US Treasury doubles down on buybacks to tame surging long-dated bond yields

The US Treasury just pulled one of the bigger levers in its toolkit. On August 19, the department announced it would at least double the maximum size of its liquidity-support buyback operations for longer-dated nominal coupon securities, raising the cap from $2 billion to a minimum of $4 billion per operation.

The target: the 10- to 30-year segment of the bond market, where yields have climbed to multi-year highs and demand has thinned out at exactly the wrong time for a government that needs to borrow a lot of money.

What the Treasury is actually doing

The scaled-up buyback operations will run from September 9 through early November 2026, covering both the 10- to 20-year and 20- to 30-year sectors. These aren’t new debt purchases in the traditional sense. Liquidity-support buybacks involve the Treasury repurchasing older, less-traded “off-the-run” securities. The goal is to reduce market dislocation and improve trading conditions, not to finance new spending.

The move builds on a quarterly buyback schedule released just two weeks earlier, which had already earmarked up to $38 billion in liquidity-support buybacks for the quarter. Doubling the per-operation cap represents a meaningful escalation of that plan.

Treasury Secretary Scott Bessent framed the buybacks as a core part of the department’s strategic toolkit for addressing market conditions.

Markets responded quickly

The announcement had an immediate effect on yields. The 10-year Treasury yield fell to approximately 4.65% after earlier testing levels near 4.75%.

Why long-dated yields have been climbing

The Treasury’s intervention didn’t happen in a vacuum. Persistent fiscal deficits require constant borrowing, and the supply of new Treasuries has been outpacing demand, particularly from foreign buyers who have grown more selective.

Significant corporate debt issuance has been competing with Treasuries for investor capital. Evolving expectations around Federal Reserve policy and inflation dynamics have also complicated the picture, with longer-dated securities embedding expectations about future inflation and fiscal sustainability that have been trending in an uncomfortable direction.

The result has been a market where the 10- to 30-year segment specifically has shown signs of reduced liquidity and wider bid-ask spreads.

What this means for markets and investors

The Treasury’s buyback escalation is, at its core, a supply management strategy. By removing older, illiquid bonds from the market, the department is trying to improve overall market functioning and put downward pressure on yields. It’s a more surgical approach than the Federal Reserve buying Treasuries outright through quantitative easing.

For bond investors, the enhanced liquidity support reduces some of the tail risk associated with holding long-dated Treasuries. For equity investors, lower long-term yields generally support equity valuations by reducing the discount rate applied to future earnings.

The buyback program runs through early November, but the structural forces driving yields higher—deficit spending, debt supply, and global rate dynamics—operate on a much longer timeline.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.