Samsung and SK Hynix posted their biggest weekly drops since the 2008 crisis. Foreigners sold 8.8 trillion won of them in one week.
As of today, Samsung was down 1.39% at 212,500 won and SK Hynix was down 4.25% at 1.218 million won.
Last week foreigners net-sold more than 11.2 trillion won on the KOSPI. Of that, about 8.8 trillion won was Samsung and SK Hynix. The two stocks fell 17.8% and 24.3% in the week, the largest weekly drops since the 2008 financial crisis.
The backdrop was a Nasdaq drop of more than 2% on the 16th, credit worries around the AI data-center firm CoreWeave, and DeepSeek’s new high-efficiency AI model, which raised questions about high-performance chip demand.
Samsung’s buyback has ended and retail buying power has weakened, so the base that could absorb foreign selling is thinner.
On the 19th foreigners and institutions turned to net buying and the KOSPI cut its early drop from 3.17% to the 1% range.
High-bandwidth and equipment names also fell hard. Hanmi Semiconductor, EO Technics, Techwing, and others were down 4% to 7%. One exception was Sec, which jumped 13% on its first commercial order for an in-line X-ray inspection tool into a global packaging firm’s wafer-level packaging line.
Broker views note a possible technical bounce after the sharp drop, but also warn of a W-shaped path that retests the low. CoreWeave’s credit risk is still unresolved, so sustained foreign flow recovery is the key variable for a semiconductor rebound.
Memory spot prices remain firm. DDR5 16Gb continued higher while DDR4 was mostly flat. Hana Securities still sees a larger-than-expected fourth-quarter DRAM price rise on tight supply and keeps an overweight on semiconductors and equipment.
A weekly 24% drop is not a supply glut.
If foreigners already sold 8.8 trillion won of the two leaders and spot DDR5 is still rising, does the next move come from more credit headlines, or from actual contract pricing that has not cracked?
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