AI Stocks Skyrocket Globally as $100B Nvidia-OpenAI Deal and Alibaba’s Mega AI Push Ignite Market (Sept 23–24, 2025)
After a red-hot run of AI-driven gains, U.S. markets took a breather on September 23 as investors digested economic signals. The S&P 500 and tech-heavy Nasdaq pulled back after three straight record closes powered by AI enthusiasm reuters.com. Nvidia, fresh off a new record high the day prior, dipped 2.8% as traders took profits reuters.com. Other mega-cap tech names like Amazon, Microsoft, and Apple also ticked lower reuters.com. Fed Chair Jerome Powell’s cautious remarks about interest rates and stock valuations cooled sentiment, prompting some rotation out of richly valued tech shares. “With this being the third year of double-digit returns for the S&P 500, there needs to be another strong catalyst to move stocks materially higher. And right now, it is not clear what that catalyst can be,” observed Oliver Pursche of Wealthspire Advisors, noting signs of an economic slowdown tempering the rally reuters.com. Despite the one-day pullback, the broader backdrop remains a historic “everything rally” fueled in large part by AI. Traders have largely been betting that booming investment in artificial intelligence will continue to propel tech sector growth even as the economy softens. Gold prices hit fresh highs as some investors hedged risk, but overall market optimism stayed