New Delhi, July 13 -- Shares of South Korean memory chip giant SK Hynix plunged 15% during Monday's trade (13 July) in Seoul, marking their biggest one-day decline on record and dropping to a one-month low, as investors appeared to book profits following the company's blockbuster Nasdaq debut.

The sharp sell-off also coincided with broad-based weakness across global semiconductor stocks, as investors reassessed the recent AI-driven rally and turned cautious ahead of the start of the US second-quarter earnings season.

The decline weighed heavily on South Korea's equity market, with the Kospi tumbling about 9%, briefly triggering a circuit breaker-a temporary trading halt designed to curb panic selling during periods of extreme volatility...