The KOSPI index has seen remarkable growth, skyrocketing past the 6000 mark, primarily driven by substantial increases in stock prices of Samsung Electronics and SK Hynix. As of February 24, Samsung's market valuation increased by approximately 924.8 trillion won, accounting for 34.1% of the overall market capitalization increase of 2711 trillion won. Meanwhile, SK Hynix contributed 21% with a market valuation rise of around 568.4 trillion won. Collectively, these two companies have been responsible for 55.1% of the index's gains since the previous presidential election up until now.

This trend underscores the growing influence of these tech giants, particularly in the semiconductor sector, which has been fueled by skyrocketing demand for AI-related technologies. Despite some volatility—most notably a significant drop in early February—anticipations of a booming performance in semiconductor earnings have buoyed market sentiment. Analysts predict that both Samsung and Hynix will benefit substantially from what is being called an 'AI semiconductor supercycle' this year, with KB Securities estimating Samsung's operating profit to rise by a staggering 290% compared to last year.

The optimistic projections have led to a competitive raise in target stock prices among securities firms, with KB Securities setting Samsung's target at 240,000 won, and SK Hynix’s stock target seeing corresponding increases to up to 1.6 million won. This suggests a robust confidence in the potential for enhanced profitability as markets adjust to increasing semiconductor demands that are opening new avenues for growth in both companies.