Fed's Concentrated Holdings in 10-15 Year Treasuries Amplify Market Distortions as Treasury Weighs Operation Twist-Like Moves

Recent analysis highlights that the Federal Reserve holds a dominant share—reportedly over 50%—of U.S. Treasury bonds maturing in the 10-15 year range, a concentration stemming from pandemic-era purchases that continues to shape yield curves and liquidity. This position, estimated alongside roughly $4.54 trillion in total Treasury securities on the Fed's balance sheet, creates structural imbalances distinct from a free market. Treasury Secretary Scott Bessent's recent ramp-up of long-term bond buybacks (at least $4 billion per operation, funded by shorter-term issuance) has drawn explicit comparisons to the Fed's historical Operation Twist programs from 1961 and 2011-2012, aimed at lowering longer-term yields without expanding the balance sheet. Mainstream outlets note these interventions have so far produced muted, short-lived effects amid ongoing deficit pressures. The Fed's holdings also include nearly half a trillion in near-term coupon bonds with low average coupons (~2.9%), leading to negative carry relative to current funding rates around 3.6%. Proposals for the Fed to extend duration via swaps could further entrench its market share in longer maturities (potentially exceeding 15-20% of certain buckets), raising questions about price discovery, volatility transmission to equities and housing, and indirect effects on retirement portfolios and fixed-income investors. While not QE, such concentration ties directly to broader stability risks as policy evolves.