Won-Dollar Rate on Brink of Breaking Below 1,400 Won Amid Coordinated Intervention and Weak US Interest Rates

The South Korean won-dollar exchange rate is on the verge of breaking below 1,400 won for the first time in 11 months, amidst a sharp decline fueled by coordinated efforts to counter East Asian currency weakness and fading expectations of US interest rate hikes.

The won's strength has been driven by unusual market intervention by US and Japanese foreign exchange authorities, who jointly purchased yen on July 31st. This move marked the first coordinated intervention in 28 years since the 1998 Asian financial crisis. South Korea's foreign exchange authorities have also maintained a 'triangular cooperation' framework with their US and Japanese counterparts.

The weakening prospects for US interest rate hikes, triggered by unexpectedly weak employment data on August 7th, have further pulled down the dollar's value. The Dollar Index, which measures the greenback against a basket of six major currencies, fell to an intraday low of 99.399.

Large-scale capital inflows tied to SK Hynix's American Depositary Receipt (ADR) listing have also contributed to the won's strength, with concentrated dollar selling by South Korean exporters rapidly shifting the market's supply-demand bias toward won buying.