Long-term US Treasury yields climbed sharply on Wednesday after the Treasury Department announced a $6 billion (€5.2bn) buyback of long-dated bonds, a figure that disappointed investors hoping for a more aggressive intervention. The yield on the benchmark 10-year note rose above 4.85%, its highest level in nearly three years, before easing slightly. The 30-year bond yield stood at 5.29%, up from 5.26% a day earlier, and remains near its August peak of 5.33%—a level not seen since 2007.
The move is part of a broader plan unveiled by Treasury Secretary Scott Bessent on 19 August to “at least double” buybacks of long-dated government debt, aimed at supporting liquidity in a market that has become increasingly volatile. The latest operation, set for Thursday, is three times the size of the previous buyback, but many traders had expected a figure of $10 billion (€8.6bn) or more, based on Bessent’s earlier comments.
“The Treasury market spent the morning waiting for Scott Bessent to reveal how much firepower he was prepared to put behind the expanded buyback program,” wrote financial commentator Stephen Innes in a Substack column. “When the number finally arrived, it was larger than the original commitment but still too small to satisfy a market already choking on duration.”
The disappointment was echoed by Briefing.com analyst Patrick O’Hare, who said the size of the buyback could explain the jump in yields. He also suggested that “the market sees it more or less as a shell game,” criticising the plan as a “forced effort that’s too obvious.”
Global ripple effects
Treasury yields are a benchmark for borrowing costs worldwide, and sustained increases can make mortgages, business loans, and other forms of credit more expensive for households and companies—not just in the US, but also in Europe and other regions. Higher yields can also slow economic growth and weigh on equity markets, adding to concerns for investors on both sides of the Atlantic.
The rise in yields was compounded by a surge in Brent crude oil, which climbed above $100 a barrel for the first time since late July amid an escalation in the US-Iran conflict. Higher energy prices feed into inflation expectations, which in turn push bond yields higher.
Analysts have linked the recent yield increases to several factors, including high oil prices, heavy investment in artificial intelligence, and a surge in US government borrowing driven by the budget deficit. The buyback plan has drawn criticism from prominent figures in finance, including billionaire investor Stanley Druckenmiller, Bessent’s former mentor.
“Markets aggregate information no committee possesses, and prices are how that information reaches decision makers,” Druckenmiller wrote in a Wall Street Journal opinion piece. “Every basis point of artificial yield suppression is a subsidy to procrastination.”
Traders also see tension between the Treasury’s buyback plan and Federal Reserve Chair Kevin Warsh’s efforts to tackle persistent inflation. Futures markets have increased the implied probability of a Fed interest rate rise as oil prices and bond yields have climbed.
For European observers, the US bond market remains a key indicator of global financial stability. A sustained rise in US yields could put pressure on European central banks to adjust their own monetary policies, and could affect the euro-dollar exchange rate. The situation also comes as European gas prices surge, adding to inflationary pressures on the continent.
Investors will now turn their attention to US wholesale and consumer inflation figures due on Thursday and Friday, which could provide further direction for bond markets. The outcome will be closely watched in Frankfurt, London, and other financial centres, as the ripple effects of US monetary policy are felt across the Atlantic.
