Core Viewpoint - The main investment logic in A-shares for 2026 is centered around price increases, where rising prices of certain goods and services are expected to lead to higher stock prices for related companies, as increased selling prices enhance profitability and provide support for stock prices [1][10]. Price Increase Concept - Market expert Peng Zu has identified 2026 as a "big year" for price increases, emphasizing the significance of this trend in investment strategies [2][11]. - The most resilient sectors benefiting from price increases include computing power, cloud services, and optical fiber, all driven by the demand surge from AI applications [3][12]. - Year-to-date, stocks related to computing power and cloud services, such as Wangsu Technology, have seen significant gains, with an increase of over 110% since the beginning of the year [3][13]. Optical Fiber Sector - The optical fiber sector has also experienced substantial price increases, with monthly price rises exceeding 75% since the beginning of 2026, reaching an average price of over 40 yuan per core kilometer, with some manufacturers quoting prices as high as 50 yuan per core kilometer [3][13]. - Companies like Yangtze Optical Fibre and Hengtong Optic-Electric have seen their stock prices rise significantly due to these trends [3][13]. Chemical Sector - The chemical sector has emerged as a strong performer, with companies like Runtu Co., Ltd. seeing their stock prices nearly double since January 19, 2026, driven by rising prices of key products [4][14]. - Baichuan Co., Ltd. has also reported significant price increases for its products, with TMP prices soaring from over 8,000 yuan per ton at the end of 2025 to 15,000 yuan per ton by February 2026, enhancing profit expectations [5][15]. Demand and Supply Dynamics - The recovery in downstream demand from sectors like real estate and new energy is driving increased demand for chemical raw materials, while industry capacity reductions and rising raw material costs are forcing collective price increases [6][14]. - The ongoing supply-demand imbalance in sectors such as computing power, cloud services, and optical fiber is expected to persist, supporting the price increase logic [8][17]. Institutional Investment Trends - Institutional investors are likely to remain engaged, with expectations of continued accumulation of leading stocks in the computing power and optical fiber sectors, as they have shown confidence in the sustainability of price increases [9][18]. - Following the Spring Festival, there is an anticipated influx of capital into A-shares, particularly favoring sectors with strong price increase narratives [9][18]. Policy and Industry Support - Post-Spring Festival, policies supporting the "East Data West Computing" project and AI industry are expected to further stimulate demand in computing power, cloud services, and optical fiber sectors [9][18].

Group 1 - The Xinhua 500 Index (989001) closed at 5266.19 points on February 13, with a decline of 1.28% [1] - The index experienced fluctuations, reaching a high of 5316.72 points and a low of 5263.41 points during the trading session [3] - The total trading volume of constituent stocks for the day was reported at 662.6 billion yuan [3] Group 2 - Among the constituent stocks, Hangfa Power reached the daily limit increase, while Hangfa Control and Enjie shares also saw significant gains [3] - Conversely, Zhongyuan Marine Energy led the decline with a drop of 9.50%, followed by Maiwei Shares and Hengtong Optic-Electric, which also experienced notable decreases [3]

Core Viewpoint - The data indicates significant outflows of main funds from various stocks, highlighting potential investment risks in the affected sectors. Group 1: Stock Outflows - The top stock with the largest outflow is Liou Co., with a fund outflow of 1.17 billion [1] - Zijin Mining follows closely with an outflow of 1.125 billion [1] - Bona Film Group experienced an outflow of 974 million [1] - Jiecheng Co. had a fund outflow of 914 million [1] - BlueFocus Media saw an outflow of 860 million [1] Group 2: Sector Analysis - The internet services sector, represented by Liou Co. and Wangsu Science & Technology, shows notable outflows of 1.17 billion and 596 million respectively [1][2] - The cultural media sector, including Bona Film Group and Jiecheng Co., experienced significant outflows totaling 1.888 billion [1][2] - The battery sector, represented by Ningde Times, had an outflow of 616 million, indicating potential concerns in this industry [1][2] - The photovoltaic equipment sector, with companies like Xiexin Integration and Sunshine Power, also faced outflows of 569 million and 501 million respectively [1][2] Group 3: Performance Metrics - Liou Co. had a slight increase in stock price by 1.21% despite the outflow [2] - In contrast, Jiecheng Co. experienced a significant decline of 11.51% alongside its outflow [2] - The overall trend shows that many companies with high outflows also faced negative stock performance, indicating a correlation between fund outflows and stock price declines [2][3]

