S&P 500: Top 15 Stocks Hit Record 46.7% Share

Brent Johnson compared the current AI boom to the dot-com era, predicting widespread bankruptcies alongside a handful of survivors that will dominate for years. Michaël van de Poppe amplified data from The Kobeissi Letter showing the 15 largest S&P 500 stocks now hold a record 46.7% of index market value versus 27.2% at the 2000 peak. Nvidia ($NVDA), Apple ($AAPL), Alphabet ($GOOGL) and Microsoft ($MSFT) alone represent 26.1%, while the top five equal the combined value of the bottom 434 names.