• Federal Reserve official Stephen Miran pushes for significantly shrinking the central bank's balance sheet beyond current levels, calling a smaller balance sheet the "right way" forward.
  • Miran highlights regulations as a major factor influencing optimal balance sheet size, creating tension with the Fed's recent decision to end quantitative tightening.
  • The Fed faces a "balance sheet trilemma" where achieving stable rates, limited intervention, and a smaller balance sheet simultaneously proves impossible, according to internal analysis.

Stephen Miran, a Federal Reserve official known for his hawkish stance, has reignited debate over the central bank's balance sheet policy by advocating for more aggressive reduction than current plans allow. "I want to shrink the balance sheet by a lot more," Miran said recently, according to people familiar with his position. "A smaller balance sheet is the right way."

His comments come just weeks after the Federal Reserve officially ended its quantitative tightening program on December 1, 2025, having reduced its balance sheet from over $9 trillion in 2022 to approximately $6.5-6.6 trillion. This marked the conclusion of a balance sheet reduction effort that had been in place since June 2022, but Miran's position suggests some within the Fed believe the work isn't finished.

Miran's advocacy for further shrinkage represents a philosophical divergence from the Fed's current approach. During the October 2025 FOMC meeting, he was one of two dissenting votes, favoring a 50 basis point rate cut rather than the 25 basis point reduction that was approved. His balance sheet position appears consistent with this more aggressive monetary policy stance.

What makes Miran's position particularly noteworthy is his acknowledgment that "regulations are a big issue" for determining the Fed's optimal balance sheet size. Capital requirements, liquidity standards, and post-2008 banking regulations directly influence how much liquidity the banking system requires and how the Fed must manage reserves. These regulatory frameworks create structural constraints that any balance sheet reduction must navigate.

The Fed currently faces what economists describe as a "balance sheet trilemma" where achieving all three objectives—maintaining low interest-rate volatility, limiting market interventions, and operating with a smaller balance sheet—simultaneously proves impossible. According to Federal Reserve analysis obtained by sources, the central bank can achieve both stable rates and limited intervention only by maintaining a larger balance sheet with ample reserve buffers.

Rather than pursuing further aggressive reduction, the Fed has shifted toward reserve management purchases beginning December 10, 2025. The central bank plans to reinvest principal payments from its securities into Treasury bills with short maturities (4 to 52 weeks), an approach designed to maintain adequate reserves without pursuing additional balance sheet shrinkage.

This cautious strategy reflects lessons learned from the previous quantitative tightening episode between 2017 and 2019, which ended with significant stress in repo markets. Current bank reserves remain substantially higher than during that period, providing a larger buffer against funding market stress, but Miran's position suggests some policymakers believe this buffer remains excessive.

There is no consensus among economists or policymakers about the appropriate steady-state size for the Fed's balance sheet. Some analysts argue for maintaining higher reserves to ensure rate stability, while others, like Miran, advocate for returning to smaller pre-pandemic levels. The debate ultimately centers on whether financial stability and operational efficiency are better served by a larger structural footprint or by more active market management with a leaner balance sheet.

Attempts to reach Miran for additional comment were unsuccessful, and the Fed declined to elaborate beyond its published statements. Market participants will be watching closely for any shift in the Fed's balance sheet rhetoric, particularly as the central bank navigates the competing demands of monetary policy normalization and financial stability concerns.