Group 1 - The A-share market saw a widespread decline in CPO concept stocks, with notable drops in several companies [1] - Hengtong Optic-Electric fell by 7%, while Changxin Bochuang and Jieput fell over 6% [1] - Dekeli and Changfei Optical Fiber experienced declines of over 5%, and Tiantong Co., Hengdong Light, and Taicheng Light dropped over 4% [1] Group 2 - Guangku Technology, Tianfu Communication, Shijia Photon, Robot Technology, Yongding Co., and Zhongtian Technology all saw declines exceeding 3% [1]

Group 1 - The core viewpoint of the news highlights a decline in the stock prices of optical fiber and computing power hardware companies, with significant drops observed in specific companies [1] - Companies such as Longi Fiber, Hengtong Optic-Electric, and Tianfu Communication experienced declines exceeding 5% in their stock prices [1] - Other companies in the sector, including Robotech, Shijia Photon, and Taicheng Light, also followed the downward trend in stock performance [1]

Core Viewpoint - The South Korean Trade Commission has made a final affirmative ruling on anti-dumping measures against single-mode optical fibers originating from China, recommending a five-year anti-dumping duty of 43.35% on specific Chinese companies and other manufacturers/exporters [1]. Group 1: Anti-Dumping Investigation - On March 7, 2025, South Korea initiated an anti-dumping investigation on single-mode optical fibers from China, with the investigation period set from July 1, 2023, to June 30, 2024, and the damage investigation period from January 1, 2021, to December 31, 2024 [2]. - On September 19, 2025, South Korea's Ministry of Economy and Finance decided to impose a temporary anti-dumping duty on the involved Chinese products for a period of four months [2]. - The temporary anti-dumping duty was extended by two months on December 30, 2025, changing the duration from four months to six months, now set from September 19, 2025, to March 18, 2026 [2]. Group 2: Affected Companies - The companies affected by the anti-dumping duties include Hengtong Optic-Electric Co., Ltd., Yangtze Optical Fibre and Cable Joint Stock Limited Company, and Hangzhou Jinxingtong Optical Fiber Technology Co., Ltd., along with other Chinese manufacturers/exporters [1]. - The products under investigation fall under South Korea's tax code 9001.10.0000, excluding low-loss fiber bundles, cables, and single-mode optical fibers specified as G.652.D primarily used for optical devices [1].

Core Viewpoint - The wind power industry is experiencing unsustainable "involution" competition characterized by low-price disorder, necessitating a shift towards value enhancement through technological innovation [1][4]. Group 1: Industry Trends - The cost of submarine cables accounts for approximately 10% of the total investment in offshore wind projects, highlighting their significance [1][4]. - Offshore wind projects are increasingly adopting higher voltage submarine cables, such as 66 kV collection cables and 330 kV or 500 kV direct current export cables, to improve efficiency and reduce costs [2][5]. - The Guangdong Yangjiang Sanshan Island offshore wind flexible direct current transmission project, which includes a 500 kV offshore converter station and a 115 km long 500 kV direct current export cable, is set to commence in April 2025 [2][5]. Group 2: Competitive Landscape - The domestic market for medium and low voltage submarine cables is highly competitive, with numerous manufacturers and new entrants [1][4]. - Major suppliers of 500 kV ultra-high voltage submarine cables in China include Zhongtian Technology, Oriental Cable, and Hengtong Optic-Electric, indicating a concentrated supply chain [2][5]. - High voltage submarine cables offer higher added value, leading to better performance compared to medium and low voltage cables [2][5]. Group 3: Technological Innovation - The insulation materials for high voltage submarine cables present significant technical challenges, with high dielectric performance and cleanliness requirements [3][6]. - Domestic companies are making strides in the localization of insulation materials, with Hengtong Optic-Electric developing 220 kV cables using domestically sourced insulation materials [3][6]. - Zhongtian Technology is also working on trials for domestic insulation materials, achieving breakthroughs in key materials [3][6].

