研究早观点 2025 年 12 月 19 日 星期五 市场走势 【行业评论】通信：周跟踪（20251208-20251214）-博通财报验证 ASIC 景气度，长 12 甲有望再挑战可回收任务 【山证新材料】PCB 材料行业报告-乘 AI 之风，PCB 材料向高频高速 升级 资料来源：常闻 国内市场主要指数 | 指数 | 收盘 | 涨跌幅% | | --- | --- | --- | | 上证指数 | 3,876.37 | 0.16 | | 深证成指 | 13,053.97 | -1.29 | | 沪深 300 | 4,552.79 | -0.59 | | 中小板指 | 7,902.79 | -1.12 | | 创业板指 | 3,107.06 | -2.17 | | 科创 50 | 1,305.97 | -1.46 | 资料来源：常闻 分析师： 彭皓辰 执业登记编码：S0760525060001 【今日要点】 邮箱：penghaochen@sxzq.com 2019 年 2 月 21 日 星期四 请务必阅读最后股票评级说明和免责声明 1 研究早观点 【今日要点】 【行业评论】通信：周跟踪（20251208-2 ...

Market Overview - The market experienced fluctuations with the ChiNext index leading the decline, closing down 1% while the Shanghai Composite Index fell by 0.51% and the Shenzhen Component Index decreased by 0.91% [2] - The total trading volume in the Shanghai and Shenzhen markets was 1.44 trillion yuan, a decrease of 24.9 billion yuan compared to the previous trading day, with over 3,200 stocks declining [3] Sector Performance - Sectors such as deep-sea technology, military industry, coal, and wind power saw significant gains, while data center power supply, gaming, liquor, and consumer electronics faced notable declines [4] New Stock Performance - The newly listed stock Jiangnan New Materials surged over 700% during intraday trading, achieving the largest first-day gain for a new stock this year [5][6] - Jiangnan New Materials opened at a 526.19% increase and closed with a 606% rise, reaching a market capitalization of 10.8 billion yuan and a turnover rate of 85% [7][10] Company Insights - Jiangnan New Materials is a key supplier of materials in the PCB industry chain, focusing on the research, production, and sales of electronic circuit copper-based new materials, with a market share of 24% globally and 41% domestically in the copper ball product segment [10] - The company reported a 34.83% year-on-year increase in net profit for 2023 and anticipates a further 24.37% growth in 2024, with projected revenues for Q1 2025 expected to grow by 19.02% to 29.53% year-on-year [10] Robotics Sector - The humanoid robot concept stocks have become active, with Xiangyang Bearing hitting the limit up, and other companies like Shuanglin Shares and Baisheng Intelligent rising over 10% [12] - The rapid development of humanoid robots in China has been highlighted by recent technological breakthroughs, including a robot capable of performing a side flip [15] Marine Economy - The marine economy sector saw significant growth, with companies like Tianhai Defense and Yaxing Anchor Chain experiencing over 10% increases [18] - The Shanghai Municipal Oceanic Administration announced plans for marine industry development, which is expected to drive GDP growth and enhance the scale of the marine economy [20]