India, Oct. 23 -- Korea Stock Market (KRX) Today (October 23): South Korea's stock market ended a turbulent week under heavy selling pressure on Friday, October 23, as growing concerns about artificial intelligence (AI) spending and rising global oil prices rattled investors. The benchmark KOSPI index closed at 5,420.18, down 2.05%, while the technology-heavy KOSDAQ faced additional pressure from the global semiconductor sell-off.

Samsung Electronics declined, but SK Hynix recovered from its early losses to finish slightly higher.

Investors also watched developments surrounding SK Hynix's decision to halt plans for a potential Solidigm listing and a surge in Brent crude prices to $114 a barrel. The session highlighted how concerns about...