Nasdaq drops second day as semiconductor stocks slide on supply concerns
The Nasdaq dropped for a second consecutive day, falling zero point five one percent to close at twenty-six thousand ninety, while the broader S&P five hundred slipped zero point zero seven percent. The decline was led by weakness in semiconductor stocks, particularly memory chip makers. Micron Technology fell around six percent, dragged lower by broader sector losses. Seagate's CEO sparked the selloff by warning at a JPMorgan conference that building new chip factories would take too long, fueling investor concerns the industry cannot meet surging AI-related demand. Additional pressure came from rising Treasury yields, with the ten-year bond reaching its highest level since February twenty twenty-five, reflecting inflation worries. Technical factors also weighed on the market, including profit-taking after the Nasdaq had hit record highs last week. Analysts say the pullback reflects a mix of supply chain uncertainties and geopolitical risks, though underlying demand for AI infrastructure remains strong.
Key facts
- Nasdaq Composite declined 0.51 percent to 26,090.73 on May 18, 2026
- Micron Technology fell approximately 6 percent as part of second consecutive decline
- Seagate Technology fell 7 percent after CEO said building new factories would take too long
- Philadelphia Semiconductor Index dropped 3.3 percent on May 18
- Micron stock has surged 116 percent over six weeks from late March to May 11 peak of 818.67
- Samsung strike threat could remove 3 to 4 percent of global DRAM supply
- 10-year Treasury yield climbed to highest level since February 2025 on inflation concerns
Limits of this briefing
No distinctly left-leaning or right-leaning sources were found in the search results; coverage came primarily from centrist financial media. The story focuses heavily on supply-side and technical factors while long-term AI demand fundamentals remain relatively unquestioned across sources.
Sources
- CNBC: Nasdaq posts back-to-back losses as Micron's decline weighs down tech sector Centre
- The Motley Fool: Stock Market Today, May 18: Micron Falls as Memory Concerns Test AI Rally Centre
- Detroit News: S&P 500, Nasdaq fall as chip stocks slide, Treasury yields climb Centre
- Benzinga: HIVE, NOW, D, MU, TE: 5 Trending Stocks Today - Micron Technology Centre
- Investing.com: Why is Micron stock sliding today? Centre