Content: --------- <doc id='1'>大额买入与资金流向跟踪（20250922-20250926） [Table_Authors] 郑雅斌(分析师) 本报告导读： 参考团队前期发布的专题报告选股因子系列研究（五十六、五十七），本报告旨在通 过交易明细数据构建相关指标，跟踪大额买入和净主动买入。</doc> <doc id='2'>投资要点：</doc> <doc id='3'>| | 021-23219395 | | --- | --- | | | zhengyabin@gtht.com | | 登记编号 | S0880525040105 | | | 张耿宇(分析师) | | | 021-23183109 | | | zhanggengyu@gtht.com | | 登记编号 | S0880525040078 |</doc> <doc id='4'>[Table_Report] 相关报告 量化择时和拥挤度预警周报（20250928） 2025.09.28 高频选股因子周报（20250922-20250926） 2025.09.28 低频选股因子周报（2025.09.19-2025.09.26） 2025.09.27 国内权益资产震荡，资产配置策略整体回调 2025.09.26 绝对收益产品及策略周报（250915-250919） 2025.09.24 金 融 工 程 金 融 工 程 周 报 金融工程 /[Table_Date] 2025.09.30 [Table_Summary] 个股大额买入跟踪与净主动买入跟踪。近 5 个交易日大额买入排名 前 5 的个股为：华泰股份、美凯龙、联美控股、启迪环境、酒钢宏 兴；近 5 个交易日净主动买入排名前 5 的个股为：鄂尔多斯、中信 特钢、桂冠电力、南钢股份、京泉华。（本周报中，近 5 个交易日特 指 20250922 至 20250926。） 行业大额买入与净主动买入跟踪。近 5 个交易日大额买入排名前 5 的中信一级行业为：银行、石油石化、非银行金融、钢铁、房地产； 近 5 个交易日净主动买入排名前 5 的中信一级行业为：银行、石油 石化、农林牧渔、房地产、电力及公用事业。 ETF 大额买入跟踪与 ETF 净主动买入跟踪。近 5 个交易日大额买 入排名前 5 的 ETF 为：嘉实中证 500ETF、南方标普中国 A 股大盘 红利低波 50ETF、易方达中证红利 ETF、嘉实中证稀土产业 ETF、 易方达沪深 300ETF；近 5 个交易日净主动买入排名前 5 的 ETF 为： 富国创业板 ETF、嘉实中证新能源 ETF、华夏中证内地低碳经济主 题 ETF、广发创业板 ETF、鹏华中证国防 ETF。 风险提示。因子失效风险，模型误设风险，市场系统性风险。</doc> <doc id='6'>| 1. | 跟踪指标计算说明 3 | | --- | --- | | 2. | 个股大额买入与资金流向跟踪 3 | | 3. | 宽基指数大额买入与资金流向跟踪 3 | | 4. | 行业大额买入与资金流向跟踪 4 | | 5. | ETF 大额买入与资金流向跟踪 5 | | 6. | 风险提示 5 |</doc> <doc id='7'>1. 跟踪指标计算说明 本文使用大买单成交金额占比和净主动买入金额占比，跟踪个股、宽 基指数、行业和 ETF 的大额买入与资金流向。 大买单成交金额占比刻画了大资金的买入行为。根据逐笔成交数据中 的叫买和叫卖序号，可将逐笔成交数据还原为买卖单数据，并按照每单的 成交量筛选得到大单，计算其中大买单的成交金额占当日总成交金额的比 例。 净主动买入金额占比刻画了投资者的主动买入行为。根据逐笔成交数 据中的买卖标志，可界定每笔成交属于主动买入还是主动卖出。将两者的 成交金额相减，可得净主动买入金额，并计算占当日总成交金额的比例。</doc> <doc id='8'>2. 个股大额买入与资金流向跟踪 下表为全市场大买单成交金额占比过去 5 日均值排名前 10 的股票。</doc> <doc id='9'>| | 表 1 大买单成交金额占比前 10 股票列表（20250922-20250926） | | | | | --- | --- | --- | --- | --- | | 排序 | WIND 代码 | 股票名称 | 指标值 | 时序分位数 | | 1 | 600308.SH | 华泰股份 | 89.1% | 100.0% | | 2 | 601828.SH | 美凯龙 | 88.9% | 99.2% | | 3 | 600167.SH | 联美控股 | 88.7% | 98.8% | | 4 | 000826.SZ | 启迪环境 | 88.6% | 99.6% | | 5 | 600307.SH | 酒钢宏兴 | 87.9% | 95.9% | | 6 | 601996.SH | 丰林集团 | 87.7% | 98.0% | | 7 | 601366.SH | 利群股份 | 87.7% | 99.2% | | 8 | 002453.SZ | 华软科技 | 87.7% | 99.6% | | 9 | 600935.SH | 华塑股份 | 87.5% | 97.6% | | 10 | 600606.SH | 绿地控股 | 87.3% | 99.2% | 资料来源: Wind，国泰海通证券研究 下表为部分全市场净主动买入金额占比过去 5 日均值排名前 10 的股票。</doc> <doc id='10'>| | 表 2 净主动买入金额占比前 10 股票列表（20250922-20250926） | | | | | --- | --- | --- | --- | --- | | 排序 | WIND 代码 | 股票名称 | 指标值 | 时序分位数 | | 1 | 600295.SH | 鄂尔多斯 | 17.9% | 98.4% | | 2 | 000708.SZ | 中信特钢 | 17.4% | 100.0% | | 3 | 600236.SH | 桂冠电力 | 15.2% | 98.4% | | 4 | 600282.SH | 南钢股份 | 12.7% | 95.1% | | 5 | 002885.SZ | 京泉华 | 11.6% | 100.0% | | 6 | 600323.SH | 瀚蓝环境 | 11.5% | 95.1% | | 7 | 600176.SH | 中国巨石 | 11.5% | 99.2% | | 9 | 603037.SH | 凯众股份 | 11.0% | 100.0% | | 10 | 603091.SH | 众鑫股份 | 10.9% | 99.2% | 资料来源: Wind，国泰海通证券研究</doc> <doc id='11'>3. 宽基指数大额买入与资金流向跟踪 本文使用整体法计算主要宽基指数的大买单成交金额占比和净主动买 入金额占比，列于下表。</doc> <doc id='12'>表 3 宽基指数大额买入与资金流向（20250922-20250926） | | | 大买单成交金额占比 | | 净主动买入金额占比 | | --- | --- | --- | --- | --- | | | 5 日均值 | 5 日均值分位数 | 5 日均值 | 5 日均值分位数 | | 上证指数 | 72.3% | 2.9% | -3.6% | 21.6% | | 上证 50 | 70.2% | 7.3% | 1.1% | 18.4%

