The Federal Reserve Board published an analysis showing that reductions in its balance sheet can increase Treasury financing needs and constrain repo funding, with the resulting rate pressures potentially spilling into the federal funds market even before bank reserves fall below minimum demand. The effects become materially stronger when aggregate Federal Reserve liquidity, measured as reserves plus overnight reverse repo balances, is low relative to gross domestic product. Based on data from September 2014 to March 2026, the analysis estimates that USD 100 billion of net Treasury coupon and bill issuance raises repo rates by 3.9 and 1.3 basis points, respectively, while a USD 100 billion increase in primary dealers’ net Treasury holdings adds about 6 basis points. At liquidity below 10% of GDP, USD 50 billion of net coupon issuance is associated with an increase of almost 10 basis points in the tri-party general collateral rate spread over the interest rate on reserve balances, compared with less than 1 basis point when liquidity exceeds 12% of GDP. Repo rate increases also have a small but statistically significant effect on the effective federal funds rate at low liquidity levels, while the estimated effect is essentially zero when liquidity is 12% of GDP. The relationship is also shaped by the policy rate, Treasury bill supply, dealer regulation and standing repo operations. Reserve management purchases announced in December 2025 had totaled about USD 120 billion through mid-April, reducing privately held bill supply and contributing to a shift by money market funds toward repo lending and a decline of several basis points in repo rates.
2026-08-26Federal Reserve Board
US Federal Reserve Board analysis finds low liquidity amplifies repo rate pressures and spillovers to federal funds
Federal Reserve Board analysis finds that low aggregate liquidity sharply increases the sensitivity of repo rates to Treasury issuance and dealer financing demand. Repo pressures can then spill into the effective federal funds rate, although the estimated transmission is negligible when liquidity reaches 12% of GDP. Reserve management bill purchases had totaled about USD 120 billion through mid-April and contributed to lower repo rates.