South Korean and Japanese Stocks Hit Record Highs Amid Tech Surge

Stock markets in South Korea and Japan experienced a significant rally on Wednesday, May 27, 2026, both hitting record highs amid a wave of positive investor sentiment. The surge was fueled by expectations of a ceasefire agreement between the United States and Iran, coupled with a strong performance in the technology sector.

In South Korea, the KOSPI index saw a dramatic increase, climbing over 5% to close at 8,450.26 points. A major driver of this rally was SK Hynix, whose stock price jumped more than 11%. The semiconductor giant's market capitalization surpassed the $1 trillion mark, driven by soaring demand for high-bandwidth memory (HBM) chips used in AI servers and accelerators. Samsung Electronics also saw gains, rising more than 5%.

Japan's Nikkei 225 index also achieved a historic milestone, surging 1,432 points to reach 66,428 points, marking the first time it has broken above the 66,000-point level. The strong performance in both Asian markets reflects a broader optimism, with investors closely watching geopolitical developments and the robust growth in technology-related industries.

The rally in SK Hynix is particularly noteworthy, with its stock price appreciating approximately 250% since the beginning of the year. This exceptional performance underscores the booming demand for advanced memory chips essential for artificial intelligence applications.

Both indices opened higher and maintained their upward momentum throughout the trading session, indicating strong buying interest. The combined strength of these major Asian economies' stock markets signals a positive outlook for the region's financial landscape, driven by technological innovation and easing global tensions.