On Tuesday, retail sales fell, inflation stayed calm, and the usual signals pointed toward lower borrowing costs. Instead, the 30-year U.S. Treasury yield touched 5.31%, its highest level since June 2007 — while short-term 2-year yields actually drifted lower over the same month. Short money and long money are moving in opposite directions, and the reason is a concept called crowding out.
Crowding out used to describe one thing: when a government borrows heavily, it can push private borrowers out of the market, because there’s only so much capital investors are willing to lend at any given price. Today the relationship has flipped. The U.S. Treasury has actually pulled back — this year it trimmed its supply of new medium- and long-term bonds by roughly $440 billion compared with last year. But that gap didn’t shrink the total amount of long-term borrowing happening. It got filled by someone else: corporations, especially AI companies raising long-dated debt to fund data centers, added back roughly $474 billion in new long-term bond supply. The pool of investors willing to lock up money for 20 or 30 years — mainly pension funds and insurers — hasn’t grown to match. Two borrowers are now competing for the same limited pool of patient capital, and that competition is what’s pushing yields higher even while everyday inflation data looks tame.
Part of the reason nobody is stepping in to calm this down is that the usual referees have limited room to move. The Treasury Secretary can’t single-handedly lower inflation or shrink the deficit — those levers sit with fiscal policy and the Fed, not the Treasury itself. And the Fed’s new chair has signaled he wants to shrink the central bank’s balance sheet rather than expand it, while also walking away from forward guidance — the practice of hinting at future rate moves — so that markets react to incoming data instead of Fed messaging. That’s a recipe for more day-to-day swings in long-term yields, not fewer.
You can see the demand for long-term AI capital directly: on August 10, Nvidia signed agreements with six major asset managers — Apollo, BlackRock, Blackstone, Brookfield, Goldman Sachs, and KKR — worth more than $500 billion, structured around lending against the resale value of GPUs, the way an airline lease is built around a plane’s remaining flight hours. That’s the kind of borrowing now sitting next to U.S. government debt in the queue for long-term money.
If you’ve read about the marginal buyer shift in who buys Treasuries, or how bond duration risk hit even a company like SpaceX, this is the supply-side half of the same story — a shrinking Treasury queue doesn’t mean less competition for long-term cash. It means a new set of borrowers stepped into it.
My take: Everyone’s citing reasons rates should fall — it’s GPU buyers, not the government, actually queuing up to borrow.
Not advice. Just how I see it.