AI controls US stock exchange: 218 S&P 500 companies depend on it, vs. 38 in 2024

Artificial intelligence is rapidly becoming central to the U.S. stock market, with nearly half of the companies listed in the S&P 500 index now deeply integrated into the AI economy. These companies rely on AI for core aspects of their business, including operations, product development, and revenue generation.

According to a study released July 16 by the consulting firm BestBrokers, 218 companies within the S&P 500 are directly linked to AI. This represents 43% of the index's 503 constituent companies and accounts for a substantial market capitalization of over $4.2 trillion, which is 62% of the index's total value. This marks a dramatic surge from just 38 AI-related companies in 2024.

Some of these AI-driven companies have seen extraordinary stock performance, with gains reaching several hundred percent over the same period. The S&P 500, a benchmark for the largest U.S. publicly traded companies, illustrates the pervasive influence of artificial intelligence across major sectors of the American economy.

The study underscores the accelerating pace at which artificial intelligence is reshaping industries and corporate valuations. The significant increase in AI's role suggests a fundamental shift in how businesses operate and generate value, with AI becoming an indispensable component for growth and competitiveness among the nation's largest corporations.