A 10-year Treasury sale cleared at 4.683% and a 30-year auction at 5.216%, marking the highest auction yields in 19 and 25 years and lifting the government's refinancing cost.
Investors demanded that extra compensation because U.S. debt is nearing $40 trillion, deficits remain large, and sticky inflation and heavy issuance have raised the term premium on longer-dated bonds.
Demand still held up despite the higher yields, with analysts saying buyers are not abandoning Treasuries but are requiring better returns, especially for long-duration debt exposed to inflation and fiscal risks.
The repricing points to a market that remains functional but expects structurally larger borrowing needs, likely keeping pressure on long-term funding costs even if Treasury leans more on short-term issuance.