Group 1 - The core viewpoint of the news highlights a significant rebound in computing hardware stocks, with notable increases in share prices for several companies [1] - LianTe Technology experienced a nearly 10% increase in stock price, reaching a historical high [1] - Tianfu Communication and Changfei Optical Fiber both saw stock price increases exceeding 8%, also achieving historical highs [1] Group 2 - Other companies such as Shijia Photon, Hengtong Optic-Electric, Dekoli, and Xinyi Sheng also experienced stock price increases, indicating a broader positive trend in the sector [1]

证券之星消息，1月28日通信设备板块较上一交易日上涨0.98%，坤恒顺维领涨。当日上证指数报收于 4151.24，上涨0.27%。深证成指报收于14342.9，上涨0.09%。通信设备板块个股涨跌见下表： | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 688283 | 坤恒顺维 | 59.31 | 16.55% | 6.00万 | | 3.37亿 | | 688668 | 鼎通科技 | 175.77 | 8.74% | 9.17万 | | 15.90亿 | | 688205 | 德科立 | 151.36 | 8.17% | 15.63万 | | 23.23 乙 | | 300570 | 太辰光 | 113.05 | 7.63% | 46.64万 | | 54.78亿 | | 688027 | 園盾軍子 | 639.00 | 7.39% | 5.37万 | | 33.87 亿 | | 601869 | 长飞光纤 | 135.30 | 6.87% | 29.37万 | | 39.5 ...

（文章来源：每日经济新闻） 每经AI快讯，1月28日，光模块(CPO)指数高开，成分股表现活跃。太辰光涨超11%，长芯博创、罗博特 科、天孚通信、德科立等多只个股跟涨。 ...

Group 1 - The core viewpoint of the news highlights the financial performance and trading activities of Dekoli, indicating a significant increase in financing and trading volumes, alongside a notable rise in shareholder numbers [1][2][3] Group 2 - As of January 26, Dekoli's stock price increased by 1.58%, with a trading volume of 923 million yuan. The financing buy-in amount was 123 million yuan, while the financing repayment was 118 million yuan, resulting in a net financing buy of 5.61 million yuan [1] - The total financing and securities lending balance for Dekoli reached 1.56 billion yuan, accounting for 7.11% of its market capitalization, indicating a high level of financing activity compared to the past year [1] - The company reported a revenue of 652 million yuan for the period from January to September 2025, reflecting a year-on-year growth of 8.59%. However, the net profit attributable to shareholders decreased by 47.43% to 40.11 million yuan [2] - Dekoli has distributed a total of 158 million yuan in dividends since its A-share listing [3] - As of September 30, 2025, the number of shareholders increased to 17,300, a rise of 81.68%, while the average number of circulating shares per person decreased by 2.48% to 9,163 shares [2]

Group 1 - The CPO concept stocks in the A-share market experienced a collective decline, with notable drops in companies such as Xinyisheng and Zhongji Xuchuang falling over 6% [1] - Other companies like Tianfu Communication and Hengtong Optics also saw significant declines, with drops exceeding 5% and 4% respectively [1] - The overall trend indicates a bearish sentiment in the CPO sector, impacting multiple stocks negatively [1] Group 2 - Specific stock performance data shows Xinyisheng down by 6.65% with a total market value of 380.1 billion, and a year-to-date decline of 11.24% [2] - Zhongji Xuchuang decreased by 6.12%, with a market capitalization of 647.8 billion and a year-to-date drop of 4.43% [2] - Tianfu Communication fell by 5.58%, holding a market value of 146.8 billion and a year-to-date decline of 6.99% [2]

Group 1 - The core point of the news is the performance of Dekoli, which saw a decline of 5.01% on January 20, with a stock price of 134.90 yuan per share and a total market capitalization of 21.353 billion yuan [1] - Dekoli is based in Wuxi, Jiangsu Province, and specializes in the research, production, and sales of optical transceiver modules, optical amplifiers, and optical transmission subsystems, primarily used in key national development areas such as communication trunk transmission and 5G [1] - The company's main business revenue composition is as follows: transmission-related products account for 75.33%, access and data-related products for 23.54%, and others for 1.13% [1] Group 2 - From the perspective of major fund holdings, one fund under ICBC Credit Suisse holds Dekoli shares, specifically the Science and Technology Innovation 200 ETF, which held 8,107 shares, representing 1.14% of the fund's net value [2] - The Science and Technology Innovation 200 ETF has a current scale of 86.0961 million yuan and has achieved a return of 16.28% this year, ranking 103 out of 5,542 in its category [2] - The fund manager, He Shun, has been in position for 2 years and 94 days, with the fund's total asset scale at 8.558 billion yuan, achieving a best return of 79.5% and a worst return of 7.61% during his tenure [3]

