π Treasury Is Unlikely to Become a Substitute for Long-Term Rate Adjustment
The recent focus of market discussion is whether the U.S. Treasury can bring down long-term Treasury yields directly without relying on the Federal Reserve. The optimistic view holds that the Treasury has increased the scale of long-term Treasury buybacks to USD 4 billion and can also draw on the TGA cash balance, potentially providing nearly USD 1 trillion in combined operating capacity.
The key issue with this argument is not whether the Treasury is conducting buybacks, but how much cash is actually available for flexible deployment and whether such operations can be sustained. If drawing on the TGA, issuing less debt, and buying back Treasuries are the primary tools, the actual usable scale may be significantly smaller than the apparent balance. Each time the Treasury uses part of its cash, it must also contend with constraints from its own cash management and financing arrangements. Therefore, directly equating this with βquasi-QEβ capable of suppressing long-end yields over the long term is too hasty a conclusion.
Recent results also provide a real-world test: some observers say that Bessentβs intervention in the bond market last week has not yet reversed the pressure from high yields. This alone does not prove that the tool is ineffective, but it shows that bond investors care more about persistent supply-and-demand, financing, and risk factors than about one-off operations.
What is truly worth watching next is whether the Treasury expands and continues to implement buybacks, and whether long-end yields show repeatable declines after changes in the TGA balance. If the two do not improve in tandem, the claim that the Treasury can replace the Federal Reserve in adjusting long-term interest rates needs to be cooled down.
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