The yen experienced a sharp upswing in New York foreign exchange markets on July 30, briefly reaching the 158 yen per dollar level.

This surge came after a prolonged period of dollar buying, driven by rising inflation expectations fueled by uncertainty in the Middle East and higher international oil prices. Additionally, growing concerns that Japan's expansionary fiscal policies could further increase the national debt burden had consistently pressured the yen.

Between late April and May, the Japanese government and the Bank of Japan implemented a combined currency intervention totaling approximately 11.7 trillion yen, but this effort failed to reverse the yen's weakening trend. As the yen continued to slide, market participants were on high alert for potential further intervention by Japanese authorities.

The Bank of Japan is scheduled to announce the outcome of its monetary policy meeting on July 31, with market forecasts widely expecting the central bank to maintain its current policy interest rate.