South Korea’s KOSPI index closed down roughly 2.3% after a policy aide floated the idea of taxing AI-sector profits and redistributing the proceeds to citizens. At its worst, the index had plunged more than 5%, hitting a low of 7,421.71 before buyers stepped in to limit the damage.
The catalyst was a proposal from Kim Yong-beom, who suggested that returns generated by the AI industry, built on South Korea’s national industrial base, should be partially shared with the public through a so-called “citizen dividend.” Investors interpreted that as a direct threat to the country’s most valuable companies and sold accordingly.
Samsung, SK Hynix bear the brunt
Samsung Electronics and SK Hynix together account for nearly half of the KOSPI’s total market capitalization. When a government figure starts talking about siphoning off AI profits, those two names are essentially the conversation.
Both stocks drove the index lower as traders priced in the worst-case scenario: targeted taxation on the very companies that have turned South Korea into a global semiconductor powerhouse.
Clarifications helped, but didn’t fix the damage
After the initial panic, officials walked back the most alarming interpretation. The citizen dividend, they clarified, would be funded by additional tax revenue generated from AI-driven economic growth, not by reaching directly into corporate coffers.
That distinction matters, at least on paper. A tax on “excess profits” is very different from a share of organic tax revenue growth. The first is punitive. The second is closer to standard fiscal policy.
Nobody defined what “excess tax revenue” actually means. The partial recovery from the intraday low of 7,421.71 to a 2.3% closing loss suggests some investors bought the clarification. But the gap between that closing level and where the index started the day shows that plenty of others didn’t.
Context and what it means for investors
The timing makes this episode especially notable. JPMorgan had recently raised its KOSPI target, a signal that institutional confidence in South Korean equities was building. That optimism evaporated in a single session, replaced by a reminder that policy risk can overwhelm fundamentals overnight.
For international investors with exposure to Samsung or SK Hynix through ETFs or direct holdings, the episode is a stress test. Both companies are essential links in the global AI supply chain. Samsung manufactures high-bandwidth memory chips critical for AI training, and SK Hynix is Nvidia’s primary supplier of HBM chips.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.

1 hour ago
2
















English (US) ·