Samsung, SK Hynix surge to one-year highs after OpenAI deals | Business

SEOUL, Oct 2, 2025 (BSS/AFP) - South Korean tech giants Samsung Electronics and SK Hynix were trading at their highest in a year Thursday after announcing partnerships with OpenAI, driving the country's stock market to a record high. Samsung Electronics, the crown jewel of South Korea's largest chaebol, was up 4.7 percent in early trade, its highest in 52 weeks and the strongest level in nearly five years. SK Hynix, one of the world's largest memory chipmakers, was also trading more than 10 percent higher -- a one-year peak. The rally helped drive South Korea's benchmark KOSPI index past 3,500 points for the first time in history, adding more than 70 points in morning trade. The surge followed Wednesday's announcement...