Dollar steadies from weakness as Trump calls off planned attack on Iran - Finance news and analysis from Global Banking & Finance Review
Finance

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

Published by Global Banking & Finance Review

Posted on May 19, 2026

3 min read

· Last updated: May 19, 2026

Add as preferred source on Google

Inflation fears and Iran uncertainty lift the dollar

By Karen Brettell

Dollar Strengthens Amid Inflation Concerns and Geopolitical Tensions

May 19 (Reuters) - The U.S. dollar hit a six-week high against the euro on Tuesday as investors focused on a possible hawkish shift by the Federal Reserve to curb energy-driven inflation, while uncertainty over a potential peace deal in the Middle East also weighed on sentiment.

Geopolitical Factors Impacting the Dollar

President Donald Trump said on Tuesday the U.S. may need to strike Iran again and that he had been an hour away from ordering an attack before postponing it.

Strait of Hormuz and Oil Prices

The dollar surged in March after Iran's effective closure of the Strait of Hormuz pushed oil prices higher, weighing on oil-dependent economies such as Japan and the euro zone while boosting safe-haven demand for the U.S. currency.

Oil prices fell on Tuesday.

Federal Reserve Policy and Inflation Fears

The greenback is now also being supported by higher yields, driven by inflation fears and uncertainty over how new Federal Reserve Chair Kevin Warsh will respond if price pressures continue to accelerate.

Market Expectations for the Fed

“We're now back to fundamentals, which is, what's going on with inflation and what does that mean for bonds and where does that leave the Fed,” said Eric Theoret, a foreign exchange strategist at Scotiabank.

At the same time, traders are pricing in less aggressive monetary tightening in Europe and Britain, which is also boosting the dollar, Theoret said.

Dollar Index and Treasury Yields

The dollar index, which measures the greenback against a basket of currencies, including the yen and the euro, rose 0.34% to 99.30.

A selloff in U.S. Treasuries extended on Tuesday with yields on 30-year bonds reaching the highest since 2007.

Fed funds futures traders are pricing in roughly 50% odds that the U.S. central bank could hike rates by December although many analysts said a rate increase is unlikely unless inflation is seen in core consumer prices and inflation expectations break higher.

A Reuters poll shows that economists have largely pushed long-held calls for reductions into next year on hopes the current inflation flare-up is temporary.

The euro fell 0.41% to $1.1607. Sterling weakened 0.25% to $1.3399.

Yen Near Intervention Zone

The Japanese yen dipped 0.13% against the greenback to 159 per dollar. 

Japanese Economic Growth and Policy Response

Data on Tuesday showed that Japan's economy grew faster than expected in the first quarter, supporting expectations for a Bank of Japan rate increase in June.

Markets are also awaiting details of the government's supplementary budget plan, which could further strain Japan's already deteriorating public finances and weigh on the yen.

Japanese Finance Minister Satsuki Katayama told reporters on Monday that Japan stands ready to act against excessive currency volatility, while ensuring that any intervention to support the yen does not push up U.S. Treasury yields.

Currency Intervention and Market Reaction

Investors have been watching closely for further signs of intervention to support the yen, which remains slightly stronger than it was before Japanese officials last month launched their first foray into the currency market in nearly two years.

(Reporting by Karen Brettell; Additional reporting by Stefano Rebaudo; Editing by Jamie Freed, Sonali Desai, Gus Trompiz and Aurora Ellis)

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.

Tags

Related Articles

More from Finance

Explore more articles in the Finance category