Yield Curve Inversion

A yield curve inversion occurs when short-term Treasury yields rise above long-term yields, producing a negative spread. The most widely tracked measure is the 2s10s spread (10-year minus 2-year yield), though the 3-month/10-year spread is the Federal Reserve's preferred indicator.

Inversions are significant because they have preceded every U.S. recession since the 1960s, typically with a lead time of 6 to 24 months. The logic is straightforward: when the market expects the Fed to cut rates in response to economic weakness, it bids up long-term bond prices (pushing long yields down) while short-term yields remain elevated by current Fed policy.

Not every inversion leads to recession, and the lead time is variable. The 2022-2024 inversion was the deepest since the early 1980s, with the 10Y-3Mo spread reaching -189 bps in May 2023.

An inversion reflects several forces:

• Expectations channel: Markets price in future rate cuts due to anticipated economic slowdown
• Term premium compression: Flight to quality pushes long-term yields down
• Monetary policy tightening: The Fed raises short-term rates to combat inflation

The depth and duration of the inversion, combined with the specific spread being measured, influence its predictive value. Shallow, brief inversions are less reliable signals than deep, sustained ones.