Scott Bessent’s Treasury bond buyback scheme has prompted scrutiny on Wall Street, with investors questioning whether the operation was intended simply to improve market liquidity or to influence the cost of US government borrowing.
The US Treasury announced the multi-billion-dollar purchases of long-dated Treasury bonds after 30-year yields moved towards a near 20-year high last month. By reducing the supply of those securities, the operation pushed yields lower, potentially easing borrowing costs for households, businesses and the government.
The timing fuelled speculation. US national debt has reached $40 trillion, while interest payments are expected to exceed $2 trillion in the 2026 fiscal year. Lower bond yields would reduce the cost of servicing that debt.
Stanley Druckenmiller, the veteran investor who taught Bessent, argued in a Wall Street Journal opinion article that a “credible fiscal package” from Washington would have done more to lower yields than what he described as “artificially suppressing” them through “price management”.
Bessent has not said that the buyback was designed to set prices, however. Treasury officials have presented it as a measure to support the functioning of the bond market, rather than an attempt to establish a target yield.
Why the Treasury says it acted
Christina Parajon Skinner, a Wharton professor who worked at the Treasury from July 2025 until August, said the operation appeared to be an exercise in market efficiency and liquidity management.
“From the outside looking in, this very clearly does look like liquidity management, a market functioning exercise, which I don’t at all perceive to have been anything remotely close to a failure,” she said.
Regular Treasury repurchases were introduced in May 2024, she noted. The more recent change was the size of the transactions, which rose from $2 billion per operation to $4 billion.
“The Treasury has never been a passive buyer of government debt,” Skinner said. She argued that the department’s responsibility was to ensure the government could borrow in the most efficient market possible and to use tools created to provide liquidity during periods of strain.
Higher yields, the scale of US borrowing and the Treasury’s intervention in the Japanese yen had combined to create the impression that the buyback had a broader purpose, Skinner said. But she warned that it would be an error to confuse supporting market efficiency with setting equilibrium prices.
Several weeks before announcing the bond purchases, Bessent had intervened to buy yen. One interpretation was that the move discouraged Japan, the largest holder of US debt, from selling American bonds to support its currency. Such sales could have pushed US yields higher and increased the government’s borrowing costs.
Investors look for a wider policy signal
Thierry Wizman, global foreign exchange and rates strategist at Macquarie, also said the Treasury had long influenced the government bond market and did not view the buyback as evidence of a fiscal management crisis.
“When I see people debating what someone meant, I typically tend to go to the horse’s mouth,” Wizman said. “He’s speaking about liquidity, and the question is how do you interpret that, especially since he didn’t talk about … the deficit [or] a yield target.”
Wizman suggested the intervention could be linked to the pressure created by heavy government borrowing across developed economies. If governments issue large amounts of debt, that can crowd out corporate borrowers, including companies seeking finance for artificial intelligence infrastructure.
“If there’s a pressing need to allow AI infrastructure to get built out and financed, you certainly wouldn’t want all of that government debt issuance to crowd out the corporate issuance, and therefore we need to make space,” he said.
He added that it was not the Treasury secretary’s role to favour one industry, but said President Donald Trump had made clear his desire to run the economy strongly in support of artificial intelligence. The Treasury, Wizman argued, would then be responsible for carrying out that broader policy direction.
Bessent’s recent response to criticism has added to the attention. Speaking to former White House strategist Steve Bannon on a podcast, he said: “If some of the Bloomberg Terminal bros are unhappy with what I’m doing, well, that’s too bad.”
Wizman said the consequences of the policy would take time to assess, including whether artificial intelligence investment produced productivity gains capable of supporting growth while reducing inflationary pressure.
The risk of revealing a reaction threshold
The immediate effect of the buyback may not be its intended purpose, but the signal it has sent about the circumstances in which the Treasury is prepared to intervene.
Bond yields have been rising in the US, the UK, Japan and France, while government borrowing needs and inflation expectations continue to put pressure on markets. That has raised the possibility that the Treasury operation could establish a precedent for future action.
Yiming Ma, a professor at Columbia Business School, said such communication could reassure markets in the short term by showing that a major buyer would step in during periods of stress. But she warned it could also undermine confidence.
“The fact that you need to come out and say and do these things implies that this market has already lost the confidence of investors,” Ma said.
She argued that the intervention was particularly sensitive because US government debt and the dollar have long been viewed as safe assets that do not require the sort of support associated with less certain emerging-market funding conditions.
Ma said the buyback could create a difficult expectation: if investors come to believe the Treasury will act whenever yields rise sharply, failure to intervene in a future episode could cause confidence to fall dramatically.
