JPMorgan warns Treasury debt buybacks mask underlying borrowing surge
The U.S. Treasury's plan to double its bond buybacks may offer temporary relief, but JPMorgan warns the strategy ignores a massive global surge in sovereign and corporate debt that will ultimately force yields higher.
The U.S. Treasury Department plans to at least double the size of its government debt buybacks between September 9 and November 4. Led by Secretary Scott Bessent, the strategy involves purchasing longer-duration bonds while simultaneously issuing shorter-dated bills to manage near-term borrowing costs.
James Sullivan, co-head of global fundamental research at JPMorgan, argued this approach merely shifts the underlying debt burden rather than solving it. He compared the maneuver to "paying your mortgage with your credit card," noting that while the tactic functions temporarily, the maturity mismatch eventually becomes glaringly obvious.
Sullivan warned that government attempts to control markets rarely produce attractive long-term outcomes. The intervention might suppress borrowing costs in the short term, but it ignores the massive wall of sovereign and corporate obligations that ultimately requires capital.
This dynamic arrives as governments face unprecedented borrowing requirements. Sullivan highlighted approximately $40 trillion in U.S. government debt and roughly $76 trillion across developed-market sovereigns globally, creating a daunting environment for finding willing buyers to absorb the continuous supply.
Securing that demand is becoming increasingly difficult as traditional international supporters retreat from the market. China's holdings of U.S. Treasurys have fallen to an 18-year low, and overall foreign government custody holdings currently sit at their lowest level in 14 years.
The competition for investor capital is further intensified by record corporate bond issuance. Leading artificial intelligence companies have raised $200 billion in debt this year, an 80% increase from the previous period, to fund highly capital-intensive data centers and infrastructure projects.
Even with strong underlying economic fundamentals, this sheer increase in bond supply matters for market mechanics. Sullivan noted that "the only way you balance supply and demand is through price," suggesting issuers will eventually need to offer more attractive yields to clear the market.
This shifting yield environment is already complicating portfolio construction for institutional investors. Bond yields now exceed the earnings yield on the S&P 500, making fixed-income assets increasingly competitive against highly valued equities. Sullivan concluded that "the asset allocation decision becomes significantly more complex going forward" as these macroeconomic pressures play out.
