On October 2, 2025, the South Korean stock market achieved a historic milestone, with the Korea Composite Stock Price Index (KOSPI) finishing the day at a record-breaking closing level of 3,549.21 points, up by a robust 2.7%. This impressive performance contributed to a cumulative weekly gain of 4.8%. The surge was largely fueled by a remarkable rally in chip stocks, particularly following the announcement of cooperation agreements between leading chipmakers Samsung Electronics and SK Hynix with OpenAI. Samsung Electronics' shares witnessed a significant uptick, climbing over 4%, while SK Hynix's stock experienced an even more dramatic surge, soaring over 10%.