Kospi Leads Asian Markets; Samsung Electronics, SK Hynix, Kioxia Rise

In the early Asian session on June 24, Japanese and South Korean stock markets saw a technical recovery after yesterday’s sharp sell-off. South Korea’s KOSPI index opened at 8,356.79 points, up about 1.86% from the previous trading day’s close of 8,203.84 points; as of press time, the KOSPI stood at 8,543.68 points, up 4.14%. The Nikkei 225 index opened at 69,615 points, down about 0.31% at the open, and was at 69,691.12 points as of press time, down 0.18%.

KOSPI Index Performance, Source: TradingView

In terms of individual stocks, South Korean semiconductor leaders rebounded significantly after yesterday’s plunge. As of press time, Samsung Electronics rose over 7% to 332,000 won; SK Hynix climbed about 3.8% to 2.653 million won; Japanese memory chip giant Kioxia also gained, rising over 5% to 96,980 yen.

Samsung Electronics Stock Price Performance, Source: TradingView

The performance of Japanese and South Korean stock markets in early trading today is more of a technical recovery following yesterday’s sharp sell-off rather than a complete resolution of market risks. On Tuesday, South Korea’s KOSPI triggered circuit breakers as heavyweight semiconductor stocks like Samsung Electronics and SK Hynix plummeted, unleashing concentrated market concerns over overheated AI chip trading, leveraged ETF risks, and global tech stock valuations. Following a day of sharp declines, some capital chose to cover positions in high-weight chip stocks, driving the KOSPI’s early rebound.

However, looking at the market performance, the recovery is uneven. The rebound in the South Korean market is noticeably stronger than that in Japan, primarily because Samsung Electronics and SK Hynix experienced larger declines yesterday, leading to a stronger catch-up effect at today’s open. Although the Nikkei 225 entered positive territory intraday, it still opened lower, showing that the Japanese market remains cautious about overnight fluctuations in US tech stocks and the movement of the yen.

On the news front, investors remain focused on whether global semiconductor stocks can halt their decline, and whether Micron Technology’s earnings will validate the strength of the memory chip cycle. If US tech stocks continue to face pressure tonight, the early rebound of Japanese and South Korean semiconductor stocks may still face volatility; if Micron ( MU )’s earnings report and guidance deliver positive signals, Samsung Electronics, SK Hynix, and Kioxia are expected to continue attracting short-term capital inflows.

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