PANews reported on November 5th that South Korean stocks plunged more than 4% on Wednesday, continuing the trend of a sharp decline in Wall Street driven by concerns about overvaluation and an artificial intelligence bubble. The KOSPI index fell 135.79 points (3.29%) within the first 15 minutes of trading, dropping below 4000 points again after more than a week of gains. Market leader Samsung Electronics fell 4.29%, its chip manufacturing rival SK Hynix fell 4.78%, and Hyundai Motor and Hanwha Aerospace both fell more than 3%. Overnight, major U.S. stock indexes closed lower, with blue-chip tech stocks such as Nvidia and Palantir declining due to concerns about an AI bubble, and Wall Street executives suggesting the market might pull back for further gains.