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Oil jumps, stocks wobble as Mideast ceasefire hangs in the balance

The ceasefire in the Iran war, due to run until Tuesday, was in doubt after the US seized an Iranian cargo ship and Tehran's top military command vowed to retaliate.

Tom Westbrook (Reuters)
Singapore
Mon, April 20, 2026 Published on Apr. 20, 2026 Published on 2026-04-20T11:39:27+07:00

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The Russian-flagged oil tanker Anatoly Kolodkin maneuvers on March 31, 2026, in Matanzas Bay, Cuba. The Russian-flagged oil tanker Anatoly Kolodkin maneuvers on March 31, 2026, in Matanzas Bay, Cuba. (Reuters/Norlys Perez)

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il prices jumped and stock futures fell on Monday as rising tension in the Middle East kept shipping in and out of the Gulf to a minimum, though traders held out hope for a resolution and Asia's stock markets breezed toward record highs.

Brent crude futures rose about 5 percent to US$95.16 a barrel. S&P 500 futures fell around 0.6 percent and European futures fell 1.1 percent. But equity benchmarks in Seoul, Taipei and Tokyo shrugged off risks to advance, with Taiwan's shares touching a record high and the other two not far behind.

Iran has re-imposed its de facto closure of the Strait of Hormuz, though Kpler data showed that more than 20 vessels carrying oil products, metals, gas and fertilizer passed through on Saturday, the busiest day for the chokepoint since March 1.

The ceasefire in the Iran war, due to run until Tuesday, was in doubt after the US seized an Iranian cargo ship and Tehran's top military command vowed to retaliate.

"The headlines look bad; it looks like there's disagreement [...] which has led to a little bit of re-escalation," said Damien Boey, portfolio strategist at Wilson Asset Management in Sydney.

"But I think, ultimately, both sides want to be able to do a deal, that's part of the reason why the market's optimistic and not selling off too much."

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Hong Kong's Hang Seng rose 0.8 percent, Japan's Nikkei climbed 1 percent and South Korea's KOSPI rose 1.4 percent.

One of the strongest notes of caution in markets on Monday came from Australia's largest business lender, National Australia Bank, which flagged a $500 million impairment charge as it expects the war to drive up bad debts.

Focus on Hormuz

Iran rejected new peace talks with the US, its state news agency reported on Sunday, hours after US President Donald Trump said he was sending envoys for talks in Pakistan and would launch new strikes on Iran unless it accepts his terms.

"Our base case is still resolution to the war. Trump is still focused on November midterm elections," said Paul Chew, head of research at Singapore's Phillip Securities in a note to clients.

Bonds, which rallied on Friday, retreated and the yield on benchmark 10-year Treasuries rose 2.2 basis points to 4.266 percent.

The dollar, which was sold for the best part of the past two weeks, steadied, buying 158.8 yen and trading at $1.1760 per euro.

Wall Street indexes touched record highs on Friday, supported by expectations of robust first-quarter earnings, the bulk of which come this week.

British inflation data, US retail sales and European purchasing managers' index figures are also due through the week, though much of markets' focus will be on Gulf shipping.

"The critical barometer of geopolitical risk has been distilled into one data point: The number of ships transiting the Strait of Hormuz," said Bob Savage, head of markets macro strategy at BNY.

"Peace talks matter, but the immediate focus is on oil and other supply shortages driving inflation."

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