{固定描述} South Korea's benchmark Kospi index suffered a dramatic 6% decline on Friday, erasing recent gains after a record rally pushed stock valuations to historically high levels. The selloff was led by heavy losses in AI chip giants Samsung Electronics and SK Hynix, exposing the market's concentrated dependence on a handful of semiconductor names. Global macroeconomic headwinds also compounded the weakness.
South Korea's Kospi Tumbles 6% as AI-Fueled Rally Reverses Sharply - {财报副标题}
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