The S&P 500 closed at a record high of 7,398.93 on May 8, 2026, driven by a surge in tech and AI stocks. This marks a 5% increase from the previous high set on April 15. Key contributors to the rally include Nvidia, AMD, Super Micro Computer, Apple, and Sandisk, all benefiting from increased AI infrastructure spending. Nvidia remains central to the AI boom, with its GPUs powering most AI training workloads. AMD and Super Micro Computer also gained as investors focused on AI accelerators and server infrastructure. Apple's integration of AI features into its ecosystem and Sandisk's flash memory demand further fueled the rally. Despite macroeconomic concerns like rising oil prices, strong economic data and steady Federal Reserve policies supported market optimism.