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US and Japan Confirm Joint Yen Intervention Worth $59 Billion

By Markets Desk · 2026-09-20 · 1 min read
A traditional Japanese paper umbrella standing on wet stone pavement.
Illustration: Tradingbird

Japan's Finance Minister will announce joint currency intervention with the US worth up to $58.97 billion on Monday.

Japan will confirm on Monday that Tokyo and Washington jointly intervened in currency markets. This action aims to halt the yen's decline to its lowest level against the dollar since 1986. The combined operation represents the first coordinated effort between the two nations in fifteen years.

Bank of Japan data indicates that authorities sold up to $58.97 billion in dollars to support the yen. The intervention occurred during New York trading hours on Thursday. This move directly addresses the currency's slide to 40-year lows.

Scale of Joint Currency Action

The reported figure of $58.97 billion marks a significant escalation in market support. It reflects a determined effort to defend the currency from historic weakness. This scale of action signals a shift from unilateral Japanese measures to bilateral cooperation.

US Treasury Secretary Scott Bessent reportedly prepared a plan to purchase between $5 billion and $10 billion in yen. He instructed banks to stand ready for further action. This coordination suggests that authorities view the recent volatility as a shared concern.

Monetary Policy and Market Signals

The Bank of Japan held its policy rate steady on Friday. However, Governor Kazuo Ueda signaled a high probability of a near-term rate hike. This potential increase aims to narrow the interest rate differential with the United States.

Japan's Ministry of Finance stated it has access to the Federal Reserve's repurchase facility. This tool provides liquidity support during periods of high demand. The statement underscores the depth of the institutional coordination between the two central banks.

Impact on Global Financial Stability

Rising US Treasury yields remain a primary driver of dollar strength. The joint intervention seeks to stabilize the exchange rate amid these pressures. Continued weakness in the yen could reignite volatility in both Japanese and US bond markets.

Sources from GN auto markets/forex: currency intervention confirm the timing of the announcement. The operation was described as ongoing at the time of reporting. Markets should expect continued scrutiny of USD/JPY levels in the coming days.

Based on reporting by investinglive.com, compiled by the Tradingbird desk.

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