这一板块，爆发！多股涨停

Core Viewpoint - The defense and military sector has shown significant gains, with multiple stocks reaching their daily limit up, highlighting a strong performance in the A-share market on December 18 [1][2][5]. Market Overview - The A-share market exhibited a mixed performance, with the ChiNext index declining while the Shanghai Composite Index experienced a slight increase [2][4]. - The defense and military sector led the market, with a peak increase of nearly 2% during the trading session [5]. Stock Performance - Notable stocks in the defense sector included: - Aerospace Universe (涨幅 14.51%) [6] - West Test (涨幅 13.67%) [6] - North Mo High-Tech (涨幅 10.01%) [6] - Other stocks like Tianjian Technology, Aopu Optoelectronics, and China Satellite also reached their daily limit up [5][6]. - The overall trading volume was 1.06 trillion, with a predicted total of 1.70 trillion, indicating a decrease of 132.3 billion [5]. New Listings - A new stock, Yuan Chuang Co., debuted with a peak increase of over 210% during its trading session [8][11]. - Yuan Chuang Co. specializes in the research, production, and sales of rubber track products, establishing itself as a major player in the domestic market with a wide range of products and a strong competitive advantage [10].