Group 1 - The Shanghai Composite Index rose by 0.08% to close at 4116.94 points, while the Shenzhen Component Index increased by 0.7% to 14255.12 points, and the ChiNext Index climbed by 0.54% to 3295.52 points as of January 21 [1] - A total of 90 stocks in the A-share market hit the daily limit up, with the strongest stocks being Guangdian Electric (601616), Hunan Silver (002716), and Hongbaoli (002165) [1] - The top three strong stocks had the following performance: Guangdian Electric with 4 consecutive limit ups and a turnover rate of 44.4%, Hunan Silver with 2 consecutive limit ups and a turnover rate of 17.4%, and Hongbaoli with 2 consecutive limit ups and a turnover rate of 39.71% [1] Group 2 - The aluminum metal sector saw a price increase of 5.01%, while zinc metal rose by 4.83%, and the gold concept increased by 3.82% [2] - Other notable sectors included copper metal with a rise of 3.33%, advanced packaging at 3.11%, and co-packaged optics (CPO) at 3.09% [2] - The storage chip sector increased by 2.8%, PCB concept rose by 2.79%, and Foxconn concept and lithography machine both saw an increase of 2.76% [2]

Core Viewpoint - The article discusses the recent performance of the A-share market, highlighting significant gains in technology stocks, particularly in the semiconductor sector, driven by supply shortages and price increases in CPUs and memory chips [1][18]. Group 1: Market Performance - On January 21, the three major indices in the A-share market collectively rose, with the Shanghai Composite Index increasing by 0.08%, the Shenzhen Component Index by 0.70%, and the ChiNext Index by 0.53% [18]. - The total trading volume across the three markets was 26,240 billion, a decrease of 1,804.27 billion from the previous day, with over 300 stocks rising [18]. - A total of 91 stocks hit the daily limit up, with the maximum consecutive limit up reaching 16 [18]. Group 2: Semiconductor Sector - The semiconductor sector saw a significant rebound, with domestic chip stocks surging. Notably, Longxin Technology hit the daily limit up, and several other stocks like Yingfang Micro and Tongfu Microelectronics also reached their daily limits [18]. - The increase in stock prices is attributed to a shortage in memory chips, with U.S. companies like Micron, Seagate, and SanDisk hitting record highs [18]. - Intel and AMD are expected to raise server CPU prices by 10%-15% in 2026, further driving interest in the semiconductor supply chain [2][18]. Group 3: CPU Demand and AI Impact - The demand for CPUs is projected to increase significantly due to the rise of AI agents, with estimates suggesting a need for up to 1,760,899 CPUs in optimistic scenarios for 2024, compared to a global shipment of 3,200 million CPUs [3]. - The article emphasizes that CPUs may become a bottleneck before GPUs in AI applications, as they are crucial for generating and evaluating tasks in reinforcement learning [11]. - A new paradigm proposed in the DeepSeek paper highlights the importance of CPU memory in handling large parameters, suggesting a shift in how AI models are structured [11][12]. Group 4: Material Costs and Industry Outlook - Japanese semiconductor material manufacturer Resonac announced a price increase of over 30% for PCB materials starting March 1, which could impact the overall cost structure in the semiconductor industry [12]. - Goldman Sachs projects a compound annual growth rate of 34% for optical modules from 2026 to 2028, with expected shipments reaching 94 million units by 2028, indicating a positive outlook for the optical communication sector [18].

电子行业主力资金净流入金额居首。 A股主要指数今日（1月21日 ）集体收涨，行业板块涨多跌少，贵金属、能源金属、采掘行业、电机、 半导体、小金属、电子元件等板块涨幅居前，煤炭、酿酒、商业百货、电网设备等板块跌幅居前。 从今日主力资金情况来看，沪深两市全天主力资金净流入56.08亿元。17个行业主力资金净流入，电 子、有色金属、银行、机械设备行业主力资金净流入金额分别为52.2亿元、43.76亿元、21.59亿元、 11.36亿元；非银金融、通信、计算机、交通运输等行业主力资金净流入金额均超5亿元。 14个主力资金净流出行业中，电力设备、国防军工、传媒行业主力资金净流出金额居前，分别为44.51 亿元、28.47亿元、11.42亿元； 农林牧渔、食品饮料、家用电器、商贸零售行业主力资金净流出金额均 超6亿元。 10股获主力资金净流入均超5亿元 从个股看，56股主力资金净流入均超2亿元，10股获主力资金净流入均超5亿元。 新易盛、华天科技、通富微电主力资金净流入分别为12.14亿元、10.87亿元、10.17亿元。 近日，华天科技发布购买资产的进展公告，公司拟通过发行股份及支付现金方式，收购27名交易对方合 计持 ...

