South Korea's Kospi index fell more than 4% on Thursday, leading a broad slide across Asian equity markets.
The sharp decline followed a session of heavy selling in US technology stocks, with memory chipmaker SK Hynix among the major names dragged lower by the sentiment shift.
34% lower on Tuesday, extending a period of volatility driven by overnight losses on Wall Street.
The sell-off marks a significant acceleration in the pressure that has gripped Asian markets this week.
The Kospi had already opened 0.34% lower on Tuesday, extending a period of volatility driven by overnight losses on Wall Street.
Thursday's move reversed any positive sentiment from the previous US trading session, as investors digested the continued weakness in major technology conglomerates.
The decline highlights the persistent linkage between US tech valuations and Asian market performance.