The S&P 500 Keeps Hitting Highs — But It’s Just Microsoft and Nvidia Carrying the Entire Market

Since July 13, Microsoft and Nvidia have collectively added $1.42 trillion in market capitalization, while the remaining 71 tech stocks collectively lost $22 billion, revealing deep sector losses. Communication Services shed $300 billion, and Industrials dropped $67 billion. The S&P 500's market-cap weighting means two stocks, Microsoft and Nvidia, now determine its direction, leaving investors vulnerable if either company underperforms.

The stock market's rise to new highs appears healthy, but beneath the surface, the concentrated gains from just two companies create a false sense of security.