• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
EnergyIran

Markets cheer as Trump threatens to abandon Iran war, but Jamie Dimon sides with allies: ‘Win this thing and clean up the straits’

By
Eva Roytburg
Eva Roytburg
Fellow, News
Down Arrow Button Icon
By
Eva Roytburg
Eva Roytburg
Fellow, News
Down Arrow Button Icon
March 31, 2026, 10:53 AM ET
U.S. President Donald Trump reacts during a Cabinet meeting in the Cabinet Room of the White House on March 26, 2026 in Washington, DC
President Donald Trump during a cabinet meeting at the White House, March 26, 2026.Chip Somodevilla—Getty Images

The stock market ripped Monday morning after the White House signaled it may no longer be America’s job to reopen the Strait of Hormuz.

Recommended Video

The S&P 500 rose more than 1.5%, while the Nasdaq climbed nearly 2%.

Overnight, a Wall Street Journal report indicated that President Trump would be ready to walk away from the war in Iran; by the morning, he was telling allies that they should “build up some delayed courage, go to the Strait, and just TAKE IT.” 

“You’ll have to start learning how to fight for yourself, the U.S.A. won’t be there to help you anymore, just like you weren’t there for us,” Trump wrote on his social media platform, Truth Social.

Meanwhile, the average price of gas in the U.S. crossed $4 a gallon Tuesday, up more than a dollar from $2.98 on Feb. 27, the day before the war began. It’s the first time gas prices have crossed the $4 threshold since 2022, when Russia’s invasion of Ukraine triggered an energy crisis. At the same time, Trump’s approval rating is tanking; according to Nate Silver, it’s now at –16.7, a record low for his second term.

Throughout the war, the White House has catered its messaging to the stock market, which is desperately trying to hold on to its yearslong rally, even as consumer costs climb. And while Americans face pain at the pump, Southeast Asia is confronting fuel shortages that are forcing people to work from home or even wear short sleeves to conserve air conditioning.

As Trump continues to optimize for the American market, he reinforces a type of “America-first” trade, where those who are invested win while other nations absorb the cost. Recently, Gulf allies of the U.S. have implored Trump to continue the war until the Iranian regime is fully crippled—unable to fund its proxies or continue to hold the strait as a point of leverage. Jamie Dimon echoed the view during an interview with Brian Kilmeade on Fox News Tuesday morning, saying: “It’s much more important that this be successfully completed than what the market does.

“We should all hope that these bad people—that we win this thing and clean up the straits and that Iran is no longer a threat to everybody,” Dimon said.

However, the White House, on multiple fronts, has tried to tamp down expectations for the Strait of Hormuz. White House press secretary Karoline Leavitt confirmed Monday that reopening the Strait of Hormuz is not one of the “core objectives” Trump has set for the military campaign, and Defense Secretary Pete Hegseth reinforced the message Tuesday morning at a very friendly presser at the Pentagon, listing the destruction of Iran’s missiles, drones, and navy as the mission’s goal, but not Hormuz.

“This Strait of Hormuz issue is not just a United States of America problem,” Hegseth said.

Leavitt added Tuesday that once the war is over, gas prices “will plummet back to the multiyear lows American drivers enjoyed before these short-term disruptions.”

The stock market appeared to read it as de-escalation: If the U.S. pulls out, it removes the worst-case scenario of a prolonged ground campaign that sends oil even higher. But walking away doesn’t solve the underlying problem; the price of oil also climbed Tuesday as West Texas Intermediate now sits at $103 at the time of writing, nearly double where it started this year. BlackRock CEO Larry Fink warned this week that oil could hit $150 and cause a global recession if Iran remains a threat to Hormuz after the war ends.

The damage to the real economy is already compounding. Ultimately, even as the U.S. leverages its strategic reserves, oil is a global commodity, and as commodities researcher Rory Johnston likes to say: “A barrel of oil lost anywhere is a barrel of oil lost everywhere.” Oxford Economics cut its global industrial growth forecast to 2.5% this year, warning that energy-intensive sectors like transport, utilities, and petrochemicals face severe cost spikes and production declines. Its senior economist Nico Palesch warned in a note Tuesday morning of the potential for “supply-chain disruptions on par with what was seen in the COVID-19 pandemic” if the strait’s closure isn’t resolved. 

The United Nations Development Program also warned Tuesday that the war could push up to 4 million people in the Middle East into poverty, with the region facing GDP losses of $120 billion to $194 billion. More than 3,000 people have been killed across the Middle East since the war began: 1,900 in Iran, 1,200 in Lebanon, 19 in Israel, and 13 U.S. service members.

