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Dollar firms as US-Iran tensions lift oil, hawkish Fed bets build - Finance news and analysis from Global Banking & Finance Review
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Dollar firms as US-Iran tensions lift oil, hawkish Fed bets build

Published by Global Banking & Finance Review

Posted on September 28, 2026

3 min read

· Last updated: September 28, 2026

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Dollar Gains on US-Iran Tensions, Rising Oil and Hawkish Fed Prospects

Market Overview and Key Drivers

Dollar Strength Amid Geopolitical Tensions

HONG KONG, Sept 28 (Reuters) - The dollar inched higher to hold near a two-month high on Monday, as the US-Iran standoff continued to push up oil prices while investors looked ahead to a data-packed week for more clues on inflation and central banks' moves.

Performance Against Major Currencies

The euro and sterling were both 0.1% weaker against the dollar, last at $1.1379 and $1.3232, respectively, hovering near multi-month lows against the greenback.

The dollar index, which measures the US currency against a basket of peers, was a touch higher at 101.15 and on track for a 1.7% gain in September, its best month since June.

Oil Prices and Energy Market Impact

Oil prices climbed more than 1% on Monday with Brent crude futures last above $106 a barrel, after US President Donald Trump rejected a peace deal with Iran to resolve their conflict and reopen the Strait of Hormuz.

Inflation Concerns and Fed Outlook

Energy supply risks and robust fundamentals in the US have heightened inflation concerns and prompted traders to price in a more hawkish Federal Reserve, while elevated long-end Treasury yields also supported the dollar.

Expert Commentary

"The greenback could overshoot in the near term if energy market tensions persist and inflation risks continue to build," said Sim Moh Siong, FX strategist at OCBC.

The bank's base case remains for a moderate USD rally into year-end, he added.

Upcoming Economic Data and Central Bank Moves

The market's focus is set to turn to US data releases as the week unfolds, with the PCE Index on Wednesday and non-farm payrolls on Friday both expected to be consistent with further policy tightening.

Currently, markets are seeing a 65% chance of a rate hike from the Fed when the central bank meets next at the end of October, according to CME Group's FedWatch tool.

Global Economic Indicators

Other data for the week include China PMIs on Wednesday ahead of the week-long National Day holidays and Japan and euro zone CPIs on Friday.

Currency Movements in Asia-Pacific

The yen was last down 0.3% at 157.7 per dollar. It gained on Friday after Japan's Finance Minister Satsuki Katayama and US Treasury Secretary Scott Bessent held a call on Friday and reaffirmed that yen undervaluation is a matter of concern and that the two nations intend to strengthen cooperation.

The Australian dollar fetched $0.7017, down 0.07%, and the kiwi traded flat at $0.5661.

Reserve Bank of Australia Policy Expectations

The Reserve Bank of Australia is expected to raise interest rates by 25 basis points to a near 15-year high of 4.60% on Tuesday, expected to be the final rate increase in the tightening cycle.

Other Notable Currency Moves

Elsewhere, offshore yuan weakened to 6.7235 per dollar after Trump and Chinese President Xi Jinping's three-day summit did not yield any big public breakthroughs on a host of contentious issues.

(Reporting by Jiaxing Li; Editing by Edwina Gibbs)

Key Takeaways

  • The dollar is holding near recent highs, with the dollar index at about 101.15 and buoyed by rising oil and hawkish sentiment (marketscreener.com)
  • Brent crude surged above $106 a barrel amid Middle East conflict risks, raising inflation concerns (theweek.com)
  • Markets now price a majority chance of a Fed rate hike in October—probabilities range from ~55% to ~67%, signaling growing expectation of further tightening (macroodds.com)

References

Frequently Asked Questions

Why is the US dollar strengthening against other currencies?
The US dollar is strengthening due to higher oil prices from US-Iran tensions, rising inflation worries, and expectations of a more hawkish Federal Reserve.
How are US-Iran tensions affecting oil prices?
US-Iran tensions have pushed Brent crude futures above $106 a barrel, increasing concerns about energy supply and driving oil prices higher.
What is the market expecting from the Federal Reserve?
Markets see a 65% chance of a rate hike at the next Federal Reserve meeting as inflation risks and robust US fundamentals persist.
Which major upcoming data releases are markets watching?
Markets are focused on US PCE Index, non-farm payrolls, China PMIs, and Japan and euro zone CPIs for signals on central bank policy.

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