South Korean stocks surge by record 17% as SK Hynix jumps 28% and Samsung gains 26% amid AI optimism
Vishnu VarathanChey Tae-wonMizuhoSamsung ElectronicsSK Hynix Inc.Bank of Japan

South Korean stocks surge by record 17% as SK Hynix jumps 28% and Samsung gains 26% amid AI optimism

South Korean stocks surged by a record 17%, with SK Hynix jumping 28% and Samsung gaining 26%, driven by optimism in AI investments, regulatory support, and a significant share purchase by SK Group Chairman Chey Tae-won, marking a strong recovery from recent market declines.

Moneycontrol.com+1 source31 July 2026 · 05:25 UTC
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South Korea's stock market experienced a remarkable surge, with the benchmark Kospi leaping by 17%, marking its highest level in about a month.12

SK Hynix Inc. led the charge with a record 28% increase, while Samsung Electronics followed closely with a 26% gain.

This surge was largely attributed to renewed optimism surrounding AI investments, bolstered by regulatory support and positive market sentiment.3

Chey Tae-won, Chairman of SK Group, made headlines with a personal investment of 3,620 shares in SK Hynix, valued at approximately 4.8 billion won ($3.2 million).

This purchase was seen as a strong vote of confidence in the company's future, especially after a period of significant decline.

The South Korean government also announced plans to inject around $13.9 billion into its sovereign wealth fund for strategic AI investments, further fueling market optimism.5

Local investors reacted positively to these developments, contributing to a broader rally in Asian markets.4

The Kospi's impressive recovery reversed earlier losses, as investors began to believe that the recent selloff in AI-linked assets might be nearing its end.

Overall, the combination of corporate confidence, government support, and a favorable market environment has set the stage for a potential rebound in South Korea's tech sector.

Key Insight
“The Kospi index soared as much as 15% to its highest level in about a month, driven by regulatory support and positive AI market reports. Additionally, SK Group Chairman Chey Tae-won's purchase of 3,620 shares in SK Hynix, valued at approximately 4.8 billion won ($3.2 million), signals confidence in the company's future.”
CuriousCats studied:
1
Moneycontrol.com
“The benchmark Kospi soared as much as 15% to the highest level in about a month.”
Moneycontrol.com →
2
reuters.comreuters.com
“Asian markets rallied hard with Wall Street on Friday as South Korea's ​battered market made a record comeback, stirring hopes that the recent selloff in AI-linked assets may be near an end.”
reuters.com →
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