光线传媒，再封涨停！这一概念集体爆发！

Market Overview - A-shares showed mixed performance today, with the Shanghai Composite Index slightly down, while the North Stock Exchange 50 Index performed strongly, rising over 5% at one point [1] - The Shanghai Composite Index closed down 0.12% at 3318.06 points, the Shenzhen Component Index down 0.69% at 10557.62 points, and the ChiNext Index down 1.43% at 2152.73 points [1] - The North Stock Exchange 50 Index closed up 2.04%, with total trading volume across the three markets reaching 167.83 billion yuan, a decrease of over 80 billion yuan from the previous day [1] Banking Sector Performance - The banking sector saw a counter-trend rise, with Qingdao Bank up nearly 5%, and other major banks like China Construction Bank and Industrial and Commercial Bank of China also showing gains [2] - As of now, 13 listed banks have released their 2024 performance reports, with 10 banks reporting revenue growth and 12 banks showing an increase in net profit [2] - Analysts suggest that financial policies combined with fiscal measures are expected to promote stable growth in bank loans, particularly benefiting small and micro enterprises [2] AI Application Sector Activity - The AI application sector was notably active, with companies like Light Media hitting a 20% limit up and achieving a historical high [3] - Light Media has seen a cumulative increase of 110.9% over the last five trading days, significantly benefiting from the success of the film "Nezha" [3] - Analysts highlight that the launch of DeepSeek's open-source inference model is expected to lower entry barriers for enterprises, fostering innovation in AI applications across various sectors [3] DeepSeek Concept Decline - The previously hot DeepSeek concept saw a decline, with companies like Anheng Information and Ankai Microelectronics dropping over 11% [5] - Despite the decline, companies like Binhang Technology and Daily Interaction managed to close with gains, indicating volatility within the sector [5] - Anheng Information noted that its future performance is uncertain and dependent on product development and industry application progress [5]