The daily volatility of the Korean won against the U.S. dollar has risen to its highest level since the COVID-19 pandemic amid heightened tensions in the Middle East, data showed Sunday. The won has fluctuated sharply following the U.S.-Israeli joint attacks on Iran on Feb. 28, with the average daily fluctuation of the won against the greenback reaching 13.2 won as of Friday, according to the economic statistics system of the Bank of Korea. The level of volatility marks the highest since March 2020, when it reached 13.8 won as the COVID-19 pandemic roiled global financial markets. It is also higher than the 9.7 won recorded in April 2025, when U.S. President Donald Trump threatened to impose sweeping tariffs on foreign imports in what he dubbed "Liberation Day." The Korean won was also among the worst-performing currencies, falling 2.81 percent against the U.S. dollar this month alone, according to Yonhap Infomax, the financial data arm of Yonhap News Agency. The decline was steeper than that of the euro (1.69 percent), the Australian dollar (1.24 percent) and the Japanese yen (1.21 perce