Treasury Twist

Two milestones framed the week in the bond market, and neither was especially welcome. First, the yield on the 30-year Treasury pushed up against 5.3%, its highest level in nearly two decades. Then, on Wednesday, the Treasury department reported that total public debt outstanding had crossed $40 trillion for the first time. The $40 trillion figure is more symbolic than meaningful; the measure economists watch, debt held by the public, sits closer to $32 trillion—roughly 100% of GDP, a share not seen since World War II. The roughly $8 trillion gap between the two figures is money the government owes itself, largely bonds held inside trust funds such as Social Security. The $32 trillion held by the public is the piece that must find a buyer and determines interest rates. Individually, these headlines may not have caused much of a stir, but the two headlines landed together, and the juxtaposition was difficult to ignore. The government owes more than ever and it is happening at a time when investors are demanding more to finance that debt. Into that backdrop stepped the U.S. Treasury Secretary Scott Bessent with a surprise announcement that caught bond investors off guard.

The Twist
Early Wednesday, the U.S. Treasury announced it would at least double its liquidity support buyback operations in the 10-to-30-year portion of the curve, lifting the maximum from $2 billion per operation to at least $4 billion. In plain terms, the Treasury is buying back older, less actively traded long-dated bonds, and funding those purchases with new short-term bonds. It is not retiring debt but rather reshaping it, pulling 10 to 30-year Treasury bonds out of private hands and handing back Treasury bills instead. The concept draws parallels to the Federal Reserve’s 2011–2012 Operation Twist, when they sold shorter-dated holdings to buy longer-dated ones in an effort to flatten the curve. Markets responded instantly to the Treasury’s move with the 10-year yield falling about seven basis points to roughly 4.64%, the 30-year yield dropped nearly a tenth of a percentage point, stocks finished higher and gold jumped more than 3.5% on the day. Relief showed up in rate-sensitive names too; Lowe's, which reported a comparable-sales miss and trimmed full-year guidance that same morning, erased its early decline as housing-linked shares rallied alongside bonds. Home Depot had beaten a day earlier on its best comparable-sales growth since 2022, though large discretionary projects remain pressured by affordability, a reminder of why this administration cares so much about the long end.

Signal Over Substance
We view this operation as a signal from the administration rather than a durable change in how many long-term bonds investors must absorb. Consider the scale: an incremental $14 billion of purchases over two months is small in comparison to more than $32 trillion of publicly held debt. Even annualized, the enlarged pace would represent roughly 2.4% of outstanding debt in those maturities. More fundamentally, the Treasury is not a central bank. The Federal Reserve can create money to buy bonds; the Treasury cannot. Every dollar of long-term bonds it repurchases must be financed by issuing a dollar of short-term bills. Most importantly, the operation does not directly address the underlying drivers of higher rates (deficits near 6% of GDP, a fiscal 2026 shortfall now tracking above $2 trillion and a private sector competing for the same pool of capital). By Thursday, the 10-year interest rate had drifted back toward 4.70%, roughly where it began the week.

Several forces pulling in the same direction is causing demand for greater compensation for long-dated U.S. debt:

• The AI buildout has unleashed an extraordinary wave of corporate borrowing. Goldman Sachs counted roughly $489 billion of AI-related debt issuance this year, already above the $322 billion raised in all of 2025, with those bonds competing directly with the government’s debt issuance.
• Long-end yields are rising across developed markets globally, not only here.
• Oil prices and the inflation path remain in flux, and fiscal sustainability is a chronic concern with no political fix on the horizon.
• Monetary policy is its own question mark as the new Fed Chair Kevin Warsh has been reluctant to offer forward guidance and has suggested he would prefer the market, rather than the Fed, determine the long end, establishing a stance that, we believe, sits awkwardly beside a Treasury secretary actively leaning on it.

Watching the Stable Zone
None of this suggests that a debt crisis is around the corner. The U.S. borrows in its own currency, Treasuries remain the world’s preferred safe asset and buyers keep showing up at auction. This is a dynamic that can run far longer than alarming headlines imply. The nearer-term cost is more subtle. As we’ve highlighted throughout the year, we generally view 3.5% to 4.75% as a “stable zone” for the 10-year U.S. Treasury — the range in which markets appear to be balancing growth, inflation and fiscal risks in reasonable proportion. At 4.7%, we are sitting near the top of that range. History suggests stocks tend to face headwinds when yields push meaningfully above the upper edge, as safer bonds begin competing more directly for investor dollars. That is a line we will be watching closely in the weeks and months ahead.

Takeaways for the Week

• The 30-year Treasury yield reached levels not seen since 2007, and gross federal debt crossed $40 trillion, underscoring an unsustainable long-term fiscal trajectory
• Treasury's surprise decision to double long-end buybacks caught bond shorts off guard and delivered an immediate rally, but the operation is small relative to the market and the effect had largely faded within a day
• Higher long-term rates reflect heavy AI-related corporate issuance, large deficits, rising global sovereign yields and uncertainty around Fed policy, none of which a buyback program can meaningfully address

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