Japanese Yen tumbles past 162.00, hits new 40-year low versus the US Dollar

• USD/JPY rallies to a fresh four-decade peak on Tuesday amid broad Yen weakness.
• The widening US-Japan yield gap continues to weigh on the JPY and underpin the pair.
• Renewed demand for the US Dollar, fueled by Iran-related tensions and expectations of further Fed tightening, adds to the upside momentum.

The USD/JPY pair extends its powerful rally above the key 162.00 mark, reaching a new 40-year high during Tuesday’s Asian trading session. Nonetheless, concerns over potential intervention from Japanese authorities continue to limit additional gains.

Japanese Finance Minister Satsuki Katayama and US Treasury Secretary Scott Bessent recently agreed to coordinate on currency matters if required. In addition, Chief Cabinet Secretary Minoru Kihara reiterated last week that the government stands ready to respond to excessive foreign-exchange fluctuations. At the same time, traders remain cautious about adding fresh bearish positions on the Japanese Yen (JPY) following the Bank of Japan’s (BoJ) increasingly hawkish tone.

Minutes from the BoJ’s June policy meeting revealed that officials discussed rising inflation risks, with some members advocating a faster pace of rate hikes toward neutral levels. Growing evidence of stronger inflationary pressures in Japan further supports expectations for additional policy normalization. Even so, Japanese interest rates remain significantly below those in the US, preserving the attractiveness of carry trades that continue to weigh on the Yen.

On the other hand, uncertainty surrounding US-Iran diplomacy and expectations of further Federal Reserve (Fed) tightening are helping the US Dollar (USD) stabilize after its recent retreat from a 13-month peak, providing additional support for USD/JPY. While US President Donald Trump stated that Iran had sought talks with Washington in Qatar, Iranian officials denied that any negotiations with the US are planned in the near future.