2026光通信“四小龙3.0”

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].