The more Jamie Dimon worries, the better his bank seems to do. As JPMorgan Chase has grown larger, more profitable and increasingly more crucial to the U.S. economy in recent years, its star CEO has grown more vocal about what could go wrong — all while things keep going right for his bank.

CEO Jamie Dimon is increasingly concerned that the US government's surging debt is going to cause problems for the bond market, prompting some pushback from Treasury Secretary Scott Bessent. Last Friday,