The US Treasury set a $6 billion ceiling for a September 10 buyback of older long-dated Treasury securities, triple the previous $2 billion limit and exceeding the minimum $4 billion expansion announced in August.
The operation targets nominal Treasury securities with 10 to 20 years remaining, with eligible maturities spanning September 11, 2036, through September 10, 2046. Trading is scheduled from 1:40 p.m. to 2 p.m. Eastern, with settlement on September 11.
How the Buyback Works
Treasury's buyback program provides a predictable outlet for dealers to sell off-the-run securities—older issues that are more difficult to trade. Unlike cash-management buybacks that smooth government cash balances, this operation focuses on liquidity support.
Treasury retires purchased bonds at settlement rather than lending them back into the market, reducing inventory for dealers to carry. However, the $6 billion ceiling is a maximum face amount with no minimum purchase commitment. Actual purchases depend on dealer offers, and the Treasury may accept less or nothing.
Repurchases can use debt-sale proceeds and general-fund money, so the ceiling alone does not create net liquidity.
Measuring Program Impact
A May 2025 IMF working paper found that Treasury buyback operations produced modest improvements in trading liquidity and reduced dealer holdings, with stronger effects when inventories were elevated.
The program's effectiveness extends beyond purchase volume. Key indicators include narrower spreads between bid and ask prices, less strained pricing of older bonds relative to newer issues, and sustained market functioning improvements following settlement on September 11.
Whether the operation generates broader relief in funding conditions—including borrowing secured by securities—remains to be demonstrated through post-operation market data rather than the ceiling alone.
