AI-Driven Sell-Off Triggers 10% Plunge in South Korea’s Kospi and Broad Tech Market Turmoil

On Tuesday, South Korea’s Kospi fell 10%, triggering a 20-minute circuit-breaker. Samsung Electronics and SK Hynix each dropped more than 12%, pulling the market lower. In the United States, the Nasdaq slipped 1.9%, the S&P 500 fell 1.2%, and the Dow lost 31 points, under 0.1%. Nvidia fell about 3%, and Oracle declined over 1%, extending a 24% month-to-date loss.

CNN

The sell-off follows rapid price gains for AI-focused firms that have driven most of the year-to-date rally. At the same time, new Federal Reserve Chairman Kevin Warsh emphasized curbing inflation, a stance traders read as a likely interest-rate hike later this year. Both factors have heightened market sensitivity to perceived overvaluation.

CNN

Key participants include Samsung Electronics, SK Hynix, Nvidia, Oracle, Micron Technology, Marvell Technology, Google, SpaceX, SoftBank Group, and Japan’s Nikkei index. Federal Reserve Chairman Kevin Warsh and former President Donald Trump (cited for a cease-fire announcement) also figure in market sentiment.

CNN

• Kospi: –10% (circuit-breaker triggered)

CNN

• Samsung, SK Hynix: >–12% each

CNN

• Nasdaq: –1.9% (?5% below June 2 record)

CNN

• S&P 500: –1.2%

CNN

• Dow: –31 points (<0.1%)

CNN

• Nvidia: –3%

CNN

• Oracle: –1% (down 24% month-to-date)

CNN

• Micron: –11%

CNN

• Marvell: –9%

CNN

• Japan’s Nikkei: –3.6%

CNN

• SoftBank: –15%

CNN

• Other Asian indexes: >–1%

CNN

AI-centric equities represent a large, significant share of market value in the United States and South Korea. A swift correction can affect global indices and investors with exposure to memory-chip and AI-software stocks. Expectations of tighter monetary policy also raise risk aversion, prompting traders to exit positions.

CNN

In his first press conference, Chairman Warsh said the Federal Reserve would “double down on its mission to get inflation under control,” a message markets read as a pledge to raise rates later in the year. The statement coincided with the sell-off, linking policy expectations to equity volatility.

CNN

Analysts cited “jitters” around AI valuations, calling them “sky-high” and prone to rapid reversal. Some pointed to recent drops in Google and SpaceX shares as triggers, while others warned that the “Jenga tower” of AI-driven gains could tip without a clear catalyst.

CNN

Sources note no specific news event directly caused the sell-off; the decline appears driven by generalized fear of overvaluation and possible rate hikes. The absence of a concrete trigger leaves uncertainty about the correction’s durability.

CNN

Sources indicate that the Federal Reserve could raise interest rates later in the year, a prospect that may sustain market pressure on AI-heavy stocks. Analysts also caution that inflated AI valuations could trigger further sell-offs if sentiment shifts.

CNN