The South Korean won climbed to a 13-month high following a recent interest rate increase by the Bank of Korea, signaling confidence in the country's monetary policy. This move underscores the central bank's commitment to managing inflation and economic growth.

Meanwhile, the US dollar showed little movement as investors awaited an upcoming speech by Warsh, which could provide clues on future US monetary policy. The cautious stance on the dollar reflects market anticipation ahead of potential signals from key Federal Reserve figures.

For Japanese investors, the won's appreciation highlights shifting dynamics in Asian FX markets, emphasizing the importance of monitoring regional central bank actions amid global monetary tightening trends.