A股成交额3.6万亿创新高，4100股上涨，AI应用概念全线爆发

Market Performance - On January 12, the A-share market experienced a significant rally, with all three major indices rising over 1% and total trading volume reaching 3.6 trillion yuan, marking the second consecutive trading day above 3 trillion yuan, an increase of 492.2 billion yuan compared to the previous trading day, setting a new record for trading volume in 2024 [1] - Over 4,100 stocks in the market rose, with 201 stocks hitting the daily limit [1] Sector Highlights - The AI application sector saw a comprehensive surge, with stocks such as Ingrity Media (603598) achieving five consecutive daily limits in six days, and other companies like Liou Co. (002131), Meien Health (002044), and Tianxiao Show (600556) also performing strongly with consecutive daily limits [1] - The commercial aerospace concept continued its strong performance, with Goldwind Technology (002202) achieving five consecutive daily limits and Tongyu Communication (002792) hitting three daily limits in four days [2] - The brain-computer interface concept stocks rose, with Nanjing Panda (600775) achieving five daily limits in six days, while controllable nuclear fusion concept stocks were active, with companies like Falson (000890) hitting the daily limit and Hahuan Huadong (301137) rising over 11% [2] Investment Insights - According to Dong Zhongyun, Chief Economist at Zhonghang Securities, the spring market rally may have entered a main upward wave, supported by improvements in fundamentals and policies [3] - The December domestic inflation data showed continued improvement, with the CPI rising 0.8% year-on-year, an increase of 0.1 percentage points from the previous month, reaching the highest level since March 2023 [3] - Dong suggested that the spring market rally may be more stable and prolonged compared to previous years, recommending balanced allocation in sectors with marginal catalysts and monitoring industries with improving fundamentals for early positioning [4]