| | | | 1月21日涨停封单资金居前的个股 | | | --- | --- | --- | --- | --- | | 代码 | 名称 | 涨停封单额 | 涨停板 | 涨停原因 | | | | (亿元) | 情況 | | | 002931 | 锋龙股份 | 10.36 | 16连板 | 优必选拟入主+机器人 | | 002156 | 通富微电 | 7.32 | 育板 | 年报预增+定增扩产+AMD链+存储封测 | | 000670 | 宮方微 | 7.30 | 2连板 | 重大资产重组+存储芯片+半导体分销 | | 000066 | 中国长城 | 6.11 | 首板 | 业绩减亏+AI服务器+商业航天+央企 | | 000880 | 潍柴重机 | 5.02 | 首板 | 数据中心+发电机组+山东国资 | | 603078 | 江化微 | 4.48 | 2连板 | 复牌+上海国资入主+芯片材料+光刻胶 | | 002185 | 华大科技 | 3.85 | 首板 | 收购华羿微电+功率器件+存储芯片+先进封装 | | 688047 | 龙芯中科 | 3.50 | 首板 | 自主CPU+商业航天 | | 00 ...

Core Viewpoint - The article highlights the trading activities in the Shanghai and Shenzhen stock markets, focusing on the significant inflow and outflow of funds in various sectors and individual stocks, as well as the performance of ETFs and the activity of institutional and retail investors [1][5][12]. Group 1: Trading Volume and Stock Performance - The total trading volume for the Shanghai and Shenzhen Stock Connect reached 321.15 billion, with Haiguang Information and Ningde Times leading in individual stock trading volume [1][2]. - The top stocks by trading volume in the Shanghai Stock Connect included Haiguang Information (3.506 billion) and Sanbai (3.306 billion), while in the Shenzhen Stock Connect, Ningde Times (3.056 billion) and Xinyi Sheng (3.012 billion) topped the list [3][4]. Group 2: Sector Performance - The electronic sector saw the highest net inflow of funds, while sectors such as white liquor, electric grid equipment, and coal experienced significant outflows [5][7]. - The top sectors by net inflow included precious metals (16.53 billion), energy metals (12.94 billion), and industrial machinery (2.99 billion) [6]. Group 3: ETF Trading Activity - The top ETF by trading volume was the CSI 300 ETF from Huatai Baichuan, with a trading amount of 23.2079 billion, reflecting a 70.47% increase from the previous trading day [13]. - The CSI 1000 ETF from GF Securities saw a remarkable trading volume increase of 799.23%, reaching 7.36828 billion [14]. Group 4: Institutional and Retail Investor Activity - Institutional investors showed moderate activity, with notable purchases in stocks like Zhongtung High-tech (316 million) and Dazhu CNC (333 million) [16]. - Retail investors' activity decreased significantly, with a notable drop in the number of participating brokerage firms and net buying scale [18].

Group 1 - On January 21, a total of 42 stocks were involved with institutional investors, with 25 stocks showing net buying and 17 stocks showing net selling [1] - The top three stocks with net buying by institutions were Zhongtung High-tech, Dazhu CNC, and ST Jiaao, with net buying amounts of 305 million, 279 million, and 240 million respectively [1][2] - The top three stocks with net selling by institutions were Tongfu Microelectronics, Hunan Silver, and Fengyuzhu, with net selling amounts of 125 million, 102 million, and 95.56 million respectively [1][3] Group 2 - Zhongtung High-tech had a price increase of 10.00% with a net buying amount of 30,504.10 million [2] - Dazhu CNC experienced a price increase of 20.00% with a net buying amount of 27,864.81 million [2] - ST Jiaao saw a price increase of 4.22% with a net buying amount of 23,952.02 million [2]

二、板块个股主力大单资金 龙虎榜方面，一线游资活跃度明显降低，上榜营业部数量、买入个股数量和净买入规模均大幅减少。通富微电走出4天2板，获两家一线游资（国泰海通证券 成都北一环路、中泰证券湖北分公司）分别买入1.73亿、1.6亿，而两家机构合计卖出1.25亿。中钨高新今日涨停，多路资金联手抢筹，深股通买入3.25亿， 三家机构买入3.16亿，一家一线游资（中泰证券湖北分公司）买入0.59亿。 一、沪深股通前十大成交 今日沪股通总成交金额为1542.31亿，深股通总成交金额为1669.84亿。 | | 沪股通 ( | 1月21日 D | | | --- | --- | --- | --- | | 排名 | 股票代码 | 股票名称 | 成交金额(亿元) | | 1 | 688041 | 海光信息 | 35.06 | | 2 | 668109 | 三十四年 | 33.06 | | 3 | 688256 | 其武纪 | 20.72 | | 4 | 601138 | 工业富联 | 18.42 | | 5 | 600584 | 长电科技 | 18.18 | | 6 | 603986 | 兆易创新 | 16.45 | | ...

