Foreign exodus deepens despite Korea's red-hot chip power
South Korea's KOSPI index, previously the best-performing major index, has lost nearly half its gains in the second half due to record foreign net selling of 227.6 trillion won. Despite strong fundamentals, including record earnings from Samsung Electronics and SK hynix, foreign investors are questioning the sustainability of chip profits and AI-driven growth. The KOSPI closed down 3.65% on Monday, its steepest daily decline since September 2.
How this was made

The 30-second read
Why it matters
The article highlights fresh guidance from Samsung and heavy foreign outflows from both Samsung and SK hynix, indicating a shift in investor sentiment toward Korean semiconductor exposure.
Market read
The fresh guidance and foreign selling pressure suggest near‑term downside risk for Korean chip stocks and could ripple through global AI‑related equities.
What to watch
Potential policy support for AI and upcoming domestic stimulus could mitigate the impact of foreign selling.
Background
South Korea's KOSPI has reversed from a strong first‑half performance to a steep decline in the second half, driven by record foreign net selling despite record earnings from its chip giants.
Ticker impact
Samsung Electronics guided Q3 operating profit of 107.4 trillion won; shares fell about 2.4% on the announcement day amid record foreign net selling.
likely pressure as the market prices in weaker demand outlook and reduced buy‑back support
Guidance is fresh but modestly below expectations; combined with heavy foreign outflows and the end of a large buy‑back tranche, downside risk is elevated.
SK hynix accounted for the bulk of foreign net selling (16.47 trillion won) and has completed about 83% of its 40 trillion won share‑repurchase program.
likely pressure from reduced buying support and lingering concerns over AI demand sustainability
Heavy foreign outflows and the tapering of buy‑back support create a bearish bias despite strong earnings backdrop.
Market effects
Semiconductor sector faces heightened scrutiny as foreign investors question the durability of AI‑driven demand.
KOSPI index under pressure, with the KOSPI 200 volatility index spiking, reflecting broader market anxiety in South Korea.
Foreign outflows from Korean chip makers may influence global AI supply chain sentiment and affect related equities worldwide.
Counterpoint
If AI demand remains robust, the current sell‑off could be an overreaction, presenting a buying opportunity at lower valuations.
Key entities
- companySamsung Electronics
Korean semiconductor leader; provided Q3 operating profit guidance.
- companySK hynix
Korean memory chip maker; major recipient of foreign net selling.




