The Japanese yen dropped significantly in the New York foreign exchange market on the 22nd. Driven by expectations of interest rate hikes by the U.S. Federal Reserve, investors shifted toward selling yen and buying dollars. The currency briefly fell to the 161.90 range per dollar, approaching its lowest level in approximately 39 and a half years. Following this decline, the market experienced volatile swings as traders began buying back the yen. This reaction was fueled by growing concerns that the Japanese government and the Bank of Japan might intervene in the market. Consequently, the exchange rate showed erratic movements throughout the session.