What Is the Yield Curve? Why Inversions Signal Recession

The yield curve is a graph that plots the interest rates (yields) of U.S. Treasury bonds across different maturities — from 1-month bills to 30-year bonds. In a normal economy, longer-term bonds pay higher yields because investors demand more compensation for locking up money for longer periods.

Normal vs. Inverted Yield Curve

A normal (upward-sloping) yield curve means long-term rates are higher than short-term rates. This is healthy — it signals that investors expect economic growth and moderate inflation. An inverted yield curve means short-term rates are higher than long-term rates, signaling that investors expect the economy to weaken and the Fed to eventually cut rates.

The Recession Prediction Track Record

The 10-year minus 2-year Treasury spread has inverted before every U.S. recession since 1955, with only one false positive (1966). The typical lead time is 12-18 months from inversion to recession onset. This makes it one of the most reliable recession indicators available.

Why Inversions Happen

Inversions occur when the Fed raises short-term rates aggressively to fight inflation, pushing 2-year yields up, while long-term investors accept lower yields because they expect the economy to slow and the Fed to eventually cut rates. The gap between short-term Fed policy and long-term market expectations creates the inversion.

What Executives Should Watch

The most-watched spread is the 10-year Treasury yield minus the 2-year Treasury yield. When this spread goes negative, recession risk rises significantly within 12-18 months. The depth and duration of the inversion matters — deeper and longer inversions tend to precede more severe recessions. The un-inversion (when the curve normalizes) is often the more immediate recession signal, as it typically occurs just before or during the onset of recession.