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Korean Stocks See Deep V-Shaped Recovery After Opening Plunge, Samsung and SK Hynix Strongly Turn Losses to Gains

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AuthorBlock Tao

Jul 20, 2026 12:44 AM

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On July 20, Japanese markets closed for the Marine Day holiday, while South Korean stocks experienced high volatility. The KOSPI index initially plunged over 4% before paring losses to 0.54%, trading at 6,783.97 points. Semiconductor majors Samsung Electronics and SK Hynix mirrored this recovery, reversing significant opening deficits to trade in positive territory. The rapid rebound suggests panic selling has largely subsided. Moving forward, investor attention remains fixed on upcoming AI sector earnings; strong capital expenditure from U.S. tech firms is expected to provide fundamental support for demand and margins within South Korea's memory chip industry.

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TradingKey - Japan markets closed for holiday; South Korean stocks open lower but climb, KOSPI edges down, Samsung Electronics and SK reverse losses to trade higher.

During the Asian session on July 20, Japanese stock markets were closed for the 'Marine Day' holiday. Meanwhile, South Korean stock markets, which opened normally, continued their recent black swan selloff, suffering a bloody plunge after the opening bell. The Korea Composite Stock Price Index (KOSPI) gapped significantly lower at the open, at one point falling over 4% to test around 6,523.62 points. It has since pared its losses to 0.54% and is currently trading at 6,783.97 points.

kospi-e6ac81913ad34d48ba75f3f82b2e50e0 KOSPI Index Chart, Source: TradingView

Similar to the KOSPI index opening sharply lower before rebounding, South Korea's two semiconductor giants, Samsung Electronics and SK Hynix, followed a similar pattern today. Specifically, Samsung Electronics fell below 250,000 won at the open, a decline of over 4%, but is currently up 0.2% at 255,500 won; SK Hynix fell below the 1.8 million won mark at the open, dropping over 5%, but has now reversed losses to gain 2.17%, currently trading at 1,882,000 won.

Last Friday, the South Korean stock market temporarily avoided the market crash due to a holiday closure. Although it suffered a severe blow at today's open, it quickly rebounded, reflecting that the market's panic selling has been largely released and has now eased. This week, the key focus will be on the successive earnings reports from Google ( GOOG ), Intel ( INTC ), IBM ( IBM) and other AI companies. If their AI capital expenditure remains strong, the demand for advanced memory and profit margins of Samsung and SK Hynix are expected to continue receiving substantial support.

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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