The man who runs the biggest US bank thinks the bond market is still underpricing risk, and he wasn't subtle about it. In an interview on Bloomberg Television, JPMorgan Chase CEO Jamie Dimon said US interest rates "could be much higher than they are today."
That's the kind of line Wall Street ignores from most CEOs. Coming from Dimon, who has been warning about higher rates for two years, it lands differently.
Dimon's case lines up with what's been hitting long-dated bonds for weeks, with yields on the longest US Treasuries climbing to multi-year highs as investors demand a bigger payout to lend that far out. A few forces are stacked on top of each other to push that math.
Higher oil prices could force central banks to keep rates up to fight imported inflation. Government spending is running heavy in the US, the UK, and Japan all at once, which means more bonds for the world to buy.
The AI build-out in the US is also keeping growth firmer than expected, which makes deep rate cuts harder to justify. Dimon framed all of that as a shift in the world's savings picture, with his phrase being, "We may have gone from a saving glut to not enough savings."
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Bond prices and yields move in opposite directions, which means anyone holding longer-term US Treasuries has been on the wrong side of the math for weeks. The longer the bond's maturity, the harder it gets hit when yields rise.
That's part of why bonds haven't acted like the safe haven investors expect in recent months.
Dimon also warned that credit spreads (the extra interest companies pay over the US government to borrow) could widen further, hitting riskier corporate bonds harder than Treasuries.
If credit spreads do widen, stocks tied to borrowing-heavy sectors usually feel it next, since higher borrowing costs cut into earnings.
The 30-year US Treasury yield is the cleanest read on this, and if it keeps grinding higher, Dimon's call ages well. If it stalls or rolls over, the bond market is saying the worry is overdone.
The other tell is corporate borrowing costs, where a widening gap between corporate and government yields would mean the market is starting to price in the same risks Dimon is warning about.
For now, the loudest voice on Wall Street has doubled down, and the bond market is leaning his way.
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