What it is
Quantitative tightening (QT) is a contractionary monetary policy employed by central banks, like the Federal Reserve, to reduce the money supply and withdraw liquidity from the financial system. Unlike interest rate hikes, which influence short-term borrowing costs, QT works by shrinking the central bank's balance sheet. This is primarily achieved by not reinvesting the proceeds from maturing government bonds and mortgage-backed securities, thereby reducing the overall demand for these assets and allowing long-term interest rates to rise.
QT impacts markets by increasing the supply of bonds available for private investors to absorb, which typically pushes bond yields higher. This can tighten financial conditions, making borrowing more expensive for businesses and consumers, and potentially slowing economic growth. Investors follow QT announcements and the pace of balance sheet reduction, as it signals the central bank's stance on inflation and economic activity. A faster QT pace can contribute to market volatility and concerns about a potential recession.
Why it matters
QT can increase borrowing costs and slow economic growth, directly affecting bond yields, market liquidity, and potentially your investment returns.
Reviewed under editorial standardsUpdated September 26, 2026Not investment advice