Asian Stocks Plunge on AI Skepticism

Asian stocks tumble as AI investment doubts trigger 4% KOSPI drop and 7% SK Hynix plunge.

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Oct 20, 2026

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Asian Stocks Plunge on AI Skepticism

Asian stocks tumble as AI investment doubts trigger 4% KOSPI drop and 7% SK Hynix plunge.

In brief

Asian stocks tumble as AI investment doubts trigger 4% KOSPI drop and 7% SK Hynix plunge. Asian stock markets fell 4% on KOSPI and 7% on SK Hynix due to AI investment skepticism and high U.S. Treasury yields. Originally reported by BigGo Finance.

Asian Stocks Plunge

Asian Stocks Plunge on AI Skepticism; KOSPI Tumbles 4%, SK Hynix Sinks 7%

Major Asian stock markets fell in unison on the 20th, failing to extend the previous day's tech-led rebound in New York.

KOSPI Tumbles 4%

South Korea's KOSPI plunged more than 4% in early trading, the weakest performance among Asia-Pacific benchmarks.

SK Hynix Sinks 7%

SK Hynix cratered over 7% to approach its lowest level since April, while Samsung Electronics fell more than 3%.

Elice Plunges 32%

Elice Plunges 32%

Elice, making its trading debut, plunged as much as 32% intraday, further denting investor sentiment.

MSCI Asia-Pacific Index Falls

The MSCI Asia-Pacific Index fell around 1%, with eight of its 11 sub-sectors declining.

Japanese Markets Decline

Japan's Nikkei 225 dropped 1% and the TOPIX fell 0.9% as AI hardware stocks sold off.

Semiconductor Stocks Drop

Resonac Holdings plunged 6.43%, Fujikura fell 6.34%, and SoftBank Group dropped 6.34% in semiconductor stocks.

U.S. Treasury Yields Rise

The U.S. 10-year Treasury yield held at elevated levels around 5.13%, 5.14%, extending a 6, 7 basis point rise.

Tech Earnings Test

U.S. mega-cap tech earnings, including Meta Platforms, are expected to test the AI rally's durability this week.

Market Sentiment Shift

Risk-aversion sentiment resurfaced as doubts over AI capital expenditure profitability persisted.

The headline

Asian stock markets fell 4% on KOSPI and 7% on SK Hynix due to AI investment skepticism and high U.S. Treasury yields.

Read the original on BigGo Finance

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