量化组合跟踪周报 20260124：Beta 因子表现良好，量化选股组合超额收益显著-20260124

• The Beta factor and valuation factor achieved positive returns of 0.66% and 0.48% respectively, while the size factor had a negative return of -0.80%[1][18] - In the CSI 300 stock pool, the best-performing factors this week were the 5-day average turnover rate (4.52%), 5-day reversal (3.17%), and price-to-book ratio factor (3.10%)[1][12] - In the CSI 500 stock pool, the best-performing factors this week were the 5-day reversal (3.80%), single-quarter operating profit growth rate (1.98%), and price-to-sales ratio TTM reciprocal (1.65%)[1][14] - In the liquidity 1500 stock pool, the best-performing factors this week were the post-morning return factor (2.18%), 5-day reversal (2.17%), and standardized unexpected income (1.77%)[2][16] - The PB-ROE-50 portfolio achieved positive excess returns in various stock pools this week, with excess returns of 1.38% in the CSI 500 stock pool, 2.54% in the CSI 800 stock pool, and 4.23% in the entire market stock pool[2][23] - The public research stock selection strategy and private research tracking strategy achieved positive excess returns this week, with the public research stock selection strategy achieving an excess return of 0.61% relative to the CSI 800, and the private research tracking strategy achieving an excess return of 3.43% relative to the CSI 800[3][25] - The block trading portfolio achieved a positive excess return of 0.86% relative to the CSI All Share Index this week[3][29] - The directed issuance portfolio achieved a positive excess return of 1.32% relative to the CSI All Share Index this week[3][35]