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Oil rises, stocks mixed as new US strikes dampen peace deal optimism

Published by Global Banking & Finance Review

Posted on May 26, 2026

3 min read

· Last updated: May 26, 2026

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Oil Prices Rise, Stocks Mixed Amid US Strikes and US-Iran Peace Talks

Market Reactions to Middle East Tensions and Peace Negotiations

By Rae Wee

Oil Prices Respond to Geopolitical Developments

SINGAPORE, May 26 (Reuters) - Oil prices rose on Tuesday and stocks were mixed as investor optimism over an imminent U.S.-Iran peace deal was tempered by new U.S. strikes in the Middle East.

US-Iran Peace Talks in Focus

Iran's top negotiator and its foreign minister were in Doha for talks with Qatar's prime minister on a potential deal with the U.S. to end the war, an official briefed on the visit said, after Washington and Tehran played down hopes for an imminent breakthrough.

The Nikkei newspaper separately reported that both parties were discussing a plan to open the Strait of Hormuz about 30 days after reaching a deal to end hostilities.

US Strikes Continue Despite Negotiations

But even as the talks proceeded, U.S. forces conducted strikes on Monday in southern Iran against targets including boats attempting to lay mines and missile launch sites, in what they described as defensive actions.

Impact on Oil Futures

The developments sent Brent futures rising more than 1% in early Asian trade to $97.32 a barrel. U.S. West Texas Intermediate crude was up slightly from Monday's last traded price but down 5.5% from Friday's close. There was no settlement on Monday due to the U.S. Memorial Day holiday.

"I'm a bit sceptical... We keep being told there's a deal that's near, but what does the deal look like? That's what's really important. When's the Strait of Hormuz going to open... There's a lot we don't know," said Joseph Capurso, a strategist at Commonwealth Bank of Australia.

Stock Markets Show Mixed Performance

Stock markets were mixed, with MSCI's broadest index of Asia-Pacific shares outside Japan advancing 0.8%, while Japan's Nikkei shed 0.2%.

Nasdaq futures trimmed earlier gains to trade 0.9% higher, while S&P 500 futures rose 0.68%.

EUROSTOXX 50 futures eased 0.36%, while FTSE futures added 0.4% and DAX futures lost 0.43%.

"The market wants to believe that it's all going to end soon, because the war not ending is quite bad for the world economy. The world economy's had these buffers of running down inventories, but you can't keep running down inventories," said Capurso.

Currency and Bond Markets React

Dollar Steadies Amid Uncertainty

DOLLAR STEADIES

In currencies, the dollar steadied on Tuesday on renewed safe-haven demand, though it remained some distance away from a six-week peak hit last week.

The euro fell 0.06% to $1.1636, while sterling eased to $1.3498.

Against the yen, the dollar was flat at 158.95.

Bonds Hold Steady After Recent Volatility

Bonds were largely steady after a rout last week on worries that higher energy prices for longer would stoke a resurgence in inflation and prompt rate hikes across both developed and emerging markets.

The yield on the two-year U.S. Treasury note was last little changed at 4.0612%, while the 10-year yield fell to 4.5024%.

"We are likely to see periodic yield retracements on occasions when geopolitical risks subside, but inflation and fiscal risks are likely to be more sustained," said Eric Robertsen, Standard Chartered's head of global research and chief strategist.

"Commodity supply dislocations will take months to resolve, and fiscal support measures are likely to drive a sustained deterioration in sovereign balance sheets - which will also require increased borrowing in an environment of higher funding costs."

Commodities Update

Elsewhere, spot gold was down 0.5% at $4,545.90 an ounce. [GOL/]

(Reporting by Rae Wee; Editing by Muralikumar Anantharaman)

Key Takeaways

  • U.S. conducted self‑defense strikes on missile sites and mine‑laying boats in southern Iran, undercutting hopes for an imminent peace breakthrough (apnews.com).
  • Reports suggest the U.S. and Iran may reopen the Strait of Hormuz about 30 days after a ceasefire deal, though markets remain cautious (marketscreener.com).
  • Oil rose—Brent futures climbed above $97/barrel—but volatility persists amid geopolitical uncertainty and inventory pressures (axios.com).

References

Frequently Asked Questions

Why did oil prices increase on Tuesday?
Oil prices rose as new US strikes in the Middle East reduced optimism for a US-Iran peace deal, raising concerns about supply disruptions.
What impact did US strikes have on stock markets?
Stocks were mixed globally, with some indices advancing and others falling, as investors weighed the potential for prolonged conflict versus a possible peace deal.
How did global currencies react to the US-Iran situation?
The US dollar steadied on renewed safe-haven demand, while the euro and sterling eased slightly amid ongoing geopolitical uncertainty.
What was discussed in the US-Iran talks?
Officials discussed a plan to open the Strait of Hormuz about 30 days after reaching a peace deal, but significant uncertainties remain.
How did bond and commodity markets respond?
Bond yields were largely steady, gold prices fell, and concerns persisted over inflation and fiscal risks from ongoing geopolitical tensions.

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