A股三大指数下挫，沪指17连阳终结，成交额3.7万亿元，再刷历史纪录

Market Overview - The A-share market experienced a collective pullback on January 13, ending a 17-day winning streak, with the Shanghai Composite Index down by 0.64%, the Shenzhen Component down by 1.37%, and the ChiNext Index down by 1.96% [1][2] - The trading volume in the Shanghai and Shenzhen markets reached a record high of 3.7 trillion yuan [1] Sector Performance - Multiple companies issued risk warnings, leading to significant declines in sectors such as commercial aerospace and satellite internet, with nearly a hundred stocks, including Aerospace Electronics and China Satellite Communications, dropping over 8% [3] - The large aircraft and military sectors also saw declines, with stocks like Zhongtian Rocket and Leike Defense hitting their daily limit down [3] - The controllable nuclear fusion sector faced a downturn, with Wangzi New Materials hitting its daily limit down [3] - The communication equipment sector declined, with Changjiang Communication hitting its daily limit down [3] - Other sectors such as Beidou Navigation, quantum technology, 3D printing, CPO concepts, and F5G concepts experienced significant losses [3] Analyst Insights - Analyst Liu Hangdeng from Haineng Investment noted that after the 17-day rally, the market faced a volume adjustment of 3.65 trillion yuan, with commercial aerospace being the main sector under pressure [4] - The market encountered resistance near the 4180 level, indicating a short-term pullback, with support expected around the 4090 level [4] - The AI application sector, which had a strong performance previously, opened high but closed lower, although its structural trend and fundamental application logic remain strong [4] - The afternoon session saw a rapid surge in the electric power and grid equipment sector, indicating potential short-term opportunities [4] Precious Metals - Gold and silver prices showed volatility, but precious metal stocks led gains in the non-ferrous metal sector, with Mingbai Jewelry hitting the daily limit up and Hunan Silver approaching the daily limit up [4] - As of the report, spot gold fell slightly below 4590 USD/ounce, while spot silver fell below 85 USD/ounce [4][5]