The South Korean won has depreciated nearly 6% against the U.S. dollar year-to-date, marking a significant deterioration in the currency's value.

The decline is being driven by a sustained exodus of foreign capital from local equity markets, as overseas investors continue to reduce their exposure to Korean stocks.

Central bank data released Sunday indicates that the selling pressure from foreign investors has been a primary factor in the won's weakness.

The currency's slide reflects broader concerns about emerging-market assets amid shifting global risk sentiment.

The won has tumbled to its weakest level against the greenback in recent months, underscoring the intensity of the capital outflow.

This development adds to ongoing pressure on the Korean currency, which has faced headwinds from both domestic economic factors and external market dynamics.