Kospi Rockets 7% as SK Hynix's Sevenfold Profit Surge Ignites AI Stock Rebound

South Korea's benchmark Kospi index soared 7% on [date] after SK Hynix, the country's leading chipmaker, reported a sevenfold surge in quarterly profit and unveiled a $45 billion shareholder return program. The announcement, made during the company's earnings release, triggered a rally in semiconductor and AI-related stocks across the region.

SK Hynix's profit jump reflects booming demand for high-bandwidth memory (HBM) chips used in artificial intelligence applications. The $45 billion return plan, which includes dividends and share buybacks, signals confidence in sustained cash flow. The Kospi's gain was its largest single-day rise in [time period], with chipmakers leading the advance.

The results are likely to bolster investor confidence in the AI supply chain, which has faced volatility over concerns about demand sustainability. Analysts suggest that SK Hynix's strong outlook could spur similar gains in global tech stocks, particularly in the U.S. and Taiwan. The South Korean government welcomed the news as a sign of the country's technological competitiveness. Next steps include monitoring whether the rally extends to other sectors and how global chip demand evolves in the coming quarters.