年报利好，4家数据中心年报最大增159%，北向、高盛重仓前十

Core Viewpoint - The article highlights the significant growth potential of companies involved in data center infrastructure, particularly in the context of the AI boom, with South Star Co. (南兴股份) projected to achieve a remarkable 159% increase in net profit, surpassing many AI-focused firms [1][11]. Group 1: Company Performance - South Star Co. is not a tech giant but a company deeply engaged in data center infrastructure, indicating that the foundational elements supporting AI models may represent a more stable business opportunity [3]. - South Star Co. transitioned from furniture manufacturing to IDC and cloud computing services through the acquisition of a network company, providing various cloud services to aid digital transformation [3]. - In the first three quarters of the previous year, Northbound funds became the third-largest shareholder of South Star Co., purchasing 2.72 million shares, leading to a significant increase in its stock price [3][11]. Group 2: Comparative Growth - Compared to South Star Co., Sanhua Intelligent Control (三花智控) is expected to see a net profit growth of 37.5%, focusing on temperature control technology essential for data centers [5]. - Luxshare Precision (立讯精密), a consumer electronics giant, anticipates a 26% net profit growth in 2025, with its connector products integral to data center operations [6]. - Shandong Zhanggu (山东章鼓) has a modest projected profit growth of 6.24%, but its investment in a company producing advanced cooling systems for data centers has attracted attention from major international investors [6]. Group 3: Investment Trends - Foreign capital is systematically investing in the entire supply chain of computing infrastructure, from data center operations to critical environmental controls and internal connections [8]. - The demand for optical modules, essential for high-speed data transmission within data centers, has surged, with companies like Cambridge Technology gaining attention from top investment banks due to advancements in their 1.6T optical modules [8]. - Companies providing backup power solutions for data centers, such as Jereh Group (杰瑞股份), have also gained traction, securing significant orders and attracting substantial foreign investment [9]. Group 4: Market Dynamics - Domestic public funds are actively increasing their stakes in computing-related stocks, indicating a strong market interest in this sector [11]. - The impressive profit forecast for South Star Co. and its growing shareholder base signal a broader shift in the market, emphasizing the importance of computing power and energy in the AI competition [11][12]. - Major investment firms like Goldman Sachs and Morgan Stanley are focusing on the foundational infrastructure needed for AI, suggesting a strategic investment approach that prioritizes certainty in the AI wave [12].