Svmuu News: South Korea's KOSPI index opened 425.23 points higher on Monday, June 15, a gain of 5.23%, at 8,548.85 points. The Nikkei 225 index opened up 858.13 points, or 1.30%, at 66,878.17 on Monday, June 15. In addition, shares of SK Hynix and Samsung Electronics both rose by more than 6%.