Only 28% of Funds Beat S&P 500 as AI-Fueled Megacaps Drive Rally
Updated
Updated · Bloomberg · May 14
Only 28% of Funds Beat S&P 500 as AI-Fueled Megacaps Drive Rally
2 articles · Updated · Bloomberg · May 14
Barclays data show just 28% of mutual funds are outperforming the S&P 500 this year, a sharp reversal for active managers.
More than 60% had been beating the index at the end of February, when money had rotated out of high-flying technology shares into the broader market.
That advantage faded as investors piled back into a narrow group of AI-linked tech heavyweights, lifting the benchmark in ways diversified portfolios could not match.
The shift underscores a familiar problem for stock pickers: concentrated megacap rallies can leave most active funds trailing even when the broader market appears strong.
If passive funds are over-exposed to tech giants, where can active managers find hidden value now?
With AI stocks dominating the market, is the classic advice to diversify your portfolio now dangerously outdated?
As most fund managers fail to beat the market, is the AI boom creating a bubble poised to burst?
The S&P 500’s Most Concentrated Rally Ever: AI Megacaps, Market Risks, and the 2026 Investment Challenge
Overview
The S&P 500 rally in 2026 was driven by an unusually small number of stocks, making the market more concentrated than ever before. This narrow leadership was fueled by strong investor enthusiasm for artificial intelligence, leading to a surge of capital into a handful of technology giants and pushing their valuations to new highs. As a result, the overall market gains masked underlying risks, since the performance depended heavily on these few AI-linked megacap stocks. This unique situation highlights both the opportunities and vulnerabilities of a market rally powered by such a concentrated group of companies.