BOJ Rate Hike Fails to Boost Yen as Global Interest Rates Diverge

The Bank of Japan (BOJ) raised its policy rate by 0.25 percentage points to 1.25% on September 18, 2026, a move aimed at curbing inflation risks.

However, the Japanese Yen did not strengthen against the US Dollar as expected; instead, it weakened, with the USDJPY pair climbing 1.4131% to 157.89 from 155.69 the previous day.

The BOJ's communication and policy divergence with the US Federal Reserve contributed to this unexpected outcome.

BOJ Governor Kazuo Ueda's post-decision briefing did not provide clear forward guidance, suggesting that easy monetary conditions would be maintained to support economic growth.

This cautious stance reinforced market views of dovishness within the BOJ.