Dollar hits 10-day low as US, Iran reach peace deal - Finance news and analysis from Global Banking & Finance Review
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Dollar hits 10-day low as US, Iran reach peace deal

Published by Global Banking & Finance Review

Posted on June 15, 2026

3 min read

· Last updated: June 15, 2026

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US Dollar Drops to 10-Day Low as US and Iran Strike Peace Deal, Oil Plunges

Market Reactions to US-Iran Peace Deal and Oil Price Movements

(Corrects to removes duplicate content on oil price move in bullets)

By Jiaxing Li

US Dollar and Major Currencies Performance

HONG KONG, June 15 (Reuters) - The U.S. dollar slid on Monday to a 10-day low against its major peers as news the United States had agreed to a peace deal with Iran sent oil prices tumbling and boosted demand for riskier assets.

U.S. and Iranian officials said on Sunday they have agreed on a framework for a deal to end their war, halt the U.S. blockade of Iran and reopen the Strait of Hormuz. Oil prices slipped, with Brent crude futures down more than 4% to $83.82.

Lingering Caution Amid Political Uncertainty

But caution lingered as President Donald Trump told the New York Times on Sunday if Iran failed to reach a final nuclear accord with the United States, he would restart military attacks on Tehran or make the United States "the guardian of the Middle East" in return for 20% of the region's revenues.

Currency Market Movements

The euro stood at $1.1607, up 0.35% so far in Asia, and Sterling strengthened 0.3% to $1.3448.

The risk-sensitive Australian dollar fetched $0.7075, up 0.50%, while the kiwi was up 0.4% at $0.5854.

The dollar index, which measures the greenback against a basket of currencies including the yen and the euro, fell 0.31% to 99.492, the weakest level since June 5.

Expert Commentary

"I think we'll see the dollar fall over the course of the next few sessions. We'll probably see some of the risk currencies like Aussie and yen appreciate a little bit. But I don't think we're going to see any huge moves," said Nick Twidale, chief market strategist at ATFX Global in Sydney.

"There's going to be a lot of wait and see, on how quickly the Strait really reopens and how long it's going to take for oil flow to really get back to normal. It's certainly going to be months rather than weeks."

Central Bank Actions and Policy Outlook

Japanese Yen and Bank of Japan Policy

The Japanese yen weakened to as much as 160.150, continuing to hover around the 160 level widely seen as a line in the sand for potential official intervention.

The Bank of Japan is set to raise interest rates to a 31-year high at the two-day meeting concluding on June 16, and signal its readiness to keep pushing up borrowing costs, undeterred by the temporary absence of its governor as it focuses on countering inflation risks from the Middle East war.

Global Central Bank Trends

The decision would align the BOJ with other central banks shifting towards tighter policy, including the European Central Bank, which delivered a much-anticipated hike on Thursday.

(Reporting by Jiaxing Li; Editing by Sam Holmes)

Key Takeaways

  • US and Iran have agreed on a framework deal to extend ceasefire, reopen the Strait of Hormuz, and lift the US naval blockade, paving the way for energy flows to resume and a formal signing scheduled Friday. (axios.com)
  • Brent crude fell around 4% to $83.82 a barrel, dragging the dollar lower as investors flocked to risk‑on assets, weakening the greenback to its weakest level since June 5. (investing.com)
  • The Bank of Japan is expected to raise its policy rate to around 1.0% at the June 16 meeting, a level not seen since 1995, with markets pricing in further hikes later in 2026. (investing.com)

References

Frequently Asked Questions

Why did the US dollar fall to a 10-day low?
The US dollar fell as news broke of a peace deal between the US and Iran, which boosted demand for riskier assets and reduced demand for the dollar.
How did oil prices react to the US-Iran peace agreement?
Oil prices tumbled, with Brent crude falling over 4% as reopening the Strait of Hormuz eased supply concerns.
What currencies gained against the US dollar?
The euro, sterling, Australian dollar, and New Zealand dollar all strengthened against the US dollar.
What is the significance of the Bank of Japan's upcoming interest rate decision?
The Bank of Japan is expected to raise interest rates to a 31-year high to counter inflation, aligning its policy with other major central banks.
What could impact the dollar's movement in coming sessions?
Uncertainty about how quickly the Strait of Hormuz will reopen and the normalization of oil flow may influence the dollar's movement.

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