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Japan and South Korea Stocks Edge Higher: SoftBank Surges 10% to Lead Gains, Samsung and SK Hynix Rise

TradingKey

AuthorBlock Tao

Jul 10, 2026 7:00 AM

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Japanese and South Korean markets ended the week higher on July 9, buoyed by a strong overnight rebound in US tech and semiconductor stocks. The Nikkei 225 rose 1.2% to 68,557.68 points, while the KOSPI gained 2.52% to close at 7,475.95. SoftBank surged 10.65%, driven by positive sentiment regarding OpenAI’s new product launch. Meanwhile, memory giants Samsung Electronics and SK Hynix saw gains, supported by the latter's $28 billion Nasdaq IPO. Despite afternoon pullbacks, the markets showed resilience, though Kioxia reversed early gains to finish 1.1% lower.

AI-generated summary

TradingKey - Japanese and South Korean stock markets continued to edge higher, with the Nikkei 225 outperforming the KOSPI. SoftBank surged over 10%, while SK Hynix and Samsung Electronics followed the gains, and Kioxia reversed course to close lower.

During the Asian trading session on July 9, Japanese and South Korean stock markets opened higher and rose in the morning, but retreated in the afternoon, paring earlier gains. Among them, the KOSPI Index rose 2.52%, briefly touching 7,700 points intraday before ultimately closing at 7,475.95 points; the Nikkei 225 closed up 1.2% at 68,557.68 points.

kospi-61166f10b5bb4809865537719c6951b5 KOSPI Index chart, Source: TradingView

Among individual stocks, SoftBank fell slightly, while other heavyweight stocks staged rebounds of varying degrees. Specifically, Samsung Electronics rose 2.97%, breaking through the 280,000 threshold to close at 286,500 won; SK Hynix surged over 4% in early trading but pared gains to 0.53%, closing at 2,198,000 won; Kioxia reversed from a 4% gain to a 1.1% decline to close at 77,000 yen, ending its two-day winning streak; SoftBank jumped 10.65% to close at 6,370 yen.

softbank-price-19acfabd6f7b4498bcccf5600a4b5487 SoftBank share price chart, Source: TradingView

Driven by a strong overnight rebound in US tech and semiconductor stocks, along with the dual positive catalysts of South Korean memory chip giant SK Hynix (SKHY) launching a historic $28 billion IPO on the US Nasdaq today, Japanese and South Korean stock markets ended the week higher. Meanwhile, OpenAI's announcement of a new product sparked a rally in SoftBank's share price, leading the gains.

This content was translated using AI and reviewed for clarity. It is for informational purposes only.

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Disclaimer: The content of this article solely represents the author's personal opinions and does not reflect the official stance of Tradingkey. It should not be considered as investment advice. The article is intended for reference purposes only, and readers should not base any investment decisions solely on its content. Tradingkey bears no responsibility for any trading outcomes resulting from reliance on this article. Furthermore, Tradingkey cannot guarantee the accuracy of the article's content. Before making any investment decisions, it is advisable to consult an independent financial advisor to fully understand the associated risks.

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