Quantitative Model and Construction Model Name: Relative Index Trend Tracking Model for Social Services - **Model Construction Idea**: The model assumes that the price movement of the target has strong local continuity, where prices are always in a certain trend. Reversal trends are shorter in duration compared to trend continuations. In cases of narrow-range consolidation, the model assumes the continuation of the previous trend. For large-scale trends, given a short observation window, the movement will follow the local trend within the window. When a reversal occurs, the price change at the start and end of the observation window will significantly exceed the range caused by random fluctuations, thus eliminating the impact of randomness[3] - **Model Construction Process**: 1. Calculate the difference between the closing price on day T and the closing price on day T-20, denoted as `del` 2. Calculate the volatility (`Vol`) over the period from T-20 to T (excluding T) 3. If the absolute value of `del` exceeds N times `Vol`, the current price is considered to have broken out of the original oscillation range, forming a trend. The trend direction (long/short) corresponds to the sign of `del` 4. If the absolute value of `del` is less than or equal to N times `Vol`, the current movement is considered to continue the previous trend direction (same as T-1) 5. For tracking, N is set to 1, considering the higher volatility of the stock market compared to the bond market, which provides more short-term opportunities 6. The model evaluates the combined results of long and short returns for the social services sector relative to the CSI 300 index[3] - **Model Evaluation**: The model is not suitable for direct application to the relative value of the SW First-Level Social Services Index due to its poor cumulative return performance during most of the backtesting period. However, it showed strong performance during a short period of rapid net value growth[4] --- Model Backtesting Results Relative Index Trend Tracking Model for Social Services - **Annualized Return**: -2.87%[3] - **Annualized Volatility**: 21.22%[3] - **Sharpe Ratio**: -0.14[3] - **Maximum Drawdown**: 23.32%[3] - **Total Return**: -20.18%[3]