PB-ROE模型周度仓位观点-20260131

• Model Name: PB-ROE Model - Model Construction Idea: The PB-ROE model calculates the residuals of the time series PB-ROE model, where the residuals represent the deviation of the market's actual valuation from the fundamental reasonable valuation[1][8] - Model Construction Process: - The model uses the regression equation: $Ln(P/B) = a + b \cdot ROE + C \cdot RealInterest + d \cdot Inflation$ - In this equation, $a$, $b$, $C$, and $d$ are parameters, $ROE$ is the return on equity, $RealInterest$ is the real interest rate, and $Inflation$ is the inflation rate[8][13] - The residuals are calculated as the difference between the actual PB and the fundamental reasonable PB[8] - When the residual > 0, the actual PB is higher than the fundamental reasonable PB, indicating high market sentiment and increased risk appetite[1][8] - When the residual < 0, the actual PB is lower than the fundamental reasonable PB, indicating low market sentiment and decreased risk appetite[1][8] - Model Evaluation: The PB-ROE residuals are significantly positively correlated with the next week's index returns, indicating that the model can effectively capture market sentiment and provide tactical positioning signals[8][13] - Model Test Results: - As of January 30, 2026, the overall market PB-ROE residual value was 0.18, exceeding the historical mean + 1 standard deviation, suggesting a high position (80%-100%) for the week of February 2-6, 2026[3][9] - Factor Name: PB-ROE Residual - Factor Construction Idea: The PB-ROE residual is the deviation of the market's actual valuation from the fundamental reasonable valuation, used to gauge market sentiment and risk appetite[1][8] - Factor Construction Process: - The factor is derived from the time series PB-ROE model: $Ln(P/B) = a + b \cdot ROE + C \cdot RealInterest + d \cdot Inflation$ - The residuals are calculated as the difference between the actual PB and the fundamental reasonable PB[8][13] - The historical mean ± 1 standard deviation of the residuals is used to determine the positioning signals[2][8] - Factor Evaluation: The PB-ROE residual is significantly positively correlated with the next week's index returns, indicating its effectiveness in capturing market sentiment and providing tactical positioning signals[8][13] - Factor Test Results: - The PB-ROE residual value as of January 30, 2026, was 0.18, suggesting a high position (80%-100%) for the week of February 2-6, 2026[3][9]