财联社·2026-01-13 03:52Market Overview - The A-share ChiNext index experienced a pullback after an initial rise, with a drop exceeding 1% at one point. The total trading volume in the Shanghai and Shenzhen markets reached 2.44 trillion yuan, an increase of 128.3 billion yuan compared to the previous trading day. Over 2800 stocks in the market declined [1]. Sector Performance - The AI application sector continued to show strong performance, with over ten constituent stocks hitting the daily limit. Notable stocks include Ingrity Media, Lioo Co., and Provincial Advertising Group, all of which reached the limit. The AI medical sector was also active, with Meinian Health and Dean Diagnostics achieving three consecutive limit-ups, while Hongbo Pharmaceutical saw a 20% increase [3]. - In contrast, the commercial aerospace sector exhibited mixed performance. Stocks such as Shaoyang Hydraulic, Aerospace Changfeng, and Aerospace Technology fell over 10%, while Shaanxi Huada and Electronic Science & Technology Chip reached the limit. China Satellite and Star Map Control experienced significant fluctuations during the trading session [3]. Decline in Specific Concepts - The controlled nuclear fusion concept saw a collective decline, with stocks like Zhongzhou Special Materials and Prince New Materials experiencing significant drops. By the end of the trading session, the Shanghai Composite Index fell by 0.03%, the Shenzhen Component Index decreased by 0.31%, and the ChiNext Index dropped by 0.83% [4].