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South Korea shares hit fresh record high on extended tech rally

AuthorAyushman Ojha
Published 21/10/2025, 05:04
Updated 21/10/2025, 10:30
© Reuters
KS11
1.56%
000660
0.52%
005930
1.13%

Investing.com - South Korea’s benchmark stock index rose to a fresh all-time high on Tuesday, powered by an extended rally in technology shares and overseas investor inflows. 

The KOSPI index jumped as much as 2.1% to a record high of 3,893.06 points on Tuesday, but later pared gains to trade 0.7% higher as of 03:49 GMT.

The index has surged nearly 12% so far in October.

Chip-makers have led the charge, with Samsung Electronics (KS:005930) and SK Hynix (KS:000660) posting strong gains amid a global AI-driven memory-chip boom.

Samsung shares rose as much as 2% to an all-time peak on Tuesday, while SK Hynix climbed as much as 3.4% to an over-25-year high. Both stocks pared some gains after early surge.

Investors were also buoyed by optimism around a possible trade deal between Seoul and the United States, and a weakening won that lifted the competitiveness of Korean exporters.

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