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KOSPI Rebounds to Close at 6,830 as Samsung and SK Hynix Buybacks Offset Geopolitical Fears

Electronic Technology · Semiconductors · yonhap_finance · 2026-09-01

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The KOSPI index recovered from early losses driven by Middle East tensions, ending higher as aggressive corporate share buybacks supported the market.

What Happened

Market Performance: The KOSPI index opened lower due to rising geopolitical tensions in the Middle East, dipping as low as the 6,730 level during intraday trading. However, a late-session rally fueled by share buybacks from major semiconductor firms helped the index close up 0.23% at 6,835.80.

Investor Flows: While retail, foreign, and institutional investors were net sellers, the 'other corporate' category acted as a major buyer, net purchasing over 1.6 trillion won. This buying streak, driven by Samsung Electronics and SK Hynix's share repurchase programs, has now continued for ten consecutive trading sessions.

External Factors: Global market sentiment remained fragile as U.S. indices fell and both oil prices and Treasury yields spiked overnight. Despite these headwinds, positive domestic data, including record-high semiconductor exports for August and strength in U.S. tech stocks, provided a floor for the Korean market.

Sector Highlights: Semiconductor giants Samsung Electronics and SK Hynix successfully pivoted to positive territory, while SK Innovation surged on news of a new battery cell contract. Conversely, the KOSDAQ index struggled, falling 1.56% as foreign and institutional selling pressure outweighed individual buying.

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