Samsung SK Hynix Reverse: KOSPI Hits 5,500, Then Closes Down 0.98%

Yeouido Han River Seoul Bamseom Pixabay 1602524 (samsung sk hynix)

Nvidia’s founder is out and Nvidia opened 13.08% lower in New York, yet Samsung and SK hynix rallied in Seoul the next morning while foreign investors bought about 200 billion won of KOSPI stocks. Here are the intraday numbers, why traders read it as an Nvidia-only problem, and the November 18 (KST) date that decides what happens next.

KOSPI Crashes 16.72% in a Month: Is KOSPI 5000 Slipping Away?

Yeouido, Seoul's financial district where the Korea Exchange runs the KOSPI (KOSPI 5000)

KOSPI closed at 5,316.77 on November 11, 2026, down 16.72% in one month (Yahoo Finance). That leaves the KOSPI 5000 line about 317 points below, even after today’s 1.48% bounce. Bank deposits aren’t at risk from this. Index fund holders are taking a real loss, and the next US inflation print plus a close at or above 5,000 will decide whether the bounce lasts.