突发3大利好！16只光纤龙头集体涨停，高盛早已暗中布局这4股！

Core Viewpoint - The optical fiber and cable sector has experienced a significant surge in stock prices, with 16 companies seeing increases of over 9% in a single day, driven by the demand for AI-related infrastructure and technological advancements in the industry [1][3][10]. Group 1: Market Performance - The optical fiber sector saw remarkable stock performance, with companies like Yuzhong Technology and Sanhuan Group rising by 19.99% and 15.54% respectively, indicating a strong market reaction [2][3]. - The average price of mainstream G.652.D optical fiber in China has exceeded 40 RMB per core kilometer, with some urgent orders reaching 50 RMB, marking an over 80% increase from the previous year's low [8]. Group 2: Demand Drivers - The explosive growth in AI computing power demand is a primary driver, with optical fiber usage in AI data centers being 16 to 36 times higher than traditional data centers [4][6]. - Major tech companies, such as Meta, have signed substantial contracts, including a $6 billion long-term supply agreement with Corning for optical fibers, further fueling industry optimism [6][8]. Group 3: Supply Constraints - The production of optical fiber preform, a critical raw material, faces significant technical barriers and long lead times, with capacity expansion taking 18 to 24 months [6][8]. - Global production capacity for optical preform is nearing 100%, leading to a supply crunch, particularly for standard communication fibers, as manufacturers prioritize high-end products for AI data centers [8][10]. Group 4: Industry Dynamics - The industry has undergone consolidation, with the top four companies, including Corning and domestic leaders like Changfei Fiber and Zhongtian Technology, holding over 50% market share [10][11]. - Companies with integrated supply chains, capable of producing their own optical preform, are positioned to benefit significantly from rising prices, showcasing substantial profit elasticity [11][12]. Group 5: International Expansion - Chinese optical fiber companies are accelerating their international expansion, targeting high-value orders in North America and Europe, while also achieving breakthroughs in next-generation communication technologies [12][13]. Group 6: Investment Interest - International investment banks, including Goldman Sachs, have made significant investments in several optical fiber companies, indicating strong market confidence and recognition of growth potential [3][20]. - Companies like Hangdian Technology and Wanlong Optoelectronics are attracting attention due to their comprehensive production capabilities and involvement in multiple high-growth sectors, including energy and industrial digitization [17][20].