2026年的AI交易赢家会是哪些？2025年最大赢家已不是英伟达

Core Viewpoint - The investment landscape is shifting from traditional tech giants like Nvidia to a broader range of companies involved in data storage, power supply, and construction, driven by the AI and data center boom [1][3][5]. Data Storage Sector - Data storage companies led the S&P 500 in 2025, with SanDisk's stock soaring nearly 580%, making it the best-performing stock in the index [3][5]. - Other notable performers in the data storage sector included Western Digital and Seagate Technology, ranking second and fourth respectively [3]. - Analysts expect continued growth in the data storage sector, with Pure Storage Inc. projected to rise 38% from its current price of $68 to $94 by 2026 [7]. Power Supply and Construction Stocks - Stocks related to data center construction and power supply are gaining popularity, with firms like Quanta Services Inc. being highlighted as key players [9]. - Other contractors in this space include MYR Group Inc., Primoris Services Corp., and MasTec Inc. [9]. - Companies involved in wiring solutions, such as Amphenol and Emcor Group Inc., are also seeing increased interest [10]. Broader Infrastructure Companies - Additional power infrastructure companies like Vistra Corp., Constellation Energy Corp., and Generac Holdings Inc. are recognized for their potential [12]. - Vertiv Holdings Co., which provides power systems and cooling solutions for data centers, is noted for its 40% increase in 2025 [13]. Software Sector - Long-term investors are eyeing the software sector, anticipating that improvements in large language models and application development will benefit this area [15]. - Despite a lackluster performance in 2025, with the S&P 500 software index rising only 12%, stocks like Snowflake Inc., Datadog Inc., and ServiceNow Inc. are considered attractive due to their valuations [15].