Market Indexes Retreat Tuesday as the Tech Sell-Off Returns

The iShares Semiconductor ETF fell 8.6% by midday Tuesday, erasing Monday's rebound. The Nasdaq dropped 2.8%, the S&P 500 fell 1.6%, and the Dow lost 0.6%. Apple declined 3.8% after unveiling an AI-oriented Siri update, on track for its worst day since February. Chip stocks like Nvidia, Broadcom, and Micron also fell sharply.