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Dollar steadies from weakness as Trump calls off planned attack on Iran

Published by Global Banking & Finance Review

Posted on May 19, 2026

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· Last updated: May 19, 2026

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Dollar Holds Firm After Trump Calls Off Iran Strike, Bond Markets Stabilize

By Gregor Stuart Hunter

Market Reactions and Currency Movements

SINGAPORE, May 19 (Reuters) - The dollar found support at the start of Asian trading on Tuesday after U.S. President Donald Trump said he had paused a planned attack against Iran to allow negotiations and bond markets stabilised after a two-day selloff. 

U.S. Dollar Index and Treasury Yields

The U.S. dollar index, which measures the greenback's strength against a basket of six currencies, held steady at 99.026, attracting bids after easing fears of an escalation in the war pushed the gauge 0.3% lower on Monday, snapping a five-day winning streak.

"Sentiment stabilised after reports that the U.S. President had called off a planned strike on Iran following appeals from Persian Gulf leaders," Westpac analysts wrote in a research note.

Bond Market Stabilization

The yield on the U.S. 10-year Treasury bond was down 3 basis points at 4.591%, retreating after hitting its highest level in a year as fears a lasting jump in inflation eased. Brent crude futures slumped 2.4% to $109.43 per barrel.

Safe Haven Demand and Central Bank Outlook

The dollar had gained strength during the past week as a safe haven from an escalation of the war in the Middle East and a selloff gripping global bond markets, as investors repriced the risk that central banks would have to take action to contain inflation with the Strait of Hormuz remaining closed and energy markets disrupted.

Fed Rate Hike Expectations

Fed funds futures are pricing an implied 36.2% probability of a 25-basis-point hike at the U.S. central bank's two-day meeting on December 9, compared to a 0.5% chance a month ago, according to the CME Group's FedWatch tool.

Major Currency Pairs Performance

Dollar/Yen and Japanese Intervention

Against the yen, the U.S. dollar was flat at 158.895 yen after government data showed on Tuesday that Japan's economy grew by an annualised 2.1% in the first quarter, compared with the median market forecast for a 1.7% gain. 

Japanese Finance Minister Satsuki Katayama told reporters on Monday that Japan stands ready to act against excessive foreign exchange volatility at any time, while ensuring that any intervention to support the yen and sell dollars is conducted in a way that avoids pushing up U.S. Treasury yields.

Recent Yen-Buying Intervention

Investors have been on watch for further signs of intervention to support the yen, which is little stronger than it was before Japanese officials last month began their first foray into the market in almost two years.

Tokyo may have spent nearly 10 trillion yen ($63 billion) since launching its latest round of yen-buying intervention on April 30, central bank data indicates. 

Other Major Currencies

The euro was flat at $1.1650, while the British pound was down 0.1% at $1.3427.

The Australian dollar was 0.1% lower at $0.7164, while its kiwi counterpart slid 0.1% to $0.5868.

Against the Chinese yuan, the U.S. dollar held steady at 6.798 yuan in offshore trade.

Cryptocurrency Movements

Bitcoin edged up 0.2% to $77,005.69, while ether was up 0.8% at $2,131.91.

(Reporting by Gregor Stuart Hunter; Editing by Jamie Freed)

Key Takeaways

  • Trump postponed a scheduled attack on Iran—originally set for May 19—at the request of Gulf allies to allow further negotiations, though the US military remains ready to act if no deal is reached (axios.com).
  • The US dollar index stabilized at 99.026, rebounding from a two-day selloff driven by easing escalation fears, as bond yields also retreated (japantimes.co.jp).
  • Brent crude fell over 2% amid the news, while Japan has likely already spent around ¥10 trillion ($63 billion) in recent yen-buying intervention to support its currency (investing.com).

References

Frequently Asked Questions

Why did the dollar steady in Asian trading?
The dollar found support after President Trump paused a planned attack on Iran, easing fears of escalating conflict and stabilizing bond markets.
How did the bond markets react to Trump's decision?
Bond markets stabilized, with yields retreating after a recent selloff, following eased inflation fears from the paused Iran strike.
What was the reaction of major global currencies?
The U.S. dollar held steady; the yen and euro were flat, while the British pound, Australian, and New Zealand dollars edged slightly lower.
How likely is a U.S. Federal Reserve rate hike?
Fed funds futures indicated a 36.2% probability of a 25-basis-point rate hike at the December U.S. central bank meeting.
What action did Japanese authorities take in the currency market?
Japanese officials intervened by buying yen to support its value, spending nearly 10 trillion yen since late April.

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