Group 1 - The A-share market saw a decline in CPO concept stocks, with Tian Tong Co. nearing the limit down, Cambridge Technology dropping over 5%, and several other companies experiencing declines of more than 3% [1] - Cambridge Technology recently released a performance forecast, expecting a net profit attributable to shareholders of 252 million to 278 million yuan for the fiscal year 2025, representing a year-on-year increase of 51.19% to 66.79% [1] - For the first three quarters of 2025, Cambridge Technology's net profit attributable to shareholders was 259 million yuan, indicating that the expected net profit for Q4 2025 is projected to be between -7 million to 19 million yuan, which is below analysts' consensus forecast of 139 million yuan [1] Group 2 - Tian Tong Co. experienced a decline of 9.67% with a total market value of 14.2 billion yuan and a year-to-date decline of 12.49% [2] - Cambridge Technology's stock fell by 5.32%, with a total market value of 39 billion yuan and a year-to-date decline of 17.70% [2] - New Yi Sheng's stock dropped by 4.25%, with a total market value of 383.7 billion yuan and a year-to-date decline of 10.41% [2]

Core Insights - The report provides an analysis of the global and Chinese optical module industry, highlighting the product layout of representative companies and a comparative analysis of segmented products. Group 1: Product Layout of Representative Companies - Major Chinese optical module companies have product lines covering transmission rates up to 800G and below, including 10G, 25G, 40G, 50G, 100G, 200G, 400G, and 800G modules [1]. - The table outlines the specific products offered by companies such as Guangxun Technology, Zhongji Xuchuang, and others across various transmission rates, indicating a comprehensive coverage in the optical module market [1]. Group 2: 10G Optical Module Market - The 10G optical module market is mature, primarily featuring XFP and SFP+ modules, with SFP+ being favored for its lower cost, smaller size, and strong compatibility [3]. - 10G data center solutions typically involve 10G switches paired with SFP+ modules and LC fiber jumpers, emphasizing the importance of matching switch rates with corresponding optical modules [3]. Group 3: 40G Optical Module Demand - The 40G optical module, particularly the QSFP+ type, is widely used due to its compact design and ability to meet high-density, high-speed market demands [6]. - Transitioning from 10G to 40G is driven by the need for increased bandwidth and throughput in data centers, with 40G solutions often involving 40G switches and QSFP+ modules [6]. Group 4: 100G Optical Module Applications - The 100G optical module is primarily utilized in cloud data centers and high-speed networks, with QSFP28 emerging as the mainstream packaging method [7]. - Significant technological advancements in 100G modules include digital coherent receiver technology and advanced error correction coding, catering to evolving user demands [7]. Group 5: 400G Optical Module Commercialization - The 400G optical module is set to become commercially viable in 2023, driven by the increasing demand from AI model training and 5G network construction [10]. - Major Chinese telecom operators are expected to deploy 400G modules extensively, with significant market share anticipated by 2024-2025 [10]. Group 6: 800G Optical Module Projections - The 800G optical module is projected to become mainstream by 2025, primarily driven by the needs of AI data centers for large-scale GPU cluster interconnections [13]. - Different types of 800G modules are categorized based on transmission distance, catering to various applications from data center interconnections to long-distance transmission [15]. Group 7: 1.6T Optical Module Development - The 1.6T optical module is expected to see commercial rollout in 2025, with gradual scaling from initial small batch shipments to larger production volumes by year-end [16]. - Key players like Nvidia and Zhongji Xuchuang are leading the early adoption and certification processes for 1.6T modules [18].

Investment Rating - The report recommends a "Buy" rating for key companies in the optical communication sector, specifically highlighting the "Four Little Dragons 3.0" [10]. Core Insights - The investment logic in optical communication is shifting from leading companies to high-resilience, high-barrier, or core-positioned quality targets as the global AI computing competition intensifies [1][19]. - The report emphasizes the importance of companies with clear technological positioning and performance delivery capabilities in the emerging "Four Little Dragons 3.0" [1][19]. Summary by Sections Historical Perspective: Growth Logic of "Four Little Dragons" - In 2019, the report recommended the first generation of "Four Little Dragons" including Taicheng Light, New Yisheng, Tianfu Communication, and Quartz Co. [2][20]. - By the end of 2024, the second generation included Taicheng Light, Dekeli, Yuanjie Technology, and Tengjing Technology, benefiting from AIDC construction and optical module iteration [2][20]. Future Outlook: Rise of "Four Little Dragons 3.0" - The report suggests focusing on the new generation of "Four Little Dragons 3.0": Dongtianwei, Kecuan Technology, Huilv Ecology, and Zhishang Technology, as silicon photonics technology penetration increases [3][21]. - Dongtianwei is positioned in the upstream core components of optical communication, with a complete product matrix and proactive capacity expansion [21]. - Kecuan Technology benefits from the continuous penetration of silicon photonics, having launched its first 400G/800G high-speed optical module production line [21]. - Zhishang Technology is expected to benefit from the implementation of CPO, producing high-density optical connection solutions [22]. - Huilv Ecology is expanding into the high-speed optical module sector through acquisitions, establishing a comprehensive product matrix from 10G to 1.6T [24]. Investment Strategy - The report recommends focusing on companies in the optical communication sector such as Zhongji Xuchuang, New Yisheng, Tianfu Communication, Taicheng Light, and Tengjing Technology, among others [8][13]. - It also highlights the importance of companies involved in copper links, computing equipment, liquid cooling, edge computing platforms, and satellite communication [8][13]. Market Performance - The communication sector has shown strong performance, with the optical communication index rising by 2.6% and the IoT sector outperforming with a 4.8% increase [16][18].

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