Scott Bessent's $6B bond buyback fails to halt Treasury yield rise

The Treasury Department announced Wednesday that it will buy back up to $6 billion of longer-dated government debt, tripling the normal size of its buyback operation — but the move drove yields higher rather than lower, as markets had priced in an even larger intervention.

The 10-year Treasury yield touched 4.841%, a level last seen before Nov. 1, 2023, the day it peaked at 4.935%. The 30-year bond yield rose 5 basis points to 5.307%, breaching the 5.3% threshold that bond markets had watched closely. A basis point represents one-hundredth of a percentage point, and bond prices move in the opposite direction from yields.

Some on Wall Street had anticipated a buyback of $7 billion to $10 billion or more, according to CNBC. Peter Boockvar of The Boock Report noted that a segment of the market had been bracing for a figure closer to $7 or $8 billion. "Treasury announced buybacks less than hoped for (or feared depending on your point of view)," Mizuho economist Alex Pelle wrote. Pelle added that Treasury Secretary Scott Bessent is "facing an uphill battle, in terms of trying to move against the general momentum of the market."

Thursday's buyback operation, which covers 10- and 20-year notes, is structured as a 20-minute window set to close at 2 p.m. ET. Treasury also said future operations will be set at a minimum of $4 billion.

Rising yields have also been driven by oil prices. Brent crude futures climbed above $100 a barrel for the first time since late July, while U.S. West Texas Intermediate futures added more than 3% to trade above $96 a barrel. The development follows an escalation in the U.S.-Iran conflict: Tehran announced Wednesday that its forces had targeted two American vessels and eight oil tankers in the Gulf, a retaliatory strike it said came in response to the U.S. destroying five Iranian crude oil tankers.

Bessent had dared traders to challenge his interventions, saying at an event in Texas: "I am the house now. And you can bet against me if you want." The Treasury's buyback program, first announced on August 19 with a pledge to at least double the normal $2 billion operation, has been accompanied by a parallel intervention to support the Japanese yen — an effort partly designed to discourage Japan, the largest foreign holder of U.S. debt at $1.1 trillion, from selling its Treasury holdings.

Stanley Druckenmiller, the billionaire investor who mentored Bessent early in his career, has called the approach a mistake. "Once markets believe Treasury is defending a price, every rise in yields becomes a test of official resolve, and the operations must grow to survive the tests," Druckenmiller wrote in a Wall Street Journal op-ed. "Governments defending prices against fundamentals always lose."

The yield surge is unfolding amid a convergence of pressures: federal debt that has blown past $40 trillion, inflation anxieties stoked by tariffs and the Iran conflict, and a 11.8% year-over-year jump in Treasury issuance since 2025.