Core Viewpoint - The report from GF Securities indicates a significant increase in the price of G.652.D single-mode optical fibers in China, with prices exceeding 40 yuan per core kilometer in January 2026, marking a nearly seven-year high, driven by strong demand from both data centers and telecommunications sectors [1] Demand Side - The demand for optical fibers and cables is rapidly increasing due to the growth of data centers and special products, with a notable recovery in telecommunications demand [2] - AI data center demand is driving both volume and price increases for optical fibers and cables, with applications in data center ScaleOut scenarios leading to growth in transmission channels and fiber counts [2] - The ongoing Russia-Ukraine conflict is generating substantial demand for fiber optic drones, with deployment expected by mid-2024, further boosting demand [2][3] Supply Side - The production capacity of optical fiber preforms remains high, but AI and special products are encroaching on traditional G.652.D fiber capacity [4] - The majority of global optical fiber preform capacity is controlled by leading domestic, Japanese, and American manufacturers, and current production levels are at full capacity, making it difficult to alleviate supply constraints in the short term [4] - The introduction of high-value products like G.657.A1 and G.657.A2 fibers is expected to further strain traditional fiber production capacity, as these products share production lines with G.652.D fibers but have higher technical demands [4] Investment Recommendations - The report suggests focusing on the optical fiber and cable sector due to improving supply-demand dynamics and the potential for high-value product development [4] - Companies such as Yangtze Optical Fibre and Cable (601869.SH), Hengtong Optic-Electric (600487.SH), Zhongtian Technology (600522.SH), and FiberHome Technologies (600498.SH) are highlighted as key players to watch in this sector [5]

