A股三大股指跌超1.2%：周期股全线回调，两市成交不足2万亿元

Market Overview - The A-share market experienced a collective decline on February 13, with the Shanghai Composite Index falling by 1.26% to 4082.07 points, the ChiNext Index down by 1.57% to 3275.96 points, and the Shenzhen Component Index decreasing by 1.28% to 14100.19 points [2] - The total trading volume in the Shanghai and Shenzhen markets was 198.27 billion yuan, a decrease of 15.91 billion yuan from the previous trading day [2] Sector Performance - The defense and military sector led the market gains, with stocks like Andavere and Yaxing Anchor Chain hitting the daily limit or rising over 10% [3] - Semiconductor stocks initially surged, with companies such as Micro导纳米 and Shengke Communication seeing increases of over 10% [3] - Conversely, the oil and gas sector faced significant declines, with major companies like China Petroleum and Sinopec dropping over 3% [3] - The materials sector, particularly non-ferrous metals, was the worst performer, with stocks like Hesheng and Xianglu Tungsten falling over 9% [3] Investor Sentiment - As the Spring Festival holiday approaches, investor sentiment is shifting towards either "holding stocks over the holiday" or "holding cash and waiting," with many brokerages suggesting a strategy of holding stocks [4] - Financial analysts noted that trading activity has decreased as the holiday nears, indicating a potential phase of consolidation in the market [5] - There is a consensus among brokerages that the market is experiencing structural differentiation, with some sectors showing strength while others lag behind [5]