Fed resumes balance-sheet expansion to ease repo market liquidity strains – News Air Insight

The Federal Reserve’s decision to expand its balance sheet again through the purchase of Treasury bills marks a significant shift aimed at easing the liquidity pressures that have built up across US money markets. After years of shrinking its bond holdings through quantitative tightening, the renewed asset purchases are intended to reassure investors who have grown increasingly concerned about whether the financial system still holds enough reserves to support stable short-term funding conditions.

The Fed announced that it will begin purchasing short-dated government securities on December 12, starting with an initial round of approximately $40 billion in Treasury bills. The move is designed to stabilise liquidity conditions and ensure the central bank maintains control over its interest-rate operating framework.

This policy pivot comes amid persistent signs of stress in the roughly $4 trillion overnight repurchase agreement (repo) market, where banks, dealers, and hedge funds secure short-term loans backed by high-quality collateral such as US Treasuries. In recent weeks, borrowing costs in this market have surged repeatedly, even after the Fed formally ended quantitative tightening. Elevated repo rates, captured through benchmarks such as the Secured Overnight Financing Rate (SOFR), reflect tightened liquidity and force lenders to demand higher premiums for short-term funding.

The strain in funding markets has been attributed to several overlapping forces. Heavy US Treasury bill issuance has absorbed liquidity, while the government shutdown earlier this year led to a build-up of cash in the Treasury General Account (TGA). A higher TGA effectively drains reserves from the banking system because fewer government payments flow into private bank accounts, reducing the pool of funds available for lending.

Although the Fed halted balance sheet runoff this month, that step alone did little to cool repo-market pressures. Funding rates continued to rise, at times exceeding the Fed’s own policy rate. With year-end approaching—a period that traditionally sees temporary but sharp dislocations in money markets—the central bank opted to act sooner than many analysts expected.

By reintroducing bill purchases, the Fed is attempting to stabilise key funding channels, support arbitrage activity between cash Treasuries and futures markets, and provide a more robust liquidity backdrop heading into a typically volatile period. The move is widely seen as a pre-emptive effort to prevent further dysfunction and keep short-term rates aligned with the central bank’s intended policy stance.

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(Disclaimer: This article has been sourced from Reuters)