Bessent Raises Treasury Buyback Size Again to Cap Long-End Yields

Treasury Secretary Scott Bessent said the Treasury has just raised the size of its bond buyback operation again, extending an unusual effort to lean against rising long-end yields.

The move is the latest escalation of a program that has already been doubled and then tripled from its prior baseline, and it is being closely watched by rates traders trying to gauge how far the Treasury is willing to go.

What Bessent just did

Bessent tripled the initial target size for a recent buyback of 10- to 20-year government bonds, boosting the ceiling from $2 billion to $6 billion. The Treasury has now signaled it is prepared to keep pushing that number higher if market conditions call for it.

Bessent has previously told CNBC that the Treasury’s buyback program of government debt could surpass the $4 billion announced earlier, one day after he announced a doubling of purchases this fall. The latest bump keeps that trajectory intact.

Why the size keeps going up

Under the change announced on Aug. 19, the Treasury’s maximum buyback authority rises from $2 billion per operation to at least $4 billion per operation, which will serve as a floor rather than a cap to allow the size of buybacks to respond to market conditions.

The Treasury is trying to signal support during a typically thin trading session, particularly for the 30-year, at a time when heavy corporate bond issuance is distorting the market. Translation for traders: the Treasury is effectively acting as a marginal buyer at the long end.

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The market’s reaction has been mixed

When the Treasury announced it would buy back up to $6 billion of longer-dated government debt, the move drove yields higher rather than lower as markets had priced in an even larger intervention. The 10-year Treasury yield touched 4.841%, a level last seen before November 1, 2023, and the 30-year bond yield rose 5 basis points to 5.307%, breaching the 5.3% threshold that bond markets had watched closely.

Some on Wall Street had anticipated a buyback of $7 billion to $10 billion or more, with a segment of the market bracing for a figure closer to $7 or $8 billion. That is the setup going into the next size bump: expectations keep climbing faster than the operation.

The bigger picture

The Treasury surprised markets last week with an announcement that it would be doubling the size of buybacks of off-the-run securities on the long end from $2 billion to at least $4 billion. Sources have also flagged that the Treasury General Account could be tapped to help fund the program.

Bessent has been chastised by many for his recent attempt to manage prices in the bond market. As 30-year Treasury yields rose toward a near-20-year high last month, the Treasury announced a multi-billion-dollar buyback scheme on long-dated Treasuries, which reduced supply and pushed yields down. With long-dated yields used as a benchmark for borrowing costs across the economy, conditions should have loosened in theory for everything from mortgage and government interest rates to business loans.

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Options market and stocks to watch

Watch for continued flow in long-duration Treasury ETFs and rate-sensitive names as traders position around every new buyback size print.

• TLT: watch for reaction in the 20+ year Treasury ETF, the cleanest proxy for the buyback impact on long-end yields.
• TLH: watch for flow in the 10-20 year Treasury ETF, which sits directly in the maturity bucket being bought.
• TBT: watch for short-duration positioning if traders fade the Treasury’s effort to cap yields.
• XHB: watch homebuilders, since mortgage rates track the long end that Bessent is trying to pin down.
• XLF: watch banks, whose NIM and bond portfolios are directly exposed to any move in the long end.

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