Nikkei posts 5th-largest point drop ever as Kioxia halves and chip stocks slide — July 18, 2026
AI-generated from public sources. Not investment advice; please check sources before making important decisions.
Top U.S. Stories
- U.S. stocks fell for a second straight session Friday as a semiconductor selloff deepened and geopolitical risk weighed on sentiment, with the S&P 500 down 1.01%, the Dow off 406.55 points (-0.77%), and the Nasdaq Composite sliding 1.4%. Why it matters: the pullback reflects growing doubts about the payoff from massive AI infrastructure spending, not a drop in underlying demand — a distinction that will shape how sharp and how long this correction runs.
- AMD fell 5%, Intel dropped 4%, and Nvidia slid 3% before paring losses, part of a broader rotation out of high-flying AI names. Global semiconductor stocks have shed roughly $3.3 trillion in market value since June 22. Why it matters: Japan’s Kioxia crash (below) shows the selloff is now a global, cross-market phenomenon, not confined to U.S. tech.
- Crude oil traded above $80 a barrel, near a one-month high, as the U.S. and Iran traded strikes for a sixth consecutive day over control of the Strait of Hormuz. Why it matters: roughly a fifth of the world’s oil and gas normally transits the strait; a prolonged standoff keeps upward pressure on energy prices and, by extension, inflation.
- The U.S. struck six road bridges in southern Iran overnight, killing at least eight people in Hormozgan province, while Iran fired missiles and drones that injured military personnel at a U.S.-linked base in Kuwait.
- Flash flooding on the Guadalupe River near Comfort, Texas killed at least two people and triggered more than 230 rescues, with water levels exceeding last year’s record in the same stretch of river.
- Netflix shares fell sharply after quarterly earnings disappointed investors, adding to Friday’s tech-led market weakness.
Markets
Friday’s session closed out a losing week on Wall Street. The Nasdaq’s 1.4% drop was the steepest of the major indexes, dragged down by chipmakers, while defensive names such as Travelers, UnitedHealth, and Walmart outperformed. Oil’s rise above $80 came alongside a weaker yen, with the dollar buying 162.35 yen as of July 17 — a historically weak level that keeps import-price pressure elevated in Japan.
Stocks in Focus
Tokyo’s Nikkei 225 plunged 2,694.42 points (-4.03%) to 64,141.12 on Friday, its fifth-largest single-day point drop on record. The move was led by Kioxia Holdings, which hit its daily limit down, falling 52% from its all-time high reached less than a month earlier and erasing roughly ¥30 trillion in market value, after a major patent-damages verdict compounded broader doubts about AI-related valuations. This is not investment advice — coverage of market moves, not a recommendation to buy or sell.
Compass Insight
The thread running through today’s news is the market’s reassessment of AI spending: Kioxia’s collapse and the U.S. chip selloff stem from the same underlying doubt — whether returns on AI infrastructure can keep pace with the capital being poured into it. Layered on top is the Strait of Hormuz standoff, now in its sixth day, keeping oil near one-month highs. For households and investors, the combination of a weak yen (above ¥162) and firmer oil prices is the pairing to watch, since it tends to show up with a lag in fuel and import costs. Near-term, chip-stock volatility and the Iran-U.S. conflict remain the key swing factors; over the medium term, whether markets can tolerate further AI capex increases — and how central banks respond to energy-driven inflation risk — will matter more than any single day’s headline.
Sources:
- Stock market today: Dow, S&P 500, Nasdaq post weekly losses as semiconductors get smoked (Yahoo Finance)
- AMD Falls 5%, Intel Drops 4%, NVIDIA Slides 3% (24/7 Wall St.)
- Chipmakers and other high-flying stocks slide as AI trade wobbles (Yahoo Finance)
- U.S. strikes bridges in Iran; Tehran targets U.S. bases in the Gulf (NPR)
- Guadalupe River flooding kills at least one in Texas Hill Country (HNGN)
- Kioxia Holdings shares halve from record high in under a month (Bloomberg via Yahoo News Japan)
- Nikkei closes down 2,694.42 points at 64,141.12 (Investing.com)
- Market data: frankfurter API (USD/JPY, ECB reference rate) / Yahoo Finance (S&P 500, Dow, Nasdaq)
This article is based on publicly available information.
Auto-generated and AI-written. Not investment advice.
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