• Jamie Dimon flagged deflation as his primary worry, citing risks of economic weakness.
  • The JPMorgan CEO’s caution stands in contrast to market focus on sticky inflation.
  • Deflation could pressure bank profits through lower net interest income and rising credit losses.

Dimon’s Deflation Warning

Jamie Dimon, chairman and CEO of JPMorgan Chase & Co., told analysts on Thursday that deflation is the “worst case I worry about,” signaling a grim scenario for the world’s largest bank by market capitalization. Speaking after the bank’s quarterly earnings release, Dimon said that while inflation remains elevated, a sharp economic downturn could trigger falling prices, squeezing corporate profits and consumer spending.

“We’ve had inflation for a while, but the worst case I worry about is deflation,” Dimon said, according to people familiar with the call. “If we get it wrong, it could be very serious.” The remarks come as JPMorgan reported 2025 revenue of around $186 billion and a return on tangible common equity near 20%, indicating high capital efficiency despite a mixed macro backdrop.

Implications for Banks

Deflation would erode banks’ net interest income as loan demand weakens and interest rates fall. Credit losses could rise if borrowers struggle with debt servicing in a declining price environment. JPMorgan has already built substantial reserves, a move Dimon described as “prudent in light of the current uncertainty.” The bank’s leadership transition—CEO Dimon is set to step down in 2026, with Daniel Pinto retiring as COO—adds another layer of complexity.

Some analysts pushed back, arguing that persistent inflation and high deficits make deflation unlikely. But Dimon countered that structural shifts—such as aging demographics and high debt levels—could sustain a low-inflation environment longer than markets expect. “Don’t dismiss it just because we haven’t seen it recently,” he said.

Market Reaction

JPMorgan shares fell 1.2% in afternoon trading, as investors weighed Dimon’s warning against broader optimism. The bank’s results beat expectations, fueled by strong fee income, but Dimon’s deflation comments cast a shadow. Rival bank CEOs have also expressed caution, though none have used language as stark as Dimon’s.

Correction: An earlier version of this story mischaracterized Dimon’s remarks as being made during a public conference; they were made on a private analyst call.