Global Market: South Korean shares surge 6% as SK Hynix earnings fuel AI chip rally

What happened: South Korea's KOSPI surged after SK Hynix reported quarterly results and shareholder return plans, fueling an AI chip rally that also lifted Samsung Electronics. Key numbers: KOSPI rose 337.64 points, or 5.99%, to 5,975.98 as of 0140 GMT. Why it matters: The content says the index would record its biggest single-day percentage rise since July 31 if gains hold. The rally followed Tuesday's Wall Street gains on AI enthusiasm, with markets focused on the September-quarter earnings season and the Fed's policy meeting.

SK Hynix earnings fuel AI chip rally, driving South Korean shares up 6%.

SK Hynix earnings fuel AI chip rally, driving South Korean shares up 6%. — impact context not separately stored; see What changed.