Magnificent Seven Drops 3%-8% in June, Triggering 4% Weekly Nasdaq Decline Despite 30% Portfolio Weight

In June, the Magnificent Seven technology stocks declined 3% to 8% during a single week, dragging the Nasdaq-100 down approximately 4%, according to market analysis. The seven companies collectively represent over 30% of the S&P 500's market capitalization, causing their concentrated weakness to offset gains elsewhere; even as eight of the S&P 500's eleven sectors posted weekly advances, the index still fell. Over the month, the group lost nearly $3 trillion in market value combined.

Capital has rotated toward semiconductor and AI infrastructure suppliers instead, with Micron Technology, Applied Materials, and Broadcom gaining favor among hedge fund positions, while technology leaders absorbing significant chip purchasing and data center investments face margin pressures and near-term earnings uncertainty.