South Korea's benchmark KOSPI index closed at a one-week high on Wednesday, finishing 3.8% higher at 6,598.26.
The rally was fueled by a combination of robust earnings from U.S. technology peers and a decline in oil prices, which provided a tailwind for the broader market.
Heavyweight chipmakers led the charge, with Samsung Electronics (005940.KS) and SK Hynix (000660.KS) among the key beneficiaries of renewed investor confidence in artificial intelligence hardware.
The sector's strength reflects a broader resurgence in global semiconductor stocks, as traders digest positive earnings signals from major U.S. firms.
The drop in oil prices also contributed to the market's upward momentum, reducing input costs for energy-intensive industries and improving sentiment across the board.
This dual driver of tech optimism and cheaper energy helped push the KOSPI to its highest closing level in a week.