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Samsung Electronics and SK Hynix Close Slightly Lower Amid Market Volatility
Electronic Technology · Semiconductors · yonhap_finance · 2026-09-10
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Shares of Samsung Electronics and SK Hynix fluctuated throughout the session, ultimately closing lower as semiconductor optimism clashed with macro headwinds.
What Happened
Price Action: Samsung Electronics and SK Hynix experienced significant intraday volatility, ultimately closing down 0.19% and 0.16%, respectively. While early trading showed promise driven by semiconductor sector optimism, selling pressure intensified in the afternoon, pulling both stocks into negative territory.
Positive Catalysts: The announcement of OpenAI's new model 'Astra' and the five-day winning streak of the Philadelphia Semiconductor Index provided initial support for both stocks. SK Hynix's ADR performance in the U.S. further fueled investor expectations for a strong domestic session.
Macro Pressures: Conversely, the surge in global oil prices past $100 per barrel and the sharp rise in U.S. 10-year Treasury yields triggered widespread inflation concerns. This macro environment weighed heavily on global markets, prompting significant foreign selling in major Korean tech stocks.
Investor Flows: Institutional investors acted as a stabilizing force by net buying both Samsung Electronics and SK Hynix. However, this was countered by heavy net selling from foreign investors, who offloaded over 3 trillion won worth of shares in the two companies combined, while retail investors showed mixed sentiment.