Core Insights - The A-share listed paper companies in China reported a significant decline in revenue and profit for the first half of 2025, with total revenue of 91.647 billion yuan and total profit of only 64 million yuan, indicating a challenging operating environment for the industry [1][4][13] Revenue Summary - A total of 27 listed paper companies reported revenues exceeding 2 billion yuan, with 19 companies achieving revenues over 10 billion yuan, representing 70.37% of the total [4] - The revenue of the top two companies, Sun Paper and Shanying International, was 19.113 billion yuan and 13.842 billion yuan respectively, while Chenming Paper's revenue dropped to 2.107 billion yuan due to production line maintenance [4][5] - 14 companies experienced revenue growth, accounting for 51.85% of the total, a decrease from 64.29% in the previous year [5] Profit Summary - The total profit for the 27 listed paper companies was only 64 million yuan, a drastic drop from 4.385 billion yuan in the same period last year, with 24 companies remaining profitable [8][9] - Sun Paper led the profit rankings with 1.78 billion yuan, while 10 companies reported profits exceeding 100 million yuan, a decrease of one company compared to the previous year [8][9] - 15 companies saw a decline in net profit, with 3 companies experiencing losses, the most significant being ST Chenming with a net loss of 3.858 billion yuan [9][10] Industry Trends - The paper industry is facing a "ice-fire two重天" situation, with production increasing but profits declining due to supply-demand imbalances and high costs [13] - The production of mechanical paper and paperboard in China increased by 3.2% in the first half of 2025, but the revenue for the paper and paper products industry decreased by 2.3% [13] - Leading companies like Sun Paper and Xianhe Co. are focusing on integrated operations to mitigate cost pressures and enhance profitability [13][14]

