多因子选股周报：四大指增组合本周均跑赢基准，中证1000增强年内超额8.57%-20250524

• The report tracks the performance of Guosen JinGong's index enhancement portfolios and public fund index enhancement products, as well as the performance of common stock selection factors in different stock selection spaces[10][11][14] - Guosen JinGong's index enhancement portfolios are constructed using a multi-factor stock selection approach, targeting benchmarks such as the CSI 300, CSI 500, CSI 1000, and CSI A500 indices[10][11] - The construction process of these portfolios includes earnings forecasting, risk control, and portfolio optimization[11] - The report monitors the performance of factors in different stock selection spaces, including the CSI 300, CSI 500, CSI 1000, CSI A500, and public fund heavy-holding indices[14][15] - The factor library includes over 30 common factors from dimensions such as valuation, reversal, growth, profitability, liquidity, corporate governance, and analysts[15][16] - The report constructs single-factor MFE (Maximized Factor Exposure) portfolios for each factor in the respective stock selection spaces and tracks their performance relative to their benchmarks[14][17][19][21][23][25] - The construction of the MFE portfolios involves an optimization model with the objective function of maximizing single-factor exposure while controlling for various constraints such as style exposure, industry exposure, individual stock weight deviation, and component stock weight proportion[41][42][43] - The report provides detailed performance tracking of public fund index enhancement products, including those based on the CSI 300, CSI 500, CSI 1000, and CSI A500 indices[27][28][29][32][35][38] - The performance metrics for these products include excess returns over different periods, such as the past week, past month, past quarter, and year-to-date[31][34][37][40] Factor Performance Monitoring - In the CSI 300 index space, factors such as expected net profit QoQ, 3-month earnings revisions, and single-quarter surprise magnitude performed well recently, while 3-month reversal, single-quarter EP, and expected EPTTM performed poorly[1][17] - In the CSI 500 index space, factors such as illiquidity shock, single-quarter ROE, and expected PEG performed well recently, while 1-year momentum, idiosyncratic volatility, and single-quarter SP performed poorly[1][19] - In the CSI 1000 index space, factors such as 3-month turnover, 1-month turnover, and illiquidity shock performed well recently, while 1-year momentum, EPTTM 1-year percentile, and single-quarter operating profit growth YoY performed poorly[1][21] - In the CSI A500 index space, factors such as 3-month earnings revisions, single-quarter surprise magnitude, and DELTAROE performed well recently, while expected BP, 1-month reversal, and expected EPTTM performed poorly[1][23] - In the public fund heavy-holding index space, factors such as illiquidity shock, 3-month turnover, and 1-month turnover performed well recently, while 1-year momentum, expected EPTTM, and 1-month reversal performed poorly[1][25] Public Fund Index Enhancement Product Performance - CSI 300 index enhancement products: highest weekly excess return 1.07%, lowest -0.38%, median 0.11%; highest monthly excess return 2.89%, lowest -0.64%, median 0.49%[2][31] - CSI 500 index enhancement products: highest weekly excess return 0.90%, lowest -0.43%, median 0.45%; highest monthly excess return 2.93%, lowest -0.45%, median 1.07%[2][34] - CSI 1000 index enhancement products: highest weekly excess return 1.00%, lowest -0.41%, median 0.26%; highest monthly excess return 3.22%, lowest -0.16%, median 1.35%[2][37] - CSI A500 index enhancement products: highest weekly excess return 0.41%, lowest -0.19%, median 0.09%; highest monthly excess return 1.08%, lowest -0.46%, median 0.33%[3][40]