Asian markets retreat, with Korean shares slumping despite an AI-led rebound on Wall St

Asian markets retreated with South Korea's Kospi dropping nearly 5% despite a Wall Street AI-led rebound. Samsung Electronics and SK Hynix shares fell sharply, with analysts citing foreign investor rebalancing and AI sector volatility. SK Hynix plans a $28 billion Nasdaq listing, while other Asian indices like the Nikkei and Hang Seng also declined.