Core Viewpoint - Huatai Paper has been selected as the only enterprise-level national pilot project in Shandong Province for the "2025 Trusted Data Space Innovation Development Pilot List," showcasing its leadership in digital transformation within the traditional paper manufacturing industry [1][2]. Group 1: Digital Transformation and Innovation - Huatai Paper, a leading newsprint producer, utilizes 4,500 tons of wood chips daily, previously relying on manual scheduling for raw material transport, which led to significant discrepancies in weight [1]. - The implementation of the "Industry Brain" has enabled Huatai to achieve intelligent manufacturing and a smart supply chain model, addressing issues of information traceability and reducing losses during transportation [2]. - The "Industry Brain" integrates detailed logistics data, allowing for full-process digital control of transportation, thus eliminating previous regulatory blind spots [2]. Group 2: Cost Efficiency and Resource Optimization - The introduction of the "Industry Brain" has resulted in a cost savings of over 22 million yuan annually by preemptively addressing production issues such as fluctuations in pulp concentration and paper defects [2]. - Huatai Group has invested over 50 million yuan in the development of the "Industry Brain" and collaborates with universities to enhance the application of industry models [2]. - The first phase of the "Industry Brain" project is operational, with a second phase focusing on smart warehousing, marketing, and financial models expected to launch by June next year, potentially saving an additional 100 million yuan for upstream and downstream enterprises [2]. Group 3: Strategic Goals and Future Outlook - The company aims to leverage its status as a national pilot to enhance cloud computing, data utilization, and intelligence, thereby breaking down data barriers in the industry chain [2]. - The focus on data as a core asset for AI and algorithm development positions Huatai Paper to strengthen its competitive edge in the industry [2].

Group 1 - The paper industry sector saw an increase of 1.02% on September 11, with Qingshan Paper leading the gains [1] - The Shanghai Composite Index closed at 3875.31, up 1.65%, while the Shenzhen Component Index closed at 12979.89, up 3.36% [1] - Qingshan Paper's stock price rose by 10.14% to 3.80, with a trading volume of 2.54 million shares and a transaction value of 9.61 billion [1] Group 2 - The paper sector experienced a net outflow of 317 million from institutional investors, while retail investors saw a net inflow of 252 million [2] - Among individual stocks, Yibin Paper had a net inflow of 204.37 thousand from institutional investors, but a net outflow of 585.27 thousand from retail investors [3] - The overall trading activity in the paper sector indicated mixed investor sentiment, with some stocks experiencing significant outflows while others attracted retail interest [3]

Group 1 - Guangxi Huatai Bio Based New Materials Co., Ltd. has been established with a registered capital of 10 million yuan [1] - The company is fully owned by Huatai Co., Ltd. (600308) [1] - The business scope includes research and development, manufacturing, and sales of bio-based materials [1] Group 2 - The company is located in Yulin City, Guangxi Zhuang Autonomous Region, specifically in Bobai County [2] - The legal representative of the company is Xie Shibing [2] - The company is classified under the other manufacturing industry (C41) [2]

Core Viewpoint - Huatai Co., Ltd. (600308) emphasizes stable production and operations, ensuring compliance with laws and regulations in its dealings with controlling shareholders, and maintaining transparency in related transactions [1] Group 1 - The company asserts that all related transactions are priced based on market principles and do not harm the interests of the listed company or minority shareholders [1] - The company is committed to enhancing shareholder rights through improved performance, better information disclosure, and reasonable dividends to boost investor confidence [1] - Future efforts will focus on measures to enhance the company's market performance [1]

Core Insights - The 2025 Global Industrial Internet Conference emphasizes the transition of artificial intelligence development from technology-driven to demand-driven applications, showcasing significant advancements in China's industrial internet sector [1] - The integration of industrial internet and artificial intelligence is seen as a key driver for digital transformation and high-quality development in traditional industries [1][2] Group 1: Industrial Internet and AI Integration - The industrial internet serves as a crucial infrastructure for the deep integration of new information and communication technologies with the industrial economy, facilitating digital transformation [2] - Artificial intelligence is enhancing the capabilities of the industrial internet, providing a foundation of data, digital scenarios, and computational power [2] - The Chinese government is actively supporting the integration of AI into strategic planning and business processes to promote intelligent development across industries [2][3] Group 2: Regional Development and Case Studies - Liaoning province, as a major industrial area, is leveraging its resources to drive the digitalization and intelligent transformation of its manufacturing sector [3] - The establishment of an intelligent platform for the textile industry in Liaoning exemplifies the application of industrial internet technologies to enhance efficiency and sustainability [3] Group 3: Innovations and Applications - The conference showcased various innovative applications of industrial internet and AI, including a collaborative platform for the equipment manufacturing industry developed by China Unicom [5] - A robot developed by Siasun Robotics demonstrates advanced capabilities in multi-modal interaction and task execution, highlighting the potential of AI in industrial applications [6] Group 4: Corporate Engagement - Companies like Huatai Co. are actively developing industrial internet platforms to enhance data-driven decision-making and operational efficiency across the supply chain [7] - Spring Power has reported advancements in its industrial internet platform, enabling global collaborative research and development capabilities [8]

