Every year, Wall Street waits for Jamie Dimon‘s letter to JPMorgan shareholders. This year, it arrived with a warning that goes well beyond banking.
In his annual shareholder letter published April 6, Dimon warned that the war in Iran risks triggering another round of persistent inflation and higher interest rates that could tip the U.S. economy into recession and reshape the global economic order. He painted a mostly positive picture of where the economy stands today, but said the conflict introduces a wildcard that markets may not have fully priced in.
“The skunk at the party,” Dimon wrote, “and it could happen in 2026, would be inflation slowly going up, as opposed to slowly going down.”
The inflation risk Dimon is flagging
The core of Dimon’s concern is familiar from recent history. The Iran war, he argued, creates the potential for significant and persistent oil and commodity price shocks, combined with a reshaping of global supply chains, which together “may lead to stickier inflation and ultimately higher interest rates than markets currently expect.”
Related: Iran War could force Fed rate hikes, not cuts
It is a dynamic the U.S. economy lived through between 2021 and 2023, when pandemic-era supply chain disruptions drove a surge in prices that the Federal Reserve was forced to combat with rapid rate hikes. Dimon is warning the war could trigger a similar sequence.
“Given our complex global supply chains, countries are experiencing disruptions in shipbuilding, food and farming, among others,” he wrote.
Dimon also acknowledged that sustained inflation could force the Federal Reserve to keep rates higher for longer, posing broader risks to the economy and financial system.
The resilience Dimon sees and the tipping point he fears
Dimon was careful not to sound alarmist. He noted that the U.S. economy enters this period in relatively strong shape, with consumers still spending and businesses still healthy. He credited the Trump administration’s tax cuts and deregulatory agenda, together with the One Big Beautiful Bill, with adding an estimated $300 billion to the economy this year and boosting GDP by around 1%, according to CNN. He also pointed to AI spending as a driver of U.S. productivity.
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“Despite the unsettling landscape, the U.S. economy continues to be resilient, with consumers still earning and spending (though with some recent weakening) and businesses still healthy,” he wrote.
But resilience is not immunity. Dimon warned that a stronger starting position does not eliminate the risk of a sudden turn.
“While the economy may be less fragile than in the past, this alone does not mean there is no ‘tipping point.’ It just may mean it could take more straws on the camel’s back to get there,” he added.
Markets, sentiment and the feedback loop
Dimon also flagged the risk that markets themselves could amplify a downturn once one begins. High government debt levels are manageable as long as GDP stays robust and rates stay relatively low, but that equation can unravel quickly if conditions shift, he warned.
“Human nature has not changed. Sentiment and confidence can change rapidly and drive the markets,” Dimon wrote. “Falling asset prices at one point can change sentiment rapidly and cause a flight to cash.”
Dimon was equally direct on the geopolitical stakes of the conflict itself. “We should not turn a blind eye to the role the current regime in Iran has played in fostering terrorism and killing thousands of people, including Americans and many of its own citizens, over many years,” he wrote,
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The broader list of risks
The Iran war dominated the letter but was not the only concern Dimon raised. He also flagged souring U.S.-China relations, ongoing trade policy uncertainty, and what he described as problems building in private credit markets. He added that the private credit sector “probably” does not present a systemic risk, but said it warranted close attention.
Key risks Dimon flagged in his 2026 shareholder letter:
- Iran war oil and commodity price shocks leading to stickier inflation and higher rates
- Global supply chain disruptions in shipbuilding, food and farming,
- High government debt loads that become harder to manage if GDP softens
- Market sentiment feedback loops that can amplify downturns
- Souring U.S.-China relations and trade policy uncertainty,
- Growing concerns in private credit markets, according to
The letter was published the day after President Trump threatened to target Iran’s power plants if Tehran did not reopen the Strait of Hormuzl. Dimon’s view on how it all resolves carries weight on Wall Street. “The outcome of current geopolitical events may very well be the defining factor in how the future global economic order unfolds,” he wrote. “Then again, it may not.”
Related: Iran partially reopens Strait of Hormuz. What’s next for oil price?
