CurrenciesSamsung, SK Hynix up over 20%, Kioxia bid-only as Microsoft results reignite AI optimismThe yen surged against the dollar, apparently due to intervention late Thursday night. © ReutersAKANE OKUTSU and JADA NAGUMOJuly 31, 2026 12:10 JSTUpdated on July 31, 2026 13:56 JSTTOKYO -- The yen slipped back into the 160 range against the dollar in Tokyo on Friday as an overnight rally to 158, apparently triggered by Japanese currency intervention, was offset by commercial demand for dollars when trading got underway in Japan.