A humped yield curve appears when intermediate maturities yield more than both the short end and the long end. Instead of a simple upward or downward slope, the curve rises into the middle and then falls again.
Why It Matters
This shape matters because it suggests the market is not pricing maturity risk in a simple linear way. Something is putting unusual pressure on the belly of the curve, such as:
- concentrated supply or demand in intermediate maturities
- shifting policy expectations
- uneven inflation or growth expectations across time horizons
How It Works in Finance Practice
A humped curve can change how traders think about:
- where the richest or cheapest maturities sit
- curve trades involving the belly versus wings
- key rate duration exposure rather than one