A股缩量分化，这些板块仍活跃！

Market Overview - The A-share market showed a significant loss effect, with over 4,400 stocks in the red during the morning session, but major indices managed to close slightly higher due to the support from heavyweight stocks [1][12] - The market's trading volume decreased by 359.3 billion yuan compared to the previous trading day, indicating a cautious sentiment among investors ahead of the Spring Festival [4][12] Sector Performance - Semiconductor, communication equipment, and aerospace sectors were notably active, with storage chips and automotive chips seeing gains of over 3% [5][10] - The coal and agriculture sectors experienced the largest declines, with coal stocks dropping over 2% [5][11] Stock Highlights - Several electronic stocks hit the daily limit, including Dongxin Co. and Shengke Communication, both rising by 20% [7][9] - In the defense sector, stocks like Triangle Defense and Aviation Power saw significant increases, with Triangle Defense rising over 11% [10][11] Investment Sentiment - Investors are advised to focus on sectors benefiting from "anti-involution" policies and to monitor changes in policy and capital flow, while avoiding stocks driven solely by speculative themes [3][12] - The market is expected to maintain a volatile pattern in the short term, with the Shanghai Composite Index likely to fluctuate between 4,050 and 4,200 points [15][16]