Yahoo Finance analysis reveals that 15 S&P 500 companies have seen their stock prices surge by 100% or more this year, primarily driven by the AI boom. SanDisk (SNDK) leads the pack with a nearly 600% gain, while AI chip giants like NVIDIA are notably absent from the list. The roster also includes established tech companies transitioning to AI infrastructure, such as Dell, Intel, and Hewlett Packard Enterprise, as well as energy companies like Marathon Petroleum and Valero, which benefit from the fuel demands of AI data centers, indicating a broadening scope of AI investment.