Southwest Securities·2026-01-30 07:20Investment Rating - The report does not explicitly state an investment rating for the industry or specific companies [3]. Core Insights - The top five sectors with the highest excess returns for long positions in January 2026 (excluding comprehensive) are Defense and Military, Communication, Agriculture, Home Appliances, and Electric Equipment & New Energy, with excess returns of 11.41%, 8.40%, 7.85%, 6.01%, and 4.98% respectively [2]. - Over the past year, the sectors with the highest average monthly excess returns (excluding comprehensive) are Real Estate, Home Appliances, Retail, Construction, and Defense and Military, with excess returns of 2.17%, 2.09%, 1.69%, 1.69%, and 1.58% respectively [2]. - The GAN_GRU factor has shown a mean Information Coefficient (IC) of 0.1107 and an annualized excess return of 22.36% from January 2019 to January 2026 [41]. - As of January 28, 2026, the latest IC for the GAN_GRU factor is 0.0003, with a one-year mean IC of 0.0553 [41]. - The top five sectors based on the recent IC performance of the GAN_GRU factor are Defense and Military, Construction, Real Estate, Banking, and Communication, with IC values of 0.3498, 0.2478, 0.2165, 0.1993, and 0.1976 respectively [41]. - The long position combination based on the GAN_GRU factor has shown the highest excess returns in the sectors of Defense and Military, Communication, Agriculture, Home Appliances, and Electric Equipment & New Energy [45]. Summary by Sections GAN_GRU Model Overview - The GAN_GRU model utilizes Generative Adversarial Networks (GAN) for processing time-series features and GRU for encoding these features into stock selection factors [4][13]. GAN_GRU Factor Performance - The GAN_GRU factor has demonstrated significant performance metrics, including a mean IC of 0.1107 and an annualized excess return of 22.36% [41]. - The recent IC rankings for various sectors indicate strong performance in Defense and Military, Construction, and Real Estate [41][45]. Long Position Combinations - The report lists the top ten stocks selected based on the GAN_GRU factor, including companies like Xinhua Insurance, Guanghong Technology, and Guangdong Expressway [50].