金融工程定期：开源交易行为因子绩效月报（2025年10月）-20251031

• The report tracks the performance of Barra style factors for October 2025, showing that the market capitalization factor recorded a return of -1.49%, the book-to-market ratio factor recorded a return of 0.39%, the growth factor recorded a return of -0.34%, and the earnings expectations factor recorded a return of 0.12%[4][14] - The report introduces a series of stock selection factors based on trading behavior, including the Ideal Reversal Factor, Smart Money Factor, APM Factor, and Ideal Amplitude Factor[5][15] - The Ideal Reversal Factor is constructed by segmenting the traditional reversal factor using W-shaped cuts, focusing on the average transaction amount per trade to identify the trading days with the strongest reversal attributes[41] - The Smart Money Factor is constructed by analyzing minute-level price and volume data to identify the involvement of institutional investors, using a specific formula to calculate the factor value[42][44] - The APM Factor measures the difference in stock price behavior between morning (or overnight) and afternoon trading sessions, using a regression model to calculate the residuals and then constructing a statistical measure to quantify the difference[43][45][46] - The Ideal Amplitude Factor measures the difference in amplitude information between high and low price states, calculating the average amplitude for the highest and lowest 25% of trading days and then taking the difference[48] - The historical performance of the Ideal Reversal Factor shows an IC mean of -0.050, rankIC mean of -0.061, IR of 2.48, and a long-short monthly win rate of 78.1%[6][16] - The historical performance of the Smart Money Factor shows an IC mean of -0.038, rankIC mean of -0.062, IR of 2.74, and a long-short monthly win rate of 81.2%[6][21] - The historical performance of the APM Factor shows an IC mean of 0.028, rankIC mean of 0.034, IR of 2.25, and a long-short monthly win rate of 76.5%[6][25] - The historical performance of the Ideal Amplitude Factor shows an IC mean of -0.054, rankIC mean of -0.074, IR of 3.03, and a long-short monthly win rate of 83.3%[6][28] - The historical performance of the composite trading behavior factor shows an IC mean of 0.067, rankIC mean of 0.093, IR of 3.33, and a long-short monthly win rate of 80.0%[6][32] - In October 2025, the Ideal Reversal Factor recorded a long-short return of 1.63% with a 12-month long-short monthly win rate of 66.7%[7][16] - In October 2025, the Smart Money Factor recorded a long-short return of 2.90% with a 12-month long-short monthly win rate of 83.3%[7][21] - In October 2025, the APM Factor recorded a long-short return of -1.13% with a 12-month long-short monthly win rate of 41.7%[7][25] - In October 2025, the Ideal Amplitude Factor recorded a long-short return of 3.33% with a 12-month long-short monthly win rate of 66.7%[7][28] - In October 2025, the composite trading behavior factor recorded a long-short return of 3.73% with a 12-month long-short monthly win rate of 75.0%[7][32]