Yen nears weakest in 40 years as BOJ hike fails to stem rout - Finance news and analysis from Global Banking & Finance Review
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Yen nears weakest in 40 years as BOJ hike fails to stem rout

Published by Global Banking & Finance Review

Posted on June 19, 2026

4 min read

· Last updated: June 19, 2026

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Yen Holds Near 40-Year Low Despite BOJ Rate Hike and Japan Interventions

By Gregor Stuart Hunter

Market Reactions and Currency Movements

Yen Performance Amid Global Events

SINGAPORE, June 19 (Reuters) - The yen was pinned near four-decade lows on Friday, with markets on heightened intervention watch as neither a U.S.-Iran peace deal nor a rate hike in Japan managed to arrest its prolonged slide.

The yen was 0.1% stronger against the U.S. dollar at 161.205 yen, steadying after dropping to a two-year low on Thursday, though holidays in the U.S. and much of Asia kept liquidity thin.

Impact of U.S.-Iran Peace Deal

Most other currencies were little changed as shipping in the Strait of Hormuz returned to normal after the signing of the U.S.-Iran peace deal earlier this week, though question marks remain over whether the truce will hold.

Japanese Policy Responses

Interventions and Rate Hikes

But the Japanese currency has found little relief even after the Ministry of Finance's dollar-selling intervention earlier this year and the Bank of Japan hiked interest rates to a 31-year high last week. Concerns around the spending plans of Japanese Prime Minister Sanae Takaichi have undermined investor confidence and prompted speculation that more intervention could follow.

Expert Analysis on Intervention

"Our view is that Japan’s Ministry of Finance will likely defend the 161.95 level the first couple of times it’s tested, deploying similar firepower to what we saw in April and May — around ¥11.7 trillion," said Tony Sycamore, market analyst at IG in Sydney.

"That would mean they would have used roughly 11–12% of their total reserves in a relatively short period, with little noticeable impact," he added. "At that stage, they would need to become far more selective with future interventions to preserve flexibility and credibility, keeping plenty of ammunition in reserve."

Inflation and Economic Outlook

Japan's annual core inflation stayed below the central bank's 2% target for a fourth straight month in May, data showed on Friday, as fuel subsidies offset rising raw material costs from the Middle East conflict. 

Future Inflation Expectations

"While the government’s fuel price caps have so far kept a lid on consumer prices, we expect the pass-through of higher energy costs to utilities charges and other goods and services to lift inflation to around 3.5% by early-2027," analysts from Capital Economics wrote in a research note.

BOJ Policy Meeting Insights

Minutes from the central bank's meeting in April released on Friday showed some board members called for raising interest rates more swiftly if the Middle East conflict is prolonged, to avoid underlying inflation from overshooting. Bank of Japan Deputy Governor Ryozo Himino also said on Friday the central bank will continue to raise interest rates with an eye on the risk that underlying inflation overshoots its 2% target.

Other Major Currencies and Market Trends

Most other currencies were little changed in Asian trading. The U.S. dollar index, which measures the greenback's strength against a basket of six currencies, held at 100.81 after climbing 0.5% to hit a one-year high on Thursday.

British Pound and Political Developments

The British pound was flat at $1.3205 after the Bank of England kept interest rates on hold at 3.75% on Thursday, judging it would be premature to raise rates now given uncertainty about the strength of increased inflation pressures. 

UK By-Election and Political Implications

Traders are awaiting the results of a by-election contested by Greater Manchester mayor Andy Burnham, who, if he wins, would likely challenge Prime Minister Keir Starmer for the leadership of the ruling Labour Party. 

Euro, Australian Dollar, and Cryptocurrencies

The euro was flat at $1.1459.

The Australian dollar slipped 0.1% to $0.7011, while its kiwi counterpart held steady, fetching $0.5756.

Bitcoin was down 0.2% at $62,868.18, while ether was unchanged at $1,708.98.

(Reporting by Gregor Stuart HunterEditing by Shri Navaratnam)

Key Takeaways

  • The Bank of Japan raised its short‑term policy rate to 1.0% on June 16, its highest since 1995, in a widely expected move to counter underlying inflation pressure. (investing.com)
  • Despite the rate hike, the yen remained weak—trading around ¥161 to the dollar—prompting renewed speculation over potential yen-supportive intervention by Japan’s Ministry of Finance. (asiatimes.com)
  • Underlying inflation concerns in Japan persist, especially from energy costs and wage gains, even as headline core inflation remains below the 2% target due to government subsidies. (zacks.com)

References

Frequently Asked Questions

Why is the Japanese yen near its weakest level in 40 years?
Despite recent interventions and a Bank of Japan rate hike, concerns over government spending and persistent inflation have pressured the yen.
What actions has the Bank of Japan taken to support the yen?
The Bank of Japan raised interest rates to a 31-year high and the Ministry of Finance conducted dollar-selling interventions.
Did the Bank of Japan's recent interest rate hike stop the yen's slide?
No, the yen remained weak even after the BOJ raised interest rates, as investor confidence was still low.
How are inflation trends impacting Japan's currency policy?
Japan's core inflation remains below target due to fuel subsidies, but higher energy costs may lift inflation to about 3.5% by 2027, potentially influencing further policy action.
What are market expectations for further yen intervention?
Analysts expect the Ministry of Finance to defend key levels but may have to reduce intervention frequency to preserve reserves.

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