South Korea stock market hit by $30.7B foreign investor exodus
In brief
- Foreign investors sold $13.2 billion in a single week mid-May, triggering 4% KOSPI drop.
- Samsung Electronics and SK Hynix absorbed over $6.6 billion in foreign outflows in May.
- KOSPI plummeted 5% on June 5 ('Black Friday'), settling near 8,160 points.
- Korean won fell to 17-year low as cumulative foreign net selling surpassed 103 trillion won.
The Semiconductor Squeeze
The selling isn't random. Foreign net sales in Samsung Electronics and SK Hynix alone exceeded $6.6 billion in a week in May, making the two semiconductor giants the primary targets. Investors are rotating out of Asia's tech champions at a moment when valuations and sentiment have shifted.
June 5 delivered the most dramatic single-session blow. The KOSPI plummeted more than 5% on what traders quickly dubbed "Black Friday," settling around 8,160 points. That same day, the Korean won fell to a 17-year low against the dollar, a double whammy that rattled confidence in the broader economy.
What's Driving the Exodus?
By early June, cumulative foreign net selling on the KOSPI had surpassed 103 trillion won for the year, already exceeding historical levels. The causes are layered. Profit-taking from earlier AI rallies has been cited as a key driver, but it's not the only one. Rising US Treasury yields are pulling capital westward. Positioning ahead of major US listings is redirecting flows. And geopolitical tensions add another layer of risk premium.
Domestic Korean retail investors—known locally as "ants"—have stepped in as counterbalancing buyers, providing some support. But their firepower has limits, and the scale of foreign withdrawals suggests the floor may not hold much longer.
The real question isn't whether foreign investors will return. It's whether their absence signals a deeper reassessment of South Korea's growth story or simply a tactical rotation in a volatile year.
