Forty trillion, and a buyback JPMorgan doesn't believe
The government is managing its borrowing cost by shortening the maturity of its debt, which lowers today's yield and moves the risk to the refinancing.
Gross US federal debt crossed $40tn on Tuesday. It has grown $3tn in a year — the fastest pace outside the pandemic, on the FT's calculation. Debt held by the public now exceeds $32tn, roughly the size of the economy, and annual interest costs have passed $1tn, more than the defence budget. The Treasury's response arrived the same week: buyback operations in the 10-to-30-year sector doubled from $2bn to $4bn apiece, running 9 September to 4 November. The 30-year fell 10bp to 5.18% on the news, off its 5.33% high, the most since 2007. JPMorgan's rates team is not convinced. "Absent real fiscal consolidation, we fear the markets will view this action as lacking credibility," strategists including Jay Barry wrote. Their point is that the US runs a 6% deficit at full employment, and a buyback addresses the symptom. The plumbing is worth being precise about. A buyback is not money creation. Treasury purchases an old, illiquid long bond and must fund that purchase by issuing something else. It has already opened the door to cutting long-dated issuance and deepening its reliance on bills. The net effect, if that is the path, is to shorten the average maturity of the national debt: less duration for the market to absorb today, more of the debt rolling at whatever the short rate is tomorrow. That is a trade, not a solution, and it is the same trade a corporate treasurer makes when long money gets expensive. What we do not know is the funding mix. Treasury has not said. The programme was created in 2024 as market-functioning support and explicitly "not intended to ameliorate periods of acute market stress." It is now being used because yields are high before a midterm. Everyone can see that, including the buyers.