AI Data Insight
As of September 18, 2026, U.S. Treasuries on the Federal Reserve's balance sheet reached $4,554.45 billion, slightly increasing by about $2.1 billion from the previous week. This change reflects the Fed's reserve management purchases and MBS principal reinvestment to maintain liquidity in the financial system. This indicates that quantitative tightening (QT) has practically entered a new phase, and market funding pressure is expected to gradually ease.