Japan bond yields rise as oil gains stoke fresh inflation concerns

Japan government bond yields climbed sharply as rising crude oil prices and Middle East supply risks stoked fresh inflation concerns and increased speculation that the Bank of Japan may tighten policy further. The 5-year JGB yield hit a record high, while the 2-year rose to its highest since 1995, reflecting stronger pricing for a September BOJ hike. However, the yield rise has not yet translated into yen strength because external forces—especially firmer U.S. yields, a stronger dollar, and higher oil prices—continue to dominate FX trading. Brent settled at $88.91 a barrel and WTI at $83.20, reinforcing the inflation backdrop. Markets now look to U.S. CPI data as the next major catalyst for global yields and USD/JPY direction.