What does the Fed balance sheet mean for interest rates?
Since the Global Financial Crisis, the Fed has increased its use of its balance sheet as a monetary policy tool, purchasing U.S. Treasury securities and agency mortgage-backed securities to help influence longer-term interest rates and broader financial conditions alongside changes to the federal funds rate.8
By buying bonds, the Fed aimed to lower long-term interest rates, making borrowing cheaper and stimulating economic activity. This process is known as quantitative easing.
Conversely, the Fed can reduce its balance sheet by selling bonds or allowing them to mature without reinvestment. This increases the amount of Treasury and mortgage-backed securities available to private investors, which can put upward pressure on longer-term interest rates and tighten overall financial conditions, a process known as quantitative tightening.
A new task force focused on the balance sheet will evaluate both the size and composition, while considering the need to provide the banking system with ample reserves. No new announcements were made at the June meeting aside from the task force creation. The Fed’s balance sheet is $6.7 trillion or 21% of nominal GDP – but has declined by $2.2 trillion since June 2022. 9
In contrast to the Fed, the U.S. Treasury Department increased the size of the U.S. Treasury buyback program. This program’s goal is to improve liquidity and stability in the U.S. Treasury bond market. In August 2026, the U.S. Treasury increased the size of its buyback operations for longer-maturity U.S. Treasuries.10 This program is expected to continue, providing support for the bond market.