30-year Treasury auction draws softer demand as bond investors weigh a $2 trillion deficit
The Treasury sold $25 billion of 30-year bonds at a high yield of 5.441%, after a week of underwhelming auctions that included a weak 10-year sale.
The Treasury’s auction of 30-year bonds on Thursday showed slightly softer-than-expected demand1,2.
The Treasury sold $25 billion of the bonds1,3.
The auction produced a high yield of 5.441%4.
The sale was scheduled for 18:00 GMT, or 13:00 EST3.
Demand at the sale fell slightly short of what the market had expected going into the auction1,2.
Auction results earlier in the week had already been somewhat underwhelming, and Monday’s 3-year auction was mixed3.
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A week of weak demand
The latest 10-year auction drew weak demand from investors6.
That sale followed a hot inflation reading and a Fed official’s signal of an aggressive rate increase, which together spurred the most violent bond sell-offs in months6.
The batch of $42 billion of 10-year debt was sold at 5.02%, above the 5.01% yield on the same debt in the secondary market6.
Selling at a yield above the market level means the Treasury paid more to place its debt than existing bonds were yielding6.
Long US bonds reopened with gains on Thursday as risk sentiment soured again, before the 30-year sale5.
A looming fight over the debt ceiling is also on bond investors’ radar5.
The 30-year sale was part of a week of Treasury auctions that also included 3-year and 10-year debt3,6.
Why it matters to investors
The Treasury needs to keep financing a budget deficit of nearly $2 trillion, so it must keep selling large amounts of debt at auctions like this one4.
Coverage of the 30-year sale argued that deficit financing has become an even bigger fear for the bond market than fallout from AI4.
Softer demand at long-dated auctions puts upward pressure on the yields the government pays, and on borrowing costs that are priced off them1,4.
The weak 10-year sale may also lend support to China’s push to reduce reliance on the dollar and internationalise its own currency6.
The pattern of underwhelming sales this week comes as Fed officials are discussing larger or more frequent rate increases3,6.
Investors will watch the next round of coupon auctions and the deficit figures for signs of whether demand for long bonds recovers3,4.
Sources
- U.S. 30-Year Treasury Auction Shows Softer Demand - MarketWatch, marketwatch.com (2026-11-12)
- U.S. 30-Year Treasury Auction Shows Softer Demand - Morningstar, morningstar.com (2026-11-12)
- Primer: US to sell USD 25bln of 30-year bonds at 18:00GMT/13:00EST | Newsquawk, newsquawk.com (2026-11-12)
- The bond market now has an even bigger fear than AI fallout - Morningstar, morningstar.com (2026-11-12)
- Long US Bonds Reopen With Gains as Risk Sentiment Sours Again - Bloomberg.com, bloomberg.com (2026-11-12)
- Inflation jitters throw a wrench into US Treasury auction as Fed official flags jumbo hike, scmp.com (2026-11-11)
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