The yield curve plots interest rates across bonds of the same credit quality but different maturities — typically U.S. Treasuries from 1 month to 30 years. Its shape (normal, flat, or inverted) is one of the most closely watched signals in all of finance.
Why It Matters
The yield curve prices nearly everything else in fixed income and drives bank profitability directly (banks borrow short and lend long, so a flat or inverted curve compresses net interest margin). An inverted curve — short-term rates above long-term rates — has preceded most U.S. recessions since the 1960s, which is why it gets tracked as closely as it does.
How It Works in Practice
- 1Plot yields for a range of maturities of the same issuer/credit quality, typically Treasuries, at a single point in time
- 2A 'normal' curve slopes upward, since investors typically demand more yield for locking up money longer
- 3A 'flat' curve shows little difference between short and long yields; an 'inverted' curve has short-term yields above long-term
- 4The 2-year/10-year and 3-month/10-year spreads are the most commonly cited inversion signals
Common Pitfalls
An inverted curve is a probabilistic signal, not a precise timer — recessions have followed inversions anywhere from several months to over two years later
Central bank policy (rate hikes/cuts) directly moves the short end of the curve, so an inversion can reflect deliberate tightening rather than a market recession forecast
Different curve segments (2s/10s vs. 3-month/10-year) can send conflicting signals at the same time