中国上市公司网/文 A股今日集体上涨，截至收盘，沪指涨0.08%，深成指涨0.7%，创业板指涨0.54%，北证50指数涨 0.14%，科创50指数大涨3.53%，沪深京三市成交额26236亿元，较上日缩量1805亿元，三市超3000只个 股飘红。 板块题材上，黄金、有色金属、天然气、半导体、CPO、PCB、足球概念股涨幅居前;白酒、电网设 备、煤炭、银行、保险、零售、旅游及酒店、机场航运板块跌幅居前。 盘面上，受国际金价大涨影响，黄金股、有色资源股全线爆发，四川黄金、白银有色等10余股涨停。半 导体、AI算力板块表现强势，海光信息、通富微电、兆易创新创出历史新高，大摩指出DDR4一季度价 格涨幅可能达50%。受美国天然气期货大涨影响，天然气板块临近尾盘亦有所拉升，山东墨龙、中国海 油多股上扬。另一方面，大消费板块今日普遍调整，白酒、零售、旅游方向领跌。尾盘多只宽基ETF成 交持续放大，其中上证50ETF成交超150亿创历史天量，成交量放大同时盘面有所压制。 【4连板】广电电气。 主力净流入板块 连板个股 【16连板】锋龙股份。 【3连板】招金黄金、江化微。 【2连板】京基智农、盈方微、红宝丽、湖南白银、红墙股 ...

Trading Volume Summary - The total trading volume of the Shanghai and Shenzhen Stock Connect today reached 321.215 billion, with Haiguang Information and Ningde Times leading in trading volume for the Shanghai and Shenzhen stock connect respectively [1] - The total trading amount for the Shanghai Stock Connect was 154.231 billion, while the Shenzhen Stock Connect totaled 166.984 billion [2] Top Trading Stocks - In the Shanghai Stock Connect, the top trading stocks included Haiguang Information with 3.506 billion, followed by Zijin Mining and Cambricon Technologies [3] - In the Shenzhen Stock Connect, Ningde Times led with 3.056 billion, followed by Xinyi Technology and Zhongji Xuchuang [3] Sector Fund Flow - The electronic sector saw the highest net inflow of main funds at 16.530 billion, with a net inflow rate of 3.10% [5] - The new energy sector experienced a significant net outflow of 9.631 billion, with a net outflow rate of -3.28% [5] ETF Trading Activity - The top ETF by trading volume was the CSI 300 ETF from Huatai-PB, with a trading amount of 23.2079 billion, reflecting a 70.47% increase from the previous trading day [6] - The CSI 1000 ETF saw a remarkable trading amount of 18.2257 billion, with a 252.46% increase compared to the last trading day [9] Market Performance - Precious metals, energy metals, and oil and gas sectors showed strong performance, while sectors like liquor, power grid equipment, and coal experienced declines [7] Institutional and Retail Investor Activity - Institutional activity was moderate, with notable purchases in Zhongtung High-tech, which saw three institutions buy 316 million, while Tongfu Microelectronics faced selling pressure from two institutions totaling 125 million [11][12] - Retail investor activity showed a significant decrease, with fewer active trading seats and reduced net buying scale [13]

Company Overview - Tongfu Microelectronics is a provider of integrated circuit packaging and testing services, offering a one-stop service from design simulation to packaging and testing for global clients [2][4] - The company operates nine production bases globally, including locations in Jiangsu, Anhui, and Malaysia, employing over 20,000 staff [3] - Major shareholder is Nantong Huada Microelectronics Group, with stable ownership structure [2] Financial Performance - Revenue for 2022, 2023, 2024, and the first three quarters of 2025 were CNY 21.429 billion, CNY 22.269 billion, CNY 23.882 billion, and CNY 20.116 billion respectively [3] - Net profit attributable to shareholders for the same periods were CNY 0.502 billion, CNY 0.169 billion, CNY 0.678 billion, and CNY 0.860 billion [3] - Projected net profit for 2025 is estimated between CNY 1.1 billion and CNY 1.35 billion, indicating a year-on-year growth of 62.34% to 99.24% [11] Investment and Growth Strategy - The company plans to invest CNY 1.0995580 billion to enhance packaging capacity in emerging automotive applications, aiming to add 50.4 million units annually [7][8] - Focus on high-value products and market trends, including advanced packaging technologies like Chiplet and 2D+ [4][5] - The investment projects are aligned with the strategic goal of building a resilient domestic semiconductor supply chain [5][6] Key Technology and Market Position - The company emphasizes the importance of wafer-level packaging as a critical technology for high-performance chips, enhancing signal integrity and reducing latency [9][10] - Plans to strengthen capabilities in advanced packaging to support high-end computing and automotive sectors [10] Investor Engagement - The company held an investor relations activity on January 21, 2026, with participation from various financial institutions [2] - The issuance of shares targets up to 35 specific investors, including asset management companies and qualified foreign institutional investors [7]