Global Market: South Korea's Kospi jumps 6% as AI chipmakers lead broad market rebound

South Korea's KOSPI surged 6.03 percent or 406.60 points to 7,154.55 in early trading, led by AI chipmakers with SK Hynix up over 9 percent and Samsung Electronics gaining 6.6 percent. The rally, which triggered the KOSPI sidecar mechanism to pause programme trading for five minutes, mirrored a strong overnight rebound in US tech stocks with the Philadelphia Semiconductor Index rising more than 5 percent. Foreign investors were net buyers of 1.75 trillion won (about USD 1.18 billion), bringing weekly cumulative purchases to 2.71 trillion won.