---
title: U.S.-Japan Yen Intervention Boosts Currency
description: "Via Wall Street Journal Markets: The U.S. and Japan carried out their **first joint effort in a generation** to boost the yen on Friday after the currency sl..."
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---

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### U.S.-Japan Yen Intervention Boosts Currency

Wall Street Journal Markets • August 3, 2026 at 5:03 AM ET

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The U.S. and Japan carried out their **first joint effort in a generation** to boost the yen on Friday after the currency slid to a **40-year low**, threatening to push up U.S. interest rates and disrupt Japanese investment flows into America. The yen had weakened to nearly **164** to the dollar, its weakest level since **1986**, before the coordinated intervention.

Earlier solo attempts by Tokyo had failed, fueling anxiety over faster inflation and a swelling energy import bill as conflict with Iran squeezes oil supplies. By Monday afternoon in Asia, the yen had recovered to around **156** per dollar. Treasury Secretary **Scott Bessent**, who built his fortune trading currencies for **George Soros**'s firm, declared the administration would not hesitate to intervene again to "correct the substantial undervaluation of the Japanese yen."

The move signals President **Trump**'s willingness to aid allies battling financial markets, a departure from the hands-off stance long favored by U.S. policymakers except in moments of exceptional peril. Bessent emphasized on X that "The Trump administration delivers for America's trusted partners."

[Read original article](https://www.wsj.com/finance/currencies/the-worries-that-drove-uncle-sam-to-buy-yen-4ff554f1)

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