SK Hynix's Seoul shares posted their biggest one-day fall in nearly two decades on Monday, tumbling more than 15%, as investors unwound gains from a scorching rally following the company's Nasdaq debut last week. The company's U.S.-listed shares dropped 7.9% to $154.7 in early trading after jumping more than 12% in their Nasdaq debut on Friday.
The declines in SK Hynix's shares, alongside those of rival chipmaker Samsung Electronics, contributed to a 9% plunge in South Korea's Kospi, triggering a 20-minute trading halt.
