Global Chip Selloff Drives Kospi to July Lows as AI Valuation Fears Intensify
A sharp global sell-off in semiconductor stocks has driven South Korea’s Kospi index to its lowest level since late July, falling 7.4% to 5,914.35. The decline was triggered by fears that the artificial intelligence boom is overheated, rising financing costs, and intensifying competition from Chinese memory chipmakers. Memory chip leaders SK Hynix and Samsung Electronics led the losses, with SK Hynix dropping 10% and Samsung falling 7.7%. The weakness spread across the sector, affecting U.S. and Japanese chipmakers, with 10 major chip stocks now showing oversold technical conditions.
Key points
- South Korea’s Kospi index fell 7.4% to 5,914.35, its lowest level since late July, driven by a sharp sell-off in semiconductor shares.
- Memory chipmakers SK Hynix and Samsung Electronics led the decline, falling 10% and 7.7% respectively, amid fears of competition from Chinese firm CXMT.
- U.S. chipmakers also retreated, with Intel dropping 5.7% and Micron, Seagate, and Western Digital falling in premarket trading.
- Ten chip-related stocks now show oversold conditions based on the Relative Strength Index, with Tokyo Electron leading at an RSI of 17.
- The selloff is attributed to concerns over overheated AI valuations, rising financing costs, and growing Chinese competition in the memory chip market.
Background
This sharp decline follows a recent period of strength for technology stocks, with the Nasdaq hitting record highs in early October 2026. However, concerns about AI valuations and Chinese competition have triggered a rotation of capital away from Korean equities toward diversified AI supply chains in Taiwan. The current selloff represents a significant reversal from the recent rally, with the Kospi index falling from its all-time high in June to its lowest level since late July.
How outlets are covering it
Seeking Alpha emphasizes the technical oversold conditions in the semiconductor sector, highlighting 10 chip stocks with low Relative Strength Index readings, with Tokyo Electron leading at 17. Yahoo Finance focuses on the specific declines in major chipmakers like Micron and SK Hynix, noting the broader sell-off following the South Korean market rout. NBC News provides a broader market context, noting that the Kospi index fell 7.4% to its lowest level since late July, driven by fears of Chinese competition and AI boom worries, while also noting mixed performance in other Asian markets and U.S. futures.
Why it matters
The semiconductor sector is a key driver of global tech markets, and a sharp sell-off in this sector can have significant implications for the broader economy. The current decline reflects concerns about AI valuations, rising financing costs, and Chinese competition, which could impact the profitability and growth of major chipmakers. The oversold conditions in the sector may signal a potential rebound, but the ongoing concerns about AI valuations and competition could continue to weigh on the sector in the near term.
What to watch
Investors will be watching for signs of a rebound in the semiconductor sector, as well as the impact of the current sell-off on the broader market. The upcoming earnings announcements from major firms, including big banks, will also be closely watched for signs of economic strength or weakness. The ongoing concerns about AI valuations and Chinese competition will continue to be key factors in the sector's performance.
- Semiconductor selloff: 10 chip stocks showing signs of oversold conditions (SMH:NASDAQ) Seeking Alpha
- Micron, SK Hynix stocks tumble as chip sell-off deepens following South Korean market rout Yahoo Finance
- South Korea’s Kospi index sinks more than 7% on semiconductor share sell-off over AI boom worries NBC News
- Asia Stocks Battered as Semiconductor Stocks Dive WSJ
- Cracks Grow Across the AI Trade as Memory-Chip Stocks Tumble Bloomberg.com
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