The Bank of Japan (BOJ) raised its benchmark interest rate to 1.25% on September 18, 2026, marking a 31-year high not seen since 1995. This 25-basis point increase follows a trend of tightening monetary policy since 2024, driven by rising inflation and a weak yen. The move aligns with recent rate hikes by the US Federal Reserve and the European Central Bank, all responding to inflationary pressures exacerbated by energy disruptions from the Iran war. Despite the hike, the yen weakened slightly, and bond yields fell, reflecting market uncertainty. The decision was split, with two board members dissenting, citing concerns that the economy is not strong enough to justify further tightening.