South Korea's stock market experienced a significant surge on May 21, following a preliminary agreement between Samsung Electronics and its union, which averted a potential strike. The KOSPI index rose by 6.4%, with Samsung's shares climbing nearly 7% and rival SK Hynix gaining 8.4%. The market rally led to a temporary halt in program trading for the KOSPI and KOSDAQ indices. The positive market response was further bolstered by NVIDIA's robust earnings, highlighting strong AI-driven demand for high-bandwidth memory and advanced DRAM. Ha SeokKeun, Chief Investment Officer at Eugene Asset Management, noted that the labor agreement reduces uncertainty, contributing to the market's optimistic outlook.