AI & Enterprise
S&P 500 AI-related stocks near 45 percent weight as megacap tech concentration raises warning sign
The weighting of artificial intelligence-related stocks in the S&P 500 has expanded to about 45 percent of market capitalisation, raising concerns that concentration in a handful of megacap technology stocks is becoming a key risk for U.S. equities. AI-linked companies already account for more than 40 percent of the index’s value. Analysts cite rising AI infrastructure spending, widening performance gaps and weaker diversification. Some warn that even a modest correction could trigger index deleveraging.