Content: --------- <doc id='2'>金 融 工 程 研 究 证 券 研 究 报 告 融 资 融 券 周 报</doc> <doc id='9'>1. 市场数据概览 上周（2 月 4 日-2 月 10 日）A 股市场主要指数多数上涨，其中上证 50 涨幅最大， 上涨了 1.74%；创业板指跌幅最大，下跌了 0.13%。此外，上证综指上涨 1.49%， 深证成指上涨 0.59%，科创 50 上涨 0.03%，沪深 300 上涨 1.38%，中证 500 上 涨 0.24%。</doc> <doc id='10'>表 1：A 股市场主要指数上周表现 | 指数名称 | 2 月 3 日收盘价 | 2 月 10 日收盘价 | 周涨跌幅(%) | | --- | --- | --- | --- | | 上证综指 | 4067.74 | 4128.37 | 1.49 | | 深证成指 | 14127.11 | 14210.63 | 0.59 | | 创业板指 | 3324.89 | 3320.54 | -0.13 | | 科创 50 | 1471.07 | 1471.50 | 0.03 | | 沪深 300 | 4660.11 | 4724.30 | 1.38 | | 上证 50 | 3034.58 | 3087.41 | 1.74 | | 中证 500 | 8286.70 | 8306.44 | 0.24 | 资料来源：同花顺，渤海证券研究所 图 1：近一年沪深 300 收盘价与融资买入额占成交额比例</doc> <doc id='12'>资料来源：同花顺，渤海证券研究所 2 月 10 日，沪深两市两融余额为 26,517.83 亿元，较上周减少 459.93 亿元。其 中融资余额为 26,350.49 亿元，较上周减少 460.03 亿元；融券余额为 167.34 亿 元，较上周增加 0.10 亿元。</doc> <doc id='13'>表 2：三市融资融券余额 | 日期 | 沪深京三市余额 | 沪深两市余额 | 沪市余额 | 深市余额 | 京市余额 | 融资余额 | 融券余额 | | --- | --- | --- | --- | --- | --- | --- | --- | | | （亿元） | （亿元） | （亿元） | （亿元） | （亿元） | （亿元） | （亿元） | | 2026-02-04 | 26,928.72 | 26,841.25 | 13,598.65 | 13,242.60 | 87.47 | 26,671.51 | 169.74 | | 2026-02-05 | 26,808.60 | 26,721.87 | 13,547.70 | 13,174.17 | 86.73 | 26,553.94 | 167.93 |</doc> <doc id='15'>| 2026-02-06 | 26,636.60 | 26,549.98 | 13,470.36 | 13,079.62 | 86.62 | 26,383.84 | 166.14 | | --- | --- | --- | --- | --- | --- | --- | --- | | 2026-02-09 | 26,644.00 | 26,556.13 | 13,475.12 | 13,081.01 | 87.87 | 26,387.82 | 168.31 | | 2026-02-10 | 26,604.75 | 26,517.83 | 13,459.14 | 13,058.69 | 86.92 | 26,350.49 | 167.34 | 资料来源：同花顺，渤海证券研究所 图 2：近期融资业务情况（亿元） 图 3：近期融券业务情况（亿元）</doc> <doc id='24'>2 月 10 日，融资融券个人投资者数量为 798.23 万名，较上周增长 0.24%；融资 融券机构投资者数量为 51,114 家，较上周增长 0.11%。有融资融券负债的投资者 数量为 1,901,935 名，较上周下降 0.97%。户均融资融券余额为 1,398,825 元， 较上周减少 10,417 元。有融资融券负债的投资者数量占全体融资融券投资者数 量的占比为 23.68%，较上周减少 0.29 个百分点。2 月 4 日-2 月 10 日每日平均 参与融资融券交易的投资者数量为 432,017 名，较前一周下降 17.79%。</doc> <doc id='28'>2. 行业融资融券特征 从申万一级行业来看，煤炭、综合和轻工制造等行业涨幅较大，有色金属、通信 和国防军工等行业跌幅较大。</doc> <doc id='29'>资料来源：同花顺，渤海证券研究所 融资方面，传媒、综合和环保行业融资净买入额较多，有色金属、通信和非银金 融行业融资净买入额较少。</doc> <doc id='32'>资料来源：同花顺，渤海证券研究所 融券方面，上周传媒、煤炭和机械设备行业融券净卖出额较多，有色金属、食品 饮料和国防军工行业融券净卖出额较少。</doc> <doc id='35'>上周融资买入额占成交额比例较高的行业为非银金融、通信和电子，较低的行业 为纺织服饰、轻工制造和建筑材料；融资余额占流通市值比例较高的行业为计算 机、通信和国防军工，较低的行业为石油石化、银行和煤炭。</doc> <doc id='37'>行业名称 融资买入额占成交额(%) 较上周变化(pct.) 融资余额占流通市值(%) 较上周变化(pct.) 非银金融 11.13 0.10 3.04 -0.11 通信 10.57 -0.46 3.42 -0.13 电子 9.17 -0.14 3.13 -0.03 国防军工 8.73 -0.02 3.28 -0.03 计算机 8.63 -0.05 4.09 -0.02 电力设备 8.50 0.06 2.95 -0.07 有色金属 8.40 -1.14 2.76 -0.05 钢铁 8.13 -0.47 1.71 -0.08 银行 7.94 -1.01 0.82 -0.05 传媒 7.89 0.14 3.07 -0.04 煤炭 7.78 -0.79 0.88 -0.10 公用事业 7.74 -0.30 1.73 -0.02 美容护理 7.72 1.11 2.56 -0.12 汽车 7.72 0.01 2.97 -0.08 家用电器 7.67 0.32 2.01 -0.12 医药生物 7.61 -0.37 2.74 -0.11 机械设备 7.38 0.03 2.51 -0.07 建筑装饰 7.35 -0.83 2.37 -0.03 房地产 7.27 -0.45 3.05 -0.17 基础化工 7.25 -0.36 2.31 -0.09 综合 7.17 0.20 2.84 -0.14 农林牧渔 6.84 -0.46 2.73 -0.08 表 3：上周标的券所属行业融资情况</doc> <doc id='39'>| 交通运输 | 6.64 | -1.07 | 1.38 | -0.09 | | --- | --- | --- | --- | --- | | 食品饮料 | 6.62 | -0.13 | 1.16 | -0.05 | | 石油石化 | 6.40 | -0.70 | 0.66 | -0.03 | | 环保 | 6.32 |

Summary of Key Points Industry Involved - The document pertains to the optical fiber industry, specifically focusing on single-mode optical fibers produced in China [1]. Core Points and Arguments - On January 22, 2026, the Korea Trade Commission issued a final ruling on anti-dumping measures against single-mode optical fibers originating from China [1]. - The ruling suggests that the Ministry of Economy and Finance of South Korea impose a five-year anti-dumping duty on specific Chinese companies, including: - Hengtong Optic-Electric Co., Ltd. and its affiliates - Yangtze Optical Fibre and Cable Joint Stock Limited Company and its affiliates - Hangzhou Jinxingtong Optical Fiber Technology Co., Ltd. and its affiliates - Other Chinese manufacturers/exporters [1]. - The proposed anti-dumping duty rate is set at 43.35% for the mentioned companies [1]. Other Important Content - The case involves products under South Korea's tax code 9001.10.0000, excluding low-loss fiber bundles, cables, and single-mode optical fibers specified as G.652.D, which are primarily used for optical equipment [2].