Core Insights - The 2025 Global Industrial Internet Conference emphasizes the transition of artificial intelligence development from technology-driven to demand-driven applications, showcasing significant advancements in China's industrial internet sector [1][2] - The integration of industrial internet and artificial intelligence is seen as a key driver for digital transformation and high-quality development in traditional industries [1][2] Industry Development - Industrial internet is a new industrial ecosystem that combines information communication technology with the industrial economy, serving as a crucial support for digital transformation and the integration of the real and digital economies [1][2] - China's industrial internet has shown remarkable progress, with a robust policy framework, continuous technological breakthroughs, and an expanding ecosystem [1][2] Artificial Intelligence Impact - Industrial internet provides a foundational data and digital environment for artificial intelligence, leveraging China's vast industrial scenarios and data resources to drive technological advancements [2] - Conversely, artificial intelligence is reshaping the industrial internet, facilitating digital transformation and intelligent upgrades for enterprises [2] Government Support - The Chinese government has issued policies to support the integration of artificial intelligence into strategic planning and business processes, promoting comprehensive intelligent development across industries [2] Regional Focus - Liaoning province, as a major industrial hub, has significant demand and potential for the digitalization and intelligent transformation of its manufacturing sector [3] - The province has made strides in technology research and application, particularly in the textile industry, by establishing an intelligent platform that enhances collaboration across the supply chain [3] Conference Highlights - The 2025 Global Industrial Internet Conference is held at the China Industrial Museum, symbolizing the blend of traditional industry and modern technology [4] - Various companies showcased their innovations in the integration of industrial internet and artificial intelligence, highlighting practical applications and advancements [4][5] Corporate Initiatives - Companies like Huatai Co. are actively developing industry-specific intelligent solutions through the integration of industrial internet, artificial intelligence, and big data, enhancing operational efficiency and reducing costs [6] - Spring Wind Power has developed a global online collaborative capability for its industrial internet platform, focusing on AI model construction across various business areas [6]

Core Viewpoint - Huatai Co., Ltd. reported a decline in revenue and net profit for the first half of 2025, primarily due to intensified industry competition, falling product prices, and rising costs [1][2]. Financial Performance - In the first half of 2025, Huatai achieved revenue of 6.409 billion yuan, a year-on-year decrease of 1.86%. The net profit attributable to shareholders was approximately 68 million yuan, down 63.13% year-on-year [1][2]. - In Q2 2025, revenue increased by 7.3% to 3.32 billion yuan, but net profit dropped to 7.81 million yuan, a decline of 88.9%. The non-recurring net profit was a loss of 3.65 million yuan, down 106.0% [2]. - The net profit has been declining for three consecutive years, with figures of 427 million yuan, 237 million yuan, and 36 million yuan for 2022, 2023, and 2024 respectively [2]. Industry Challenges - The domestic paper industry is facing dual pressures of demand contraction and supply surplus, leading to significant price drops for key products like newsprint and cultural paper [2][3]. - The cost of wood pulp and chemical auxiliary materials has only slightly decreased, resulting in a decline in paper product gross margins [2]. Strategic Initiatives - To address performance challenges, Huatai is advancing an integrated industrial layout to enhance risk resistance [3]. - The newly established 700,000-ton chemical pulp project commenced production in July 2025, with expectations of gradually reducing costs in the second half of the year [1][3]. - The company is also launching a 300,000-ton specialty "pulp-paper integration" project in October 2024, which includes new production lines for high-yield wood fiber and high permeability paper [4]. Competitive Positioning - The integrated layout aims to improve cost advantages and strengthen bargaining power over upstream pulp suppliers, while maintaining a large inventory of low-cost pulp to mitigate the impact of raw material price increases [4].

Group 1 - The core viewpoint of the article highlights the growth in the number of enterprises in the paper and paper products industry in China, with a total of 8,107 enterprises reported from January to July 2025, marking an increase of 190 enterprises or 2.4% year-on-year [1] - The proportion of the paper and paper products industry enterprises in relation to the total number of industrial enterprises stands at 1.56% [1] - The data indicates a shift in the criteria for scale enterprises, with the threshold for annual main business income raised from 5 million yuan to 20 million yuan since 2011 [1] Group 2 - The report referenced is the "2025-2031 China Paper Industry Market Survey Research and Development Prospects Report" published by Zhiyan Consulting [1] - Zhiyan Consulting is recognized as a leading industry consulting firm in China, specializing in in-depth industry research reports, business plans, feasibility studies, and customized services [2] - The firm emphasizes its commitment to providing comprehensive industry solutions to empower investment decisions through professional insights and market acumen [2]