Meanwhile, on the other side of its mouth, the administration keeps ramping up its threats on Iran. Trump shared a video on Truth Social Monday night showing a massive ammunition depot in Isfahan being hit by American bombers, an attack Hegseth confirmed involved 2,000-pound bunker busters to destroy missiles. The chairman of the Joint Chiefs of Staff added that the U.S. has begun flying B-52 bombers over Iran, aircraft capable of carrying nuclear weapons.

On the ground, thousands of special operations forces—Navy SEALs, Army Rangers, Marines—are in the region. Hegseth said strikes will intensify if no deal is reached with Iran soon, while Trump himself has threatened to “obliterate” Iran’s power plants, oil wells, and Kharg Island—and “possibly all desalination plants,” which millions of people across the Middle East depend on for drinking water. Human Rights Watch has said bombing them would constitute a war crime. Asked about it, the chairman of the Joint Chiefs said only that the military would run any such target through its “normal procedures.”

Meanwhile, Iran has little incentive to negotiate. Daily ship traffic through the strait has fallen roughly 90% to 95% since the war began. Iran’s parliament has approved a plan to formalize tolls on vessels passing through, codifying its control over the chokepoint, which it has already reaped the benefits of: Iran is earning far more per barrel than before the war. With those sorts of incentives to keep it closed, Tehran might not be in the negotiating mood.

No other country has stepped up to take charge of opening up the strait. Trump railed against allies on Truth Social, particularly France, which he said has been “VERY UNHELPFUL” as it blocked Israeli planes carrying fuel from flying over its airspace. “THE USA WILL REMEMBER!!”

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Author
By Eva RoytburgFellow, News
Instagram iconLinkedIn icon

Eva covers macroeconomics, market-moving news, and the forces shaping the global economy.

See full bioRight Arrow Button Icon

Latest in Energy

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Energy

U.S. President Donald Trump reacts during a Cabinet meeting in the Cabinet Room of the White House on March 26, 2026 in Washington, DC
EnergyIran
Markets cheer as Trump threatens to abandon Iran war, but Jamie Dimon sides with allies: ‘Win this thing and clean up the straits’
By Eva RoytburgMarch 31, 2026
2 hours ago
rice's whale
Environmentendangered species
Trump’s plan to drill for oil in the Gulf of Mexico could be foiled by just 50 survivors of a rare whale species
By Tammy Webber and The Associated PressMarch 31, 2026
4 hours ago
burgum
Environmentendangered species
Washington’s ‘God Squad’ assembles to debate the fate of a rare endangered whale and drilling in the Gulf of Mexico
By Matthew Brown and The Associated PressMarch 31, 2026
4 hours ago
trump
PoliticsIran
Iran attacks Gulf, Israeli infrastructure and Trump considers a big strike to wipe out drinking water supplies
By Jon Gambrell, Josh Boak, Mike Corder and The Associated PressMarch 31, 2026
4 hours ago
trump
EnergyWhite House
Why Trump just can’t talk the oil price down—and why markets and Americans are starting to tune him out
By Josh Boak, Fatima Hussein and The Associated PressMarch 31, 2026
4 hours ago
trump
PoliticsIran
America’s Arab allies privately urge America to finish the job in Iran, sources say
By Aamer Madhani, Samy Magdy, Matthew Lee, Sam Mednick and The Associated PressMarch 31, 2026
4 hours ago

Most Popular

Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
Economy
Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
By Fortune EditorsMarch 30, 2026
20 hours ago
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
AI
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
By Fortune EditorsMarch 30, 2026
24 hours ago
A CEO trying to reindustrialize America says blue-collar pay is headed for 'massive hyperinflation' and kids should skip college to become welders
Success
A CEO trying to reindustrialize America says blue-collar pay is headed for 'massive hyperinflation' and kids should skip college to become welders
By Fortune EditorsMarch 30, 2026
1 day ago
413,793 KitKat bars stolen: 'Whilst we appreciate the criminals’ exceptional taste, the fact remains that cargo theft is an escalating issue'
Europe
413,793 KitKat bars stolen: 'Whilst we appreciate the criminals’ exceptional taste, the fact remains that cargo theft is an escalating issue'
By Fortune EditorsMarch 28, 2026
3 days ago
Current price of gold as of March 30, 2026
Personal Finance
Current price of gold as of March 30, 2026
By Fortune EditorsMarch 30, 2026
1 day ago
The federal government shed 385,000 employees last year. Now the Trump administration is on a blitz to hire Gen Z workers
Politics
The federal government shed 385,000 employees last year. Now the Trump administration is on a blitz to hire Gen Z workers
By Fortune EditorsMarch 31, 2026
10 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.