis risk by continuously holding futures contracts and adjusting positions based on the contract's expiration. - **Model Construction Process**: - **Backtest Parameters and Settings**: - Backtest period: July 22, 2022, to December 12, 2025[43][44][45]. - Spot end: Hold the total return index of the corresponding underlying index. - Futures end: Use 70% of the funds for the spot end and the same nominal principal amount for the futures end, occupying the remaining 30% of the funds. - Rebalance rule: Continuously hold the current month/season contract until the contract has less than 2 days to expiration, then close the position at the closing price and short the next season/current month contract at the closing price. - **Performance**: - Annualized return: -3.41% (current month), -2.42% (season), -1.94% (minimum basis strategy)[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. - Volatility: 3.80% (current month), 4.70% (season), 4.51% (minimum basis strategy). - Maximum drawdown: -11.20% (current month), -8.34% (season), -8.70% (minimum basis strategy). - Net value: 0.8893 (current month), 0.9205 (season), 0.9360 (minimum basis strategy). - **Model Evaluation**: The continuous hedging strategy provides a systematic approach to managing basis risk, though it may result in negative returns under certain market conditions. Model Backtest Results - **Dividend Forecast and Basis Adjustment Model**: - CSI 500: Annualized basis -8.64%[20] - CSI 300: Annualized basis -3.44%[27] - SSE 50: Annualized basis -0.70%[32] - CSI 1000: Annualized basis -12.38%[38] - **Continuous Hedging Strategy**: - CSI 500: Annualized return -3.41% (current month), -2.42% (season), -1.94% (minimum basis strategy)[46] - CSI 300: Annualized return 0.36% (current month), 0.70% (season), 1.08% (minimum basis strategy)[52] - SSE 50: Annualized return 1.08% (current month), 2.02% (season), 1.68% (minimum basis strategy)[56] - CSI 1000: Annualized return -6.43% (current month), -4.70% (season), -4.38% (minimum basis strategy)[58] Quantitative Factors and Construction Methods Factor 1: Cinda-VIX - **Factor Name**: Cinda-VIX - **Factor Construction Idea**: Reflects the market's expectation of future volatility of the underlying asset based on option prices. - **Factor Construction Process**: - Calculate the implied volatility of options with different maturities. - Aggregate the implied volatilities to form the VIX index for different indices. - Example: As of December 12, 2025, the 30-day VIX for SSE 50, CSI 300, CSI 500, and CSI 1000 are 15.93, 17.03, 22.82, and 20.49, respectively[61][62][63][64][65][66][67][68][69][70][71][72]. - **Factor Evaluation**: The Cinda-VIX index provides valuable insights into market sentiment and expected volatility, aiding in risk management and trading decisions. Factor 2: Cinda-SKEW - **Factor Name**: Cinda-SKEW - **Factor Construction Idea**: Measures the skewness of implied volatility across different strike prices, indicating market expectations of tail risk. - **Factor Construction Process**: - Calculate the implied volatility for options with different strike prices. - Measure the skewness of the implied volatilities to form the SKEW index. - Example: As of December 12, 2025, the SKEW for SSE 50, CSI 300, CSI 500, and CSI 1000 are 101.80, 108.04, 104.65, and 108.10, respectively[68][69][70][71][72][73]. - **Factor Evaluation**: The Cinda-SKEW index captures market concerns about tail risks, providing a useful tool for assessing potential market stress and investor sentiment. Factor Backtest Results - **Cinda-VIX**: - SSE 50: 15.93[61] - CSI 300: 17.03[61] - CSI 500: 22.82[61] - CSI 1000: 20.49[61] - **Cinda-SKEW**: - SSE 50: 101.80[68] - CSI 300: 108.04[68] - CSI 500: 104.65[68] - CSI 1000: 108.10[68]

Quantitative Models and Construction Methods 1. Model Name: Continuous Hedging Strategy - **Model Construction Idea**: This strategy is based on the analysis of basis convergence factors and optimization strategies, as detailed in the Cinda Derivatives Research Report Series. It aims to continuously hedge using futures contracts to minimize basis risk[44][45] - **Model Construction Process**: - **Backtesting Period**: From July 22, 2022, to July 11, 2025[45] - **Spot Side**: Hold the total return index of the corresponding underlying index[45] - **Futures Side**: Use 70% of the funds for the spot side and allocate the same nominal principal to short futures contracts, occupying the remaining 30% of the funds. After each rebalancing, recalculate the quantities for both the spot and futures sides based on the product's net value[45] - **Rebalancing Rules**: Continuously hold quarterly/monthly contracts until the remaining time to maturity is less than two days. On that day, close the position at the closing price and simultaneously short the next quarterly/monthly contract at the closing price[45] - **Assumptions**: Equal principal allocation between the spot and futures sides, excluding transaction fees, impact costs, and the indivisibility of futures contracts[45] 2. Model Name: Minimum Basis Strategy - **Model Construction Idea**: This strategy selects futures contracts with the smallest annualized basis discount to optimize hedging performance[46] - **Model Construction Process**: - **Backtesting Period**: From July 22, 2022, to July 11, 2025[46] - **Spot Side**: Hold the total return index of the corresponding underlying index[46] - **Futures Side**: Use 70% of the funds for the spot side and allocate the same nominal principal to short futures contracts, occupying the remaining 30% of the funds. After each rebalancing, recalculate the quantities for both the spot and futures sides based on the product's net value[46] - **Rebalancing Rules**: Calculate the annualized basis for all tradable futures contracts on the day of rebalancing and select the contract with the smallest basis discount for opening positions. Hold the same contract for eight trading days or until the remaining time to maturity is less than two days before selecting a new contract[46] - **Assumptions**: Equal principal allocation between the spot and futures sides, excluding transaction fees, impact costs, and the indivisibility of futures contracts[46] --- Model Backtesting Results 1. Continuous Hedging Strategy - **IC (CSI 500 Futures)**: - Annualized Return: -2.83% (monthly), -2.06% (quarterly)[48] - Volatility: 3.87% (monthly), 4.77% (quarterly)[48] - Maximum Drawdown: -8.26% (monthly), -8.34% (quarterly)[48] - Net Value: 0.9188 (monthly), 0.9405 (quarterly)[48] - Annual Turnover: 12 (monthly), 4 (quarterly)[48] - 2025 YTD Return: -3.58% (monthly), -1.35% (quarterly)[48] - **IF (CSI 300 Futures)**: - Annualized Return: 0.49% (monthly), 0.71% (quarterly)[51] - Volatility: 3.01% (monthly), 3.35% (quarterly)[51] - Maximum Drawdown: -3.95% (monthly), -4.03% (quarterly)[51] - Net Value: 1.0144 (monthly), 1.0211 (quarterly)[51] - Annual Turnover: 12 (monthly), 4 (quarterly)[51] - 2025 YTD Return: -0.89% (monthly), 0.12% (quarterly)[51] - **IH (SSE 50 Futures)**: - Annualized Return: 1.03% (monthly), 1.97% (quarterly)[54] - Volatility: 3.12% (monthly), 3.54% (quarterly)[54] - Maximum Drawdown: -4.22% (monthly), -3.76% (quarterly)[54] - Net Value: 1.0307 (monthly), 1.0593 (quarterly)[54] - Annual Turnover: 12 (monthly), 4 (quarterly)[54] - 2025 YTD Return: -0.01% (monthly), 0.99% (quarterly)[54] - **IM (CSI 1000 Futures)**: - Annualized Return: -6.04% (monthly), -4.45% (quarterly)[59] - Volatility: 4.74% (monthly), 5.79% (quarterly)[59] - Maximum Drawdown: -14.01% (monthly), -12.63% (quarterly)[59] - Net Value: 0.8469 (monthly), 0.8805 (quarterly)[59] - Annual Turnover: 12 (monthly), 4 (quarterly)[59] - 2025 YTD Return: -9.11% (monthly), -4.54% (quarterly)[59] 2. Minimum Basis Strategy - **IC (CSI 500 Futures)**: - Annualized Return: -1.06%[48] - Volatility: 4.67%[48] - Maximum Drawdown: -7.97%[48] - Net Value: 0.9692[48] - Annual Turnover: 17.28[48] - 2025 YTD Return: -0.96%[48] - **IF (CSI 300 Futures)**: - Annualized Return: 1.31%[51] - Volatility: 3.14%[51] - Maximum Drawdown: -4.06%[51] - Net Value: 1.0392[51] - Annual Turnover: 15.25[51] - 2025 YTD Return: 0.56%[51] - **IH (SSE 50 Futures)**: - Annualized Return: 1.72%[54] - Volatility: 3.14%[54] - Maximum Drawdown: -3.91%[54] - Net Value: 1.0516[54] - Annual Turnover: 15.93[54] - 2025 YTD Return: 1.04%[54] - **IM (CSI 1000 Futures)**: - Annualized Return: -3.83%[59] - Volatility: 5.59%[59] - Maximum Drawdown: -11.11%[59] - Net Value: 0.8949[59] - Annual Turnover: 15.91[59] - 2025 YTD Return: -3.89%[59] --- Quantitative Factors and Construction Methods 1. Factor Name: Cinda-VIX - **Factor Construction Idea**: Reflects investors' expectations of future volatility in the options market, with a term structure to capture expectations over different time horizons[61] - **Factor Construction Process**: Adjusted based on overseas methodologies and tailored to China's options market. The index reflects implied volatility from options pricing[61] - **Factor Evaluation**: Provides insights into market sentiment and risk expectations[61] 2. Factor Name: Cinda-SKEW - **Factor Construction Idea**: Measures the skewness of implied volatility across different strike prices, capturing market expectations of extreme events[69][70] - **Factor Construction Process**: Analyzes the slope of implied volatility curves to quantify the degree of skewness, with higher values indicating greater concern for tail risks[69][70] - **Factor Evaluation**: Useful for identifying market concerns about potential extreme downside risks[70] --- Factor Backtesting Results 1. Cinda-VIX - **30-Day VIX Values**: - SSE 50: 19.77[61] - CSI 300: 18.92[61] - CSI 500: 25.01[61] - CSI 1000: 23.34[61] 2. Cinda-SKEW - **SKEW Values**: - SSE 50: 97.27[70] - CSI 300: 99.19[70] - CSI 500: 102.27[70] - CSI 1000: 101.82[70]