Stock market warning: S&P 500 repeats 60-year pattern as Nvidia, Apple and big tech raise market risk
S&P 500 faces a 60-year concentration warning as Nvidia, Apple, Microsoft, Amazon and Alphabet drive the market amid rising AI bubble fears. | Business News
The US stock market has continued to hit record levels in 2026. The S&P 500, Nasdaq Composite and Dow Jones Industrial Average have all gained more than 20% over the past 12 months, as of August 2026. A major reason behind the strong market rally has... [7662 chars]