US Treasury short-term debt issuance rising to near 2020 highs, increasing vulnerability to interest rate swings and debt-servicing cost pressures.
Macro & Markets ·
US Treasury bills represent roughly 21% of marketable Treasury securities, approaching 2020 pandemic levels and nearly double the 10-15% historical norm from 2012 to 2019. The shift toward short-term debt issuance reflects growing reliance on T-bills to fund federal borrowing needs. If current issuance patterns continue through FY2027, T-bills could reach approximately 25% of total debt, the highest share since 2004 excluding the 2008 financial crisis and 2020. This strategy exposes the government to increased vulnerability from interest rate fluctuations and elevated debt-servicing costs if rates remain high or climb further.