US Treasury sets $6 billion bond buyback ceiling on Sept. 10

The US Treasury has established a $6 billion ceiling for a buyback of older long-dated bonds on Sept. 10, allowing dealers to offload inventory. This ceiling is three times the previous $2 billion limit and exceeds the $4 billion minimum expansion announced on Aug. 19. The buyback targets Treasury securities with 10 to 20 years remaining, scheduled from 1:40 p.m. to 2 p.m. Eastern, with settlement on Sept. 11. Eligible maturities range from Sept. 11, 2036, to Sept. 10, 2046. Treasury's buyback rules aim to provide liquidity support for selling older securities, differing from cash-management buybacks. A May 2025 IMF paper indicated that such operations could improve Treasury trading liquidity and reduce dealer holdings, particularly when inventories are high. The buyback will retire purchased bonds rather than reintroducing them to the market, potentially reducing inventory pressure on dealers. The ceiling is a maximum amount with no minimum purchase commitment, allowing Treasury to accept less or nothing based on offers. While a large purchase would indicate bond trading activity, it does not directly reflect dealers' balance-sheet pressure. Market functioning will be assessed by narrower gaps between buying and selling prices and less strained pricing of older bonds. For Bitcoin, the impact hinges on whether this relief extends to broader funding conditions, including secured borrowing. Improved dealer intermediation could be a first step, while ongoing bond or funding strain may undermine this potential relief.

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