Japan and U.S. Team Up to Defend the Yen: A Coordinated Stance Against Currency Decline

Last updated: August 3, 2026 2:59 am

3 weeks ago

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Japan and the United States have taken joint action in currency markets to halt the yen’s slide to multi-decade lows. This coordinated intervention, the first in 15 years, aims to stabilize the currency and curb rising import costs and inflation.

The move follows previous interventions by Japan and signals a broader policy coordination, with the U.S. also indicating its willingness to support the yen. The Bank of Japan has also hinted at a potential interest rate hike, further influencing market sentiment.

Japan and U.S. Jointly Intervene to Stabilize the Yen

In a significant move to curb the yen's steep depreciation, Japan is set to announce a coordinated intervention with the United States. This rare bilateral action aims to mark a turning point for the currency, which has fallen to four-decade lows, impacting import costs and domestic inflation.

Joint Action in Currency Markets

Finance Minister Satsuki Katayama is expected to confirm on Monday that Tokyo and Washington collaborated last week in currency markets to halt what they deem excessive declines in the yen. This operation, described by officials as "still ongoing," marks the first joint intervention in 15 years. Market sources indicate that both Japanese and U.S. authorities engaged in yen purchases to support the beleaguered currency.

Japan and U.S. Team Up to Defend the Yen: A Coordinated Stance Against Currency Decline — The yen held steady on Tuesday, ahead of a parliament vote in Japan later in the day. Image Credit: Alan Schein Photography | The Image Bank | Getty Images

The yen's relentless slide has exacerbated import prices, fueling inflation and negatively affecting households and Prime Minister Sanae Takaichi's approval ratings. Bank of Japan data suggests Japan may have sold as much as $58.97 billion to buy yen during its intervention in New York markets on Thursday, with another suspected market foray on Friday.

Signs of Broader Policy Coordination

Further underscoring the coordinated effort, the U.S. Treasury informed several banks of its potential intervention in the yen market on Friday. Treasury Secretary Scott Bessent's handwritten notes, observed at a cabinet meeting, included a directive to "Buy Japanese Yen (JPY) $5-10 bil," indicating the U.S. administration's focus on the currency's valuation.

In line with Bessent's past remarks advocating for higher Japanese interest rates, the Bank of Japan provided its clearest indication yet of an impending rate hike. Although monetary policy remained steady on Friday, the signal suggests a potential shift in policy direction. This coordinated stance extends beyond the U.S. and Japan, with South Korea also stepping in to buy its won currency on Thursday.

The dollar concluded trading on Friday around 157.60 yen, a recovery from its earlier weekly peak near 164 yen, the highest level since 1986. Previous interventions by Japan in April and May, along with the Bank of Japan's June rate hike to 1%, had provided only temporary relief for the struggling currency.