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Dollar heads for weekly loss on reports of US-Iran ceasefire deal - Finance news and analysis from Global Banking & Finance Review
Finance

Dollar heads for weekly loss on reports of US-Iran ceasefire deal

Published by Global Banking & Finance Review

Posted on May 29, 2026

3 min read

· Last updated: May 31, 2026

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Dollar set for weekly loss amid US-Iran ceasefire deal

Dollar weakens as US-Iran ceasefire impacts global currency markets

(In May 29 story, corrects to "a weekly loss" instead of "second straight weekly loss," paragraph 1)

By Chibuike Oguh

Ceasefire agreement and its impact on the dollar

NEW YORK, May 29 (Reuters) - The dollar slipped against major currencies on Friday and was headed for a weekly loss after reports that the United States and Iran had reached an agreement to extend their ceasefire and ease restrictions on shipping through the Strait of Hormuz.

U.S. President Donald Trump said he would make a final decision on Friday on a deal to prolong the truce with Iran. The proposed agreement would extend the ceasefire by 60 days and allow traffic to resume through the strategic waterway while negotiators work through contentious issues, including Iran’s nuclear programme, four sources told Reuters.

Market reaction and investor sentiment

The greenback had initially rallied at the onset of the conflict, buoyed by safe-haven demand and the U.S. economy’s relatively limited exposure to energy-driven inflation. However, it has since surrendered some of those gains as uncertainty surrounding the conflict’s trajectory has weighed on investor sentiment.

The euro was up 0.12% at $1.16620 and was on track for a weekly gain. The pound sterling was up 0.18% against the dollar at $1.3466, marking the second straight week of gains.

Analyst insights on central bank policy

"We don't have answers about a lot of things and it's creating a divergence or lack of consensus or complete narrative especially for central banks," said Juan Perez, director of trading at Monex USA in Washington. "That's why you're seeing that reflected in the lack of movement in the U.S. dollar overall."

The dollar index, which measures the greenback against a basket of currencies, was flat at 98.92, on track to notch a weekly loss.

US inflation and Federal Reserve outlook

Data on Thursday showed U.S. inflation rising at its fastest pace in three years in April, driven by higher energy prices due to the Iran war and cementing economists' views that the Federal Reserve will hold interest rates unchanged well into next year. 

"Equities are ignoring any issues about economic disruption and you're getting pretty much the same type of stasis in the currencies because if you look at the potential for rate increases, according to the CME and futures, it's all on the side of rate increases," said Joseph Trevisani, senior analyst at FXStreet.

"There's nothing in the horizon but potential rate increases. Yet you're not seeing higher dollar rates."

Yen intervention and Asia-Pacific currencies

Japanese yen intervention

YEN INTERVENTION WATCH

The Japanese yen traded at 159.27 per dollar, remaining near the traditionally significant 160 level that has historically prompted interventions by Japanese authorities.

Japan's Ministry of Finance confirmed on Friday that the government spent 11.7 trillion yen ($73.5 billion) intervening in currency markets over the past month to support the yen, confirming what traders had widely suspected.

Australian and New Zealand dollar performance

The Australian dollar was up 0.31% at $0.71840. The kiwi rose nearly 0.85% to $0.5985 after hitting its strongest level in more than three months, extending a recent rally after the Reserve Bank of New Zealand suggested rate hikes were likely.

(Reporting by Chibuike Oguh in New York; Additional reporting by Samuel Indyk and Jiaxing Li; Editing by David Holmes and Daniel Wallis)

Key Takeaways

  • A U.S.–Iran memorandum of understanding would extend their ceasefire by 60 days and reopen the Strait of Hormuz pending Trump’s approval (axios.com)
  • Oil prices slipped amid easing geopolitical tensions, dampening demand for the safe-haven dollar (internazionale.it)
  • Dollar index is set to end the week roughly 0.3% lower, snapping a two-week gain, as investors price in reduced Middle East risk (internazionale.it)

References

Frequently Asked Questions

Why is the US dollar weakening this week?
The US dollar is weakening due to reports of a US-Iran ceasefire agreement, reducing demand for safe-haven assets.
How have oil prices reacted to the US-Iran ceasefire news?
Oil prices have fallen following the reports, as shipping restrictions in the Strait of Hormuz are expected to be lifted.
Which major currencies have strengthened against the US dollar?
The euro, Japanese yen, and New Zealand dollar have all strengthened against the US dollar this week.
What are investors watching for after the ceasefire agreement?
Investors remain cautious, watching for a lasting resolution between the US and Iran and mixed signals from both governments.
How does US inflation data influence expectations for Federal Reserve policy?
Faster US inflation, driven by energy prices, supports expectations that the Federal Reserve will keep interest rates unchanged.

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