Quantitative Models and Construction Methods Dividend Enhancement Portfolio - **Model Name**: Dividend Enhancement Portfolio - **Model Construction Idea**: The model focuses on selecting high-quality dividend stocks and constructing portfolios that outperform the benchmark dividend index by leveraging dividend quality and growth factors[7][15][21] - **Model Construction Process**: - The portfolio is constructed by selecting stocks with high dividend yields and strong dividend growth potential - The selection process incorporates a combination of fundamental analysis and quantitative screening to identify stocks with stable and growing dividends - The portfolio is rebalanced periodically to ensure alignment with the dividend quality and growth criteria[13][14][15] - **Model Evaluation**: The model demonstrates strong performance in capturing excess returns over the benchmark dividend index, particularly in volatile market conditions[7][15][21] Electronic Balanced Allocation Enhancement Portfolio - **Model Name**: Electronic Balanced Allocation Enhancement Portfolio - **Model Construction Idea**: This model aims to achieve excess returns by balancing exposure across various sub-sectors within the electronics industry, focusing on growth and stability[7][24][29] - **Model Construction Process**: - The portfolio is constructed by allocating weights to sub-sectors such as LED chips and semiconductor distribution, which exhibit strong growth potential - Quantitative screening is applied to identify leading companies within these sub-sectors - The portfolio is periodically rebalanced to maintain a balanced exposure across the electronics industry[13][14][24] - **Model Evaluation**: The model effectively captures excess returns and ranks in the top 15% of active technology-themed products in terms of weekly performance[7][24][29] --- Model Backtesting Results Dividend Enhancement Portfolio - **Weekly Excess Return**: Approximately 0.23% for the "Central SOE High Dividend 30 Portfolio" and 1.45% for the "Balanced Dividend 50 Portfolio"[7][15][21] - **Year-to-Date Excess Return**: The "Balanced Dividend 50 Portfolio" achieved an excess return of approximately 7.91% relative to the benchmark dividend index, ranking in the top 35% of all dividend-themed funds[21] Electronic Balanced Allocation Enhancement Portfolio - **Weekly Excess Return**: Approximately 0.89%, ranking in the top 15% of active technology-themed products[7][24][29]

Quantitative Models and Construction Methods - **Model Name**: Dividend Enhanced Portfolio **Model Construction Idea**: Focuses on high-dividend stocks, aiming to capture excess returns from dividend-paying assets through a systematic approach[6][15] **Model Construction Process**: 1. Selects stocks with high dividend yields from the market. 2. Constructs two portfolios: "Central SOE High Dividend 30 Portfolio" and "Balanced Growth Dividend 50 Portfolio". 3. Applies a "steady + growth" style for the Central SOE portfolio and a "balanced offensive and defensive" style for the Dividend 50 portfolio[14][21] **Model Evaluation**: The model underperformed the benchmark this week, indicating weaker relative performance in the current market environment[21] - **Model Name**: Electronics Enhanced Portfolio **Model Construction Idea**: Focuses on the electronics sector, leveraging quantitative methods to identify outperforming sub-sectors and stocks[7][14] **Model Construction Process**: 1. Constructs two portfolios: "Electronics Balanced Allocation Enhanced Portfolio" and "Electronics Sector Preferred Enhanced Portfolio". 2. The Balanced Allocation Portfolio adopts a diversified approach across the electronics sector. 3. The Preferred Portfolio targets leading companies in mature sub-sectors of the electronics industry[14][31] **Model Evaluation**: Both portfolios outperformed the electronics sector index, demonstrating strong relative performance[31] Model Backtesting Results - **Dividend Enhanced Portfolio**: - Central SOE High Dividend 30 Portfolio: Weekly return of approximately 4.49%, underperforming the benchmark[15][21] - Balanced Growth Dividend 50 Portfolio: Weekly return of approximately 2.57%, also underperforming the benchmark[15][21] - **Electronics Enhanced Portfolio**: - Electronics Balanced Allocation Enhanced Portfolio: Weekly excess return of approximately 0.59%, ranking in the 15th percentile among active technology funds[7][31] - Electronics Sector Preferred Enhanced Portfolio: Weekly excess return of approximately 0.47%, ranking in the 17th percentile among active technology funds[7][31]