The South Korean won depreciated against the US dollar in overnight trading. This decline followed the release of stronger-than-expected US Producer Price Index (PPI) data. The PPI figures indicate persistent inflationary pressure in the US economy, bolstering the dollar. Consequently, the dollar-won exchange rate experienced increased upward pressure. The won closed at 1,531.60 against the dollar. Analysts anticipate continued volatility in the currency pair due to ongoing economic data releases and Federal Reserve policy expectations.