Wall Street's dependence on AI: The technology accounts for nearly 40% of the S&P 500's weight Increasingly skeptical investors are wondering how much the high funding for AI infrastructure is justified by its fundamentals and whether the industry's fervor has gone too far.

Wall Street's dependence on AI: The technology accounts for nearly 40% of the S&P 500's weight Increasingly skeptical investors are wondering how much the high funding for AI infrastructure is justified by its fundamentals and whether the industry's fervor has gone too far.