Core Viewpoint - Zhongke Shuguang (603019.SH) has launched the world's first single-rack 640-card super node scaleX640, which significantly enhances computing power and efficiency in large-scale computing environments [1] Group 1: Product Features - The scaleX640 features a "one-to-two" high-density architecture design, achieving ultra-high-speed interconnection with 640 cards in a single rack [1] - It can form a thousand-card computing unit by connecting two scaleX640 super nodes, enabling large-scale, high-bandwidth, low-latency communication [1] Group 2: Performance Improvements - Compared to similar products in the industry, the comprehensive computing performance of the scaleX640 has doubled, while the computing density in a single rack has increased by 20 times [1] - In traditional scenarios, it can achieve a 30%-40% performance improvement for MoE trillion-parameter model training and inference [1] Group 3: Reliability Testing - The product has undergone over 30 days of long-term stability testing, ensuring reliable deployment for ultra-large-scale cluster expansions [1]

格隆汇12月16日｜根据上海证券交易所此前公告，上证50指数更换4只样本，其中，上汽集团、北方稀 土、华电新能、中科曙光调入上证50指数样本。上汽集团方面认为这一调整不仅印证了公司在市值规 模、市场流动性等核心指标上的实力，更标志着其全面深化改革与创新转型成效获得资本市场高度认 可。 ...

个股方面，25只个股获融资净买入额超1亿元。航天电子获融资净买入额居首，净买入7.78亿元；融资净买入金额居前的还有中国平安、胜宏科技、阳光电 源、寒武纪、通宇通讯、新易盛、菲利华、摩尔线程、中科曙光等。 | 序号 | | | | | | --- | --- | --- | --- | --- | | | 证券代码 ◆ | 证券简称 = | 交易日期 ◆ | 融资净买入额(万元) ◆ | | 1 | 600879.SH | 航天电子 | 2025-12-15 | 77,847.53 | | 2 | 601318.SH | 中国平安 | 2025-12-15 | 66,889.42 | | 3 | 300476.SZ | 胜宏科技 | 2025-12-15 | 62,443.30 | | 4 | 300274.SZ | 阳光电源 | 2025-12-15 | 53,735.38 | | 5 | 688256.SH | 寒武纪 | 2025-12-15 | 45,796.87 | | 6 | 002792.SZ | 通宇通讯 | 2025-12-15 | 39,164.11 | | 7 | 300502.SZ | ...

近期A股市场高位震荡之际，机构调研上市公司热情不减，部分市场热门板块公司尤其受到关注。 Wind数据显示，截至12月15日中国证券报记者发稿时，12月以来已有超过520家上市公司获得机构调 研，合并告吹的中科曙光、海光信息以及商业航天概念股超捷股份等关注度居前，机械、电子、汽车、 基础化工等行业标的也受到机构密集调研。 对于后市相关领域投资机遇，业内人士认为，2025年是人形机器人批量应用元年，建议关注核心供 应商；可回收火箭的发射试验突破，给行业底层逻辑带来明确拐点；AI硬件尤其值得关注，重点配置 TPU产业链特别是光模块、PCB、OCS、光纤供应商等，此外关注硬件端紧缺环节的存储芯片、AI电力 等。 多家热门公司受机构青睐 超捷股份表示，除已合作的几家头部民营火箭企业外，公司正积极拓展商业航天领域的其他潜在客 户，预计将于明年一季度起陆续有新客户进入批量合作阶段，并签署新的订单；公司商业航天业务已于 2025年实现产品的稳定小批量交付并初步形成小幅盈利，预计2026年相关业务营收将实现较快增长，整 体盈利水平亦有望较2025年进一步改善。 板块投资机遇值得期待 从12月以来获机构调研的上市公司行业分布情况 ...

包括前述两家公司在内，Wind数据显示，截至12月15日记者发稿时，12月以来已有超过520家上市公司 接待机构调研。从单家公司情况看，杰瑞股份、伟创电气、广联航空3家公司同时期均接待了超100家机 构调研，关注度相对较高；天华新能、伟测科技、三峡旅游、灿芯股份等公司成12月机构调研较为青睐 的标的，涵盖汽车、电子、社会服务等多个行业。 ● 本报记者 胡雨 近期A股市场高位震荡之际，机构调研上市公司热情不减，部分市场热门板块公司尤其受到关注。Wind 数据显示，截至12月15日中国证券报记者发稿时，12月以来已有超过520家上市公司获得机构调研，合 并告吹的中科曙光、海光信息以及商业航天概念股超捷股份等关注度居前，机械、电子、汽车、基础化 工等行业标的也受到机构密集调研。 对于后市相关领域投资机遇，业内人士认为，2025年是人形机器人批量应用元年，建议关注核心供应 商；可回收火箭的发射试验突破，给行业底层逻辑带来明确拐点；AI硬件尤其值得关注，重点配置TPU 产业链特别是光模块、PCB、OCS、光纤供应商等，此外关注硬件端紧缺环节的存储芯片、AI电力等。 多家热门公司受机构青睐 从机构12月调研上市公司路径看 ...

北京商报讯（记者 陶凤 王天逸）12月15日，中科曙光官方发文称，在2025年网络安全攻防演习与重保 值守期间，曙光云完成了多地政务云的技术保障与现场支撑工作，近期获得河北、江西等地政府部门感 谢信，对曙光云运维服务团队在关键时期的专业保障表示高度认可。 ...

Group 1: Institutional Research on Popular Companies - The top twenty companies with the highest number of institutional research visits in the past 30 days include Luxshare Precision, Haiguang Information, Zhongke Shuguang, Jereh, and Huichuan Technology [11] - In the last five days, the most popular companies for institutional research were Haiguang Information, Zhongke Shuguang, Weichuang Electric, Superjet, and Shenghong Technology [11] - Among the top twenty companies in the past 30 days, 13 companies had 10 or more rating agencies involved [11] Group 2: Major Shareholder Increase in A-Share Companies - From December 8 to December 12, 2025, two A-share companies announced significant shareholder increases, with Inpai Si planning to increase its holdings by an amount that represents more than 1% of the market value on the announcement date [18] - From January 1 to December 12, 2025, a total of 307 companies announced shareholder increases, with 77 of them having 10 or more rating agencies involved [19] Group 3: A-Share Company Buyback Situation - Between December 8 and December 12, 2025, 50 companies announced buyback progress, with 13 having 10 or more rating agencies involved [22] - Four companies are recommended for attention based on their buyback amounts exceeding 1% of their market value on the announcement date, including Naxin Micro, Midea Group, SF Holding, and China Merchants Jinling [22] - From January 1 to December 12, 2025, a total of 1,830 companies announced buyback progress, with 356 having 10 or more rating agencies involved [24]

近10日内国企改革（399974）指数成份股做了调整，新纳入了2只股票，剔除了2只股票。 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成 投资建议。 证券之星消息，12月15日，国企改革（399974）指数报收于1852.53点，跌0.25%，成交1227.97亿元， 换手率0.63%。当日该指数成份股中，上涨的有41家，中国卫星以6.01%的涨幅领涨，下跌的有56家， 中科曙光以3.9%的跌幅领跌。 国企改革（399974）指数十大成份股详情如下： 资金流向方面，国企改革（399974）指数成份股当日主力资金净流出合计44.59亿元，游资资金净流入 合计20.26亿元，散户资金净流入合计24.33亿元。成份股资金流向详情见下表： ...

Core Insights - As of December 15, a total of 687 stocks in the Shanghai and Shenzhen markets have experienced net outflows of main funds for five consecutive days or more [1] - ST Jinglan has the longest streak of net outflows, with 26 consecutive days, while Jin Gu shares follow with 20 days [1] - Tianfu Communication has the highest total net outflow amount, with 4.516 billion yuan over five days, followed by Changying Precision with 4.123 billion yuan [1] Summary by Category Net Outflow Duration - ST Jinglan: 26 days of net outflow [4] - Jin Gu shares: 20 days of net outflow [1] Total Net Outflow Amount - Tianfu Communication: 4.516 billion yuan over 5 days [1] - Changying Precision: 4.123 billion yuan over 5 days [1] - Heertai: 4.056 billion yuan over 7 days [1] - Aerospace Development: 3.937 billion yuan over 7 days [1] Proportion of Net Outflow to Transaction Amount - ST Zhengping has the highest proportion of net outflow, with a 36.95% drop over 8 days [1] - Other notable stocks with significant net outflow proportions include Heertai and Changying Precision [1] Cumulative Price Change - ST Jinglan: -4.49% [4] - Tianfu Communication: -11.52% [1] - Changying Precision: -18.64% [1] - Heertai: -24.47% [1]

Key Points - The main focus of the article is on the significant outflow of capital from the top 20 stocks as of December 15, with notable amounts being withdrawn from various companies [1] Group 1: Capital Outflow - The largest capital outflow was observed in Changying Precision, with a total of 1.266 billion yuan [1] - Luxshare Precision followed closely with an outflow of 1.114 billion yuan [1] - Aerospace Development experienced a capital outflow of 916 million yuan [1] Group 2: Other Notable Companies - Sunshine Power saw an outflow of 870 million yuan [1] - Industrial Fulian had a capital outflow of 751 million yuan [1] - Zhongke Shuguang experienced an outflow of 658 million yuan [1] Group 3: Additional Companies - Sanhua Intelligent Control had an outflow of 570 million yuan [1] - Shenghong Technology saw a capital outflow of 546 million yuan [1] - Huagong Technology experienced an outflow of 510 million yuan [1] Group 4: Further Capital Movements - ZTE Corporation had a capital outflow of 497 million yuan [1] - TBEA saw an outflow of 475 million yuan [1] - Heertai experienced a capital outflow of 472 million yuan [1] Group 5: Remaining Companies - Aerospace Power had an outflow of 460 million yuan [1] - Moer Thread-U saw a capital outflow of 451 million yuan [1] - Yongding Co. experienced an outflow of 442 million yuan [1] Group 6: Final Companies - Bona Film Group had a capital outflow of 437 million yuan [1] - Huayou Cobalt experienced an outflow of 415 million yuan [1] - Changxin Bochuang saw an outflow of 415 million yuan [1] - Cambridge Technology had a capital outflow of 413 million yuan [1] - Zijin Mining experienced an outflow of 390 million yuan [1]