U.S. Treasury to auction $25 billion of 30-year bonds at highest yield since 2001

The U.S. Treasury announced a $25 billion auction of 30-year Treasury bonds for Thursday, with a when-issued yield projected near 5.23%, the highest level for the instrument since 2001. The elevated yield reflects a combination of higher Treasury supply, rising long-term inflation expectations and reduced demand from traditional long-duration investors.

Investors have been cautious about locking in yields at multi-decade highs, and the market has not shown a surge in buying interest. "We’re not really at a level where people seem to be going crazy, saying ‘I want to buy the 30-year,’ and that should be a warning," said John Fath, managing partner at BTG Pactual Asset Management US.

The Treasury recently adjusted its quarterly borrowing guidance, indicating that it is considering changes to the size of future long-bond sales. Analysts interpret the language as a signal that officials may curb the supply of 30-year notes, though any reduction is not guaranteed. If the auction clears at the projected yield, it would mark the steepest borrowing cost for the 30-year bond since the Treasury halted the issue in 2001.

Higher yields are also influencing the broader fiscal picture; interest on the public debt has risen 15% year-to-date to $1.17 trillion, driven in part by the surge in Treasury rates. "We expect today’s 30-year auction to clear without difficulty, but a successful auction shouldn’t be confused with strong structural demand for long-duration assets," wrote Michal Stanczyk, portfolio manager at Allspring Global Investments.

The Treasury’s longer-term strategy appears to be shifting toward shorter-maturity issuances, a move that could lower immediate borrowing costs but increase refinancing risk. "The only clear solution I see is the US government tightening its budget," Fath added, suggesting that fiscal restraint is needed to bring down long-term borrowing costs.