Market News / Story
JPMorgan Spots Stunning Shift in S&P 500
GuruFocus ·
GuruFocus reports: Artificial intelligence has become so dominant in U.S. equities that a JPMorgan basket of just 41 AI-linked companies now represents 49% of the S&P 500's market value , underscoring how heavily the broader market increasingly depends on a single investment theme. The concentration is historically unusual. JPMorgan noted that one industry has not commanded a comparable share of the U.S. stock market since railroads dominated equities in the nineteenth century . The same AI…