The Japanese yen remained under pressure against the U.S. dollar on September 22, trading around 157.33 per dollar as global interest-rate differences continued to favour the dollar.
Reuters reported that several major central banks have adopted or maintained relatively hawkish policy stances, while Japan’s interest rates remain lower despite the Bank of Japan’s recent tightening. That gap continues to make yen-funded carry trades attractive to some investors.
The Bank of Japan recently raised its policy rate, but market participants have been watching how quickly policymakers are prepared to tighten further. Reuters said the yen’s weakness reflects both the remaining rate differential and disappointment among some investors who had expected a more forceful shift in Japanese monetary policy.
The currency’s decline has also kept the possibility of official intervention in focus. Japanese authorities have repeatedly signalled that they are monitoring foreign-exchange moves, but no new intervention was confirmed in the latest Reuters report.
Currency intervention, if it occurs, can produce sharp short-term moves, but the yen’s broader direction will also depend on monetary policy, inflation, global risk appetite and the gap between Japanese and overseas interest rates.
The latest move is therefore a market development rather than evidence of a new policy decision by Japanese authorities.


