KOSPI Drops 5% as China’s CXMT Chip Advance Hits Samsung and SK Hynix
South Korea’s KOSPI fell practically 5% to six,100 on Tuesday morning as Chinese chip progress hit Samsung and SK Hynix. The two chipmakers maintain greater than half the index by market worth.
The Korea Composite Stock Price Index (KOSPI) extends a 3.7% slide on Monday and sits 10.1% decrease over 5 days. Even so, it stays up 44.89% for 2026.
Why Is a Chinese Memory Maker Shaking Korean Stocks?
ChangXin Memory Technologies (CXMT), China’s largest reminiscence maker, reported progress over the weekend on a denser 4F² chip design.
It’s been reported that TrendForce estimates the design might raise reminiscence density by 30% to 50%. CXMT goals to ship server reminiscence constructed on it by year-end, a higher-value market the place Samsung and SK Hynix compete.
Samsung Electronics and SK Hynix every fell roughly 5% by 9:13 a.m. in Seoul. Foreign buyers offered a internet 341.4 billion gained of shares, whereas people and establishments purchased.
Micron fell 3.9% and Sandisk 6% in US buying and selling in a single day, Bloomberg knowledge confirmed.
Monday’s slide additionally mirrored overseas promoting and the near-completion of chipmaker share buybacks, SBS News reported.
Does CXMT’s Progress Justify a Selloff This Size?
A Korea Times report says CXMT nonetheless struggles to stabilize yields on high-bandwidth reminiscence. Samsung and SK Hynix already pattern the newer HBM4E era.
CXMT held about 8% of worldwide DRAM income within the first quarter, per Counterpoint Research. Samsung led with 38%, SK Hynix adopted with 29%, and Micron held 22%.
Korean chip shares have flinched at CXMT earlier than. The KOSPI fell greater than 8% and triggered a circuit breaker after the corporate’s July debut in Shanghai.
Kiwoom Securities researcher Han Ji-young anticipated dip shopping for to spark a rebound throughout the session. The index was nonetheless down 4.06% at 9:49 a.m. in Seoul.
Samsung and SK Hynix pushed the KOSPI past 9,000 in June. The index now trades greater than 30% beneath that mark.
Because two shares maintain half the benchmark, doubts about their DRAM dominance now transfer the entire market.
The submit KOSPI Drops 5% as China’s CXMT Chip Advance Hits Samsung and SK Hynix appeared first on BeInCrypto.
