Japan and South Korea Coordinate Currency Intervention

Japan and South Korea surprised traders by jointly intervening in the currency market to support their currencies. The intervention led to a significant rise in the yen, its biggest gain in nearly two years.

The coordinated effort may have received support from the United States, with sources indicating that Washington intervened in the yen market on Friday. This aligns with market expectations of further action from authorities after the New York Fed conducted rate checks on Thursday.

Lee Hardman noted that American authorities' actions underscored market participants' nerves about a possible intervention. The Bank of Japan detected signs of yen selling amounting to up to $58.97 billion, though exact figures have not been released yet.