量化组合跟踪周报 20260117：Beta 因子表现良好，量化选股组合超额收益显著-20260117

• The Beta factor achieved a positive return of 1.22% this week, while the size factor recorded a negative return of -0.79%, indicating a small-cap style in the market. Residual volatility and liquidity factors also showed negative returns of -0.77% and -0.56%, respectively[1][18][20] - In the CSI 300 stock pool, the top-performing factors this week were the 6-day moving average of transaction amounts (3.60%), 5-day average turnover rate (3.53%), and net profit gap (3.35%). The worst-performing factors were net inflow of large orders (-1.48%), the correlation between intraday volatility and transaction amounts (-1.30%), and the price-to-book ratio factor (-1.29%)[12][13] - In the CSI 500 stock pool, the best-performing factors this week were total asset growth rate (1.23%), post-morning return factor (1.12%), and single-quarter ROA YoY (1.02%). The worst-performing factors were the correlation between intraday volatility and transaction amounts (-2.89%), net inflow of large orders (-2.35%), and the price-to-book ratio factor (-2.30%)[14][15] - In the liquidity 1500 stock pool, the top-performing factors this week were single-quarter ROE (1.67%), total asset gross profit margin TTM (1.47%), and single-quarter ROA (1.33%). The worst-performing factors were the price-to-book ratio factor (-1.77%), the proportion of downside volatility (-1.39%), and the correlation between intraday volatility and transaction amounts (-1.19%)[16][17] - The PB-ROE-50 portfolio achieved positive excess returns this week, with -0.20% in the CSI 500 stock pool, 1.98% in the CSI 800 stock pool, and 2.85% in the overall market stock pool[23][24] - The institutional research portfolios also delivered positive excess returns this week. The public fund research stock selection strategy achieved an excess return of 3.24% relative to the CSI 800, while the private fund research tracking strategy achieved an excess return of 2.59% relative to the CSI 800[25][26] - The block trade portfolio, constructed based on the "high transaction, low volatility" principle, achieved an excess return of 3.94% relative to the CSI All Share Index this week[29][30] - The directed issuance portfolio, constructed around event-driven stock selection strategies, achieved an excess return of 1.16% relative to the CSI All Share Index this week[35][36]