Tech Stock Rout Continues as Nasdaq Falls Amid Inflation Fears and Micron Earnings
The Nasdaq and S&P 500 fell sharply in late June 2026 as investors rotated out of technology stocks due to concerns about rising AI infrastructure costs and inflation. The sell-off was driven partly by weakness in semiconductor stocks ahead of and following Micron Technology's earnings report.
Market Decline
The Nasdaq Composite posted its fifth consecutive losing session Friday as investors rotated out of key technology stocks and into more defensive areas of the market. The tech-heavy index dropped 0.24% to close at 25,297.62, while the S&P 500 ticked down 0.05% to 7,354.02. The S&P 500 slid nearly 2% on the week, while the Nasdaq fell 4.6% in the period. The Dow outperformed, rising 0.6% week to date.
Technology and Semiconductor Weakness
Index heavyweights Samsung and SK Hynix, which dropped over 8% and 9% respectively, were dragged by a broad selloff in Asian technology stocks amid growing concerns over rising costs of artificial intelligence infrastructure. Elsewhere in Japan, tech giant SoftBank Group also plunged more than 12% on Friday.
Chip stocks were weaker after a New York Times report that OpenAI is considering delaying its IPO to next year because of SpaceX's poor performance following its debut and overall volatility in AI-related shares.
Bright Spots and Sector Rotation
Rocket Lab — The aerospace company rose 1.5% after NASA announced Rocket Lab will provide the launch services for two missions. The missions will be to conduct research about the Sun's energy input into Earth and a deeper understanding of ice clouds that form on the planet. On Semiconductor, Synaptics — The stocks diverged in opposite directions after On Semiconductor announced an all-stock deal to acquire Synpatics. At nearly $7 billion, it's On's largest acquisition ever and will increase the company's total addressable market by $30 billion, it estimated.
Forward Outlook
Investors remain focused on the sustainability of artificial intelligence valuations and the cost burden of building AI infrastructure, which has emerged as a key concern for technology investors in June 2026.