If you're surprised by how well the stock market is doing, so is Jamie Dimon—he says there's a 'little tsunami' heading for the economy

Jamie Dimon, chief executive officer of JPMorgan Chase & Co., during a Bloomberg Television interview on the sidelines of the JPMorgan China Summit in Shanghai, China, on Thursday, May 21, 2026. (Credit: Qilai Shen/Bloomberg - Getty Images)

Markets across the world have had plenty to worry about in the past decade. A global pandemic, a major war between Ukraine and Russia in Europe, steady inflation across major economies, including the U.S., rising tensions between China and the U.S., and, most recently, a conflict in the Middle East.

And yet the S&P 500 is up nearly 80% over the past five years, the Nasdaq up more than 86%. Even with the global oil supply shock in over the past three-plus months, Wall Street has remained bullish—thanks, in large part, to the promise of artificial intelligence.