The domestic stock market, which was closed for three days during the Chuseok holiday, will reopen on the 28th, with attention focused on the stock price volatility of major companies like Samsung Electronics and SK Hynix. Given the strong upward trend just before the holiday, movements in the overseas semiconductor market during the break are expected to significantly influence stock prices on the first trading day.
Prior to the holiday on the 23rd, Samsung Electronics closed at 285,500 won, up 3.25% from the previous trading day, while SK Hynix finished at 1,860,000 won, a 1.20% increase. The KOSPI index also rose by 1.21% to close at 7,080.92, buoyed by strong performances in U.S. tech and semiconductor stocks.
The overseas market also showed a favorable trend for semiconductor stocks. The Philadelphia Semiconductor Index (SOX) rose by 1.41% to 12,668.93 on the 25th. On the same day, the New York Stock Exchange saw continued investor interest in AI-related stocks, leading to gains in the Nasdaq and major tech stocks. Nvidia showed an upward trend during the day, while Qualcomm surged by over 5%.
The most critical factor for Samsung Electronics and SK Hynix is the demand for AI memory. Recently, there has been a rise in prices for HBM4 and DRAM, and expectations for the companies' third-quarter earnings are high. As of the 25th, market forecasts estimated Samsung Electronics' third-quarter operating profit at approximately 105.6 trillion won, while SK Hynix's was around 74.1 trillion won. However, it should be noted that these forecasts have slightly decreased over the past month.
As a result, there is a possibility that Samsung Electronics and SK Hynix will continue their upward momentum from before the holiday in early trading on the 28th. However, the domestic market may reflect new variables that emerged during the holiday, such as U.S. interest rates, oil prices, and Middle Eastern tensions, which could limit the gains of AI and semiconductor stocks.
It is also uncertain whether Samsung Electronics and SK Hynix will move in tandem. Samsung Electronics operates across multiple sectors, including memory, foundry, and smartphones, while SK Hynix is more sensitive to stock price fluctuations related to memory and HBM. Recently, the expansion of HBM4 supply has been highlighted as a crucial variable for both companies.
Ultimately, the key factors on the 28th will be how much U.S. semiconductor stocks moved during the holiday and how much foreign investors return to buy domestic semiconductor stocks.
If the upward trend in the overseas semiconductor market continues, Samsung Electronics and SK Hynix may show strength in early trading. However, given that their stock prices have already risen significantly before the holiday, profit-taking sales cannot be ruled out. The exact direction of price movements will depend on foreign investor activity and further developments in the U.S. market on the morning of the 28th.
* This article has been translated by AI.
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