两大GPU龙头，股价跳水

Market Overview - The A-share market experienced narrow fluctuations on the morning of December 24, with major indices showing mixed results but limited volatility [1][3] - The defense and military industry sector saw significant gains, with the sector's intraday increase exceeding 2% [3] Defense and Military Sector - Notable stocks in the defense sector included Xin Jing Gang, which hit the daily limit with a 20.02% increase, and Huo Lai Wo, which rose by over 12% [3][4] - Other stocks such as Xing Wang Yu Da, Bo Yun Xin Cai, and He Zhong Si Zhuang also reached their daily limits, with multiple stocks increasing by over 5% [3] GPU Sector - Two leading domestic GPU stocks, Mo Er Tui Xian and Mu Xi Co., saw declines, with both experiencing drops exceeding 7% [1][5] - Mu Xi Co. reached a new low since its listing, down over 20% from its initial closing price [5] New Listings - A new stock, Jian Xin Chao Dao, was listed on December 24, with its price surging by over 290% during the morning session [7] - The company focuses on the research, production, and sales of core components for MRI equipment, aiming to make MRI accessible for the general public [7][8] Other Market Movements - The coal, agriculture, forestry, animal husbandry, and media sectors were among the biggest decliners [5] - In the Hong Kong market, the Hang Seng Index showed slight increases, with notable gains in stocks like SMIC and Xinyi Solar [10] - Bai Ao Sai Tu - B saw a significant rise of over 24% due to its inclusion in the Hong Kong Stock Connect program [10]