Stock Market Today, July 16: Micron Plunges as Tech Stocks Extend Sell-Off
2026-07-16 21:03
•Emma Newbery •The Motley Fool
••••••••• •••••• Axe Capital view
Tech Sell-Off Hits Semiconductor Growth, Sets Rand to Watch
AI spending worries and geopolitical tensions weigh on global tech; what this means for JSE and USD/ZAR.
Tech stocks worldwide are taking a hit, led by memory chip makers like Micron and giants like Nvidia. Even Taiwan Semiconductor, despite its record profits, couldn’t escape the sell-off. The Bank of America survey showing nearly half of fund managers worried about an AI bubble signals heightened caution. For South African investors, this means watching USD/ZAR closely: a weaker rand could make tech imports pricier and squeeze margins for companies reliant on foreign tech. Locally, Naspers and Prosus, which have significant tech exposure, are vulnerable to this shift. Meanwhile, defensive sectors like healthcare rallied globally, suggesting a potential rotation. But the SA market often lags global trends—if US-Iran tensions ease or AI fears prove overblown, tech could bounce back quickly. For now, the rand’s direction will be key, driven by global risk appetite and commodity flows this quarter. this is just my opinion and not financial advice
Trim exposure to Naspers and Prosus for now; keep a close eye on USD/ZAR moves before adding risk. Consider increasing holdings in locally oriented defensive stocks like Clicks or Aspen if volatility rises.
- Naspers
- Prosus
- USD/ZAR
- US-Iran tensions de-escalate reducing geopolitical risk
- AI spending accelerates re-igniting tech optimism
6/10
Tech stocks extended their sell-off on July 16, 2026, with the Nasdaq Composite falling 1.47% amid growing AI spending concerns and escalating U.S.-Iran tensions. Micron Technology plunged nearly 6%, while semiconductor leaders like Nvidia and Broadcom declined. Taiwan Semiconductor Manufacturing fell despite record earnings. Abbott Laboratories surged over 10% on strong earnings. A Bank of America survey revealed 45% of fund managers view an AI bubble as the largest market risk.
This article was originally published by The Motley Fool and has been adapted here for Axe Capital Trading News.
Publisher: The Motley Fool
Author: Emma Newbery
Categories: Equities, Earnings, IPOs, Geopolitics, Technology, AI, Semiconductors, Financials, Healthcare
Tickers: MU, TSM, NVDA, AVGO, ABT, SPCX
Sentiment: Mixed - Stock plunged almost 6% as part of broad sell-off in memory chip stocks amid AI spending jitters Shares declined despite record earnings due to investor concerns about AI spending slowdown
Keywords: tech stock sell-off, AI spending concerns, geopolitical tensions, semiconductor stocks, market volatility, AI bubble risk
Insights:
- MU: Negative: Stock plunged almost 6% as part of broad sell-off in memory chip stocks amid AI spending jitters
- TSM: Negative: Shares declined despite record earnings due to investor concerns about AI spending slowdown
- NVDA: Negative: Technology leader dropped as investors rotated into defensive stocks amid AI bubble concerns