Shares of SK Hynix soared by as much as 11% on Wednesday, propelling the South Korean chipmaker's market capitalization above the $1 trillion mark as investors continued to flock to semiconductor stocks linked to artificial intelligence (AI) applications [1]. This surge extends a remarkable rally, with SK Hynix shares having climbed approximately 250% since the beginning of the year, driven by robust demand for high-bandwidth memory chips essential for AI servers and accelerators [1]. SK Hynix has solidified its role as a key supplier to Nvidia, a leading AI chip company, further embedding itself in the global AI supply chain [1].
The rally in SK Hynix shares follows closely on the heels of domestic competitor Samsung Electronics, which also recently surpassed the $1 trillion market capitalization threshold. On the same day, Samsung Electronics' shares rose by over 6% [1]. Together, SK Hynix and Samsung Electronics now represent more than 40% of South Korea's benchmark Kospi index, highlighting the index's increasing dependence on the performance of AI-related semiconductor and memory chip stocks [1]. The Kospi index itself has nearly doubled in value since the start of the year, according to data from LSEG [1].
Analysts have cautioned that this growing concentration in a few large chipmakers could amplify market volatility and expose the Kospi to greater risks, such as potential supply chain disruptions or a slowdown in global data center investment [1].
CONCLUSION
SK Hynix's leap past the $1 trillion valuation underscores the powerful impact of AI-driven demand on the semiconductor sector and the broader South Korean market. However, analysts warn that the Kospi's heavy reliance on a few chipmakers could increase volatility and vulnerability to sector-specific risks.