JP Morgan’s markets intelligence team says the US Treasury has raised single
buyback size for 10+-year Treasures from up to $2bn to at least $4bn. That may
temporarily ease long-end supply pressure, but financing needs persist and the
burden could shift to the short end. If the Treasury increases short-term
issuance to fund buybacks, it effectively swaps long-term debt for shorter
maturities—lowering term premium briefly while raising refinancing frequency and
rate re-pricing risk, and accelerating interest-cost exposure if policy rates
remain high. JP Morgan stresses these are debt-management operations, not QE:
they do not create reserves or have the Fed absorb duration. Markets should
watch long-end yields, short-term issuance volumes and whether the Treasury’s
average financing maturity continues to shorten.