Svmuu News: According to data from MSX.COM, the Nikkei 225 Index closed up 2,091.07 points, or 3.26%, at 66,232.19 on July 21. South Korea’s KOSPI index closed up 231.68 points, or 3.56%, at 6,747.95 on July 21. SK Hynix closed up 4%, and Samsung Electronics rose 6.1%.