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Yen Slides to ¥158.5, Halving July Intervention Gains

8/7/2026

47 8 Full Breakdown

Summary

Yen Falls

The yen fell to ¥158.5 per dollar on Friday, erasing half the gains from the July 31 U.S.-Japan intervention.
The July 31 operation bought yen worth $34 billion after $53 billion was spent, with Treasury Secretary Scott Bessent and top currency official Atsushi Mimura saying authorities ready to intervene.
Index swaps show a 60 % chance of a Bank of Japan hike by September, while a weak U.S. payroll report pushed the yen to ¥156.68.

Summary

Japan Debt Crisis

Toyota Motor revised its FY2027 exchange-rate forecast to 160 yen per dollar, up from 150.
Prime Minister Sanae Takaichi’s November $135 billion stimulus includes household energy subsidies as inflation rises.
Japan’s public debt now exceeds 200 % of GDP, with some estimates at 248 %, raising fiscal risk.
Analysts warn that selling Japanese holdings of U.S. Treasuries to support the yen could lift U.S. bond yields and mortgage rates.

Summary

Japan Buys Yen

Japan bought 6.28 trillion yen on April 30, the largest one-day yen purchase on record.
The intervention spanned three days—April 30, May 4 and May 6—during Golden Week’s thin liquidity, totaling 11.7349 trillion yen.
It was Japan’s first yen-market intervention since July 2024.
Japan did not use the U.S. COVID-19 era Federal Reserve backstop, as no repo agreements appeared through August 5.

History

Historical Context

Japan’s Ministry of Finance intervened in March 1998, buying ¥13 trillion of dollars while the Bank of Japan cut rates to 0.5% and the U.S. Treasury pledged $30 billion, a response rooted in earlier 1970s yen-support policies and the 1985 Plaza Accord that forced rapid appreciation. Decades of low-rate carry-trade and recent 2022-24 interventions have left the yen near ¥158 per dollar.

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Yen Falls

The yen fell to ¥158.5 per dollar on Friday, erasing half the gains from the July 31 U.S.-Japan intervention.
The July 31 operation bought yen worth $34 billion after $53 billion was spent, with Treasury Secretary Scott Bessent and top currency official Atsushi Mimura saying authorities ready to intervene.
Index swaps show a 60 % chance of a Bank of Japan hike by September, while a weak U.S. payroll report pushed the yen to ¥156.68.

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