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招期金工股票策略环境监控周报:本周基差走阔宽基指数下跌后市股票策略性价比犹在-20250804
Zhao Shang Qi Huo· 2025-08-04 06:29
Quantitative Factors and Models Summary Quantitative Factors and Construction - **Factor Name**: BETA **Construction Idea**: Measures the sensitivity of a stock's returns to market returns, capturing systematic risk exposure [13][28] **Construction Process**: The BETA factor is calculated as the slope coefficient in a regression of a stock's returns against the market index returns over a specified period [13][28] **Evaluation**: This factor performed well during the week, indicating a positive contribution to portfolio returns [13][28] - **Factor Name**: Residual Volatility **Construction Idea**: Captures the idiosyncratic risk of a stock, independent of market movements [13][28] **Construction Process**: Residual volatility is derived from the standard deviation of the residuals in a regression of stock returns against market returns [13][28] **Evaluation**: This factor showed moderate positive performance during the week [13][28] - **Factor Name**: Momentum **Construction Idea**: Reflects the tendency of stocks with strong past performance to continue performing well in the short term [13][28] **Construction Process**: Momentum is calculated as the cumulative return of a stock over a specific look-back period, excluding the most recent month [13][28] **Evaluation**: This factor exhibited slight positive performance during the week [13][28] - **Factor Name**: Value **Construction Idea**: Measures the attractiveness of a stock based on its valuation metrics, such as price-to-earnings or price-to-book ratios [13][28] **Construction Process**: Value is computed using a weighted combination of valuation ratios, normalized across the universe of stocks [13][28] **Evaluation**: This factor underperformed during the week, indicating a negative contribution to portfolio returns [13][28] - **Factor Name**: Leverage **Construction Idea**: Represents the financial risk of a company based on its debt levels relative to equity [13][28] **Construction Process**: Leverage is calculated as the ratio of total debt to total equity for each stock [13][28] **Evaluation**: This factor showed slight negative performance during the week [13][28] - **Factor Name**: Size **Construction Idea**: Captures the performance difference between small-cap and large-cap stocks [13][28] **Construction Process**: Size is measured as the natural logarithm of a company's market capitalization [13][28] **Evaluation**: This factor significantly underperformed during the week, reflecting a preference for larger-cap stocks [13][28] Factor Backtesting Results - **BETA Factor**: Weekly return +0.27%, 1-year Sharpe ratio 2.74, 1-year maximum drawdown 5.40% [13][29] - **Residual Volatility Factor**: Weekly return +0.12%, 1-year Sharpe ratio -3.22, 1-year maximum drawdown 11.67% [13][29] - **Momentum Factor**: Weekly return +0.05%, 1-year Sharpe ratio 2.96, 1-year maximum drawdown 2.47% [13][29] - **Value Factor**: Weekly return -0.25%, 1-year Sharpe ratio -0.18, 1-year maximum drawdown 3.31% [13][29] - **Leverage Factor**: Weekly return -0.28%, 1-year Sharpe ratio 2.96, 1-year maximum drawdown 1.55% [13][29] - **Size Factor**: Weekly return -0.47%, 1-year Sharpe ratio -5.82, 1-year maximum drawdown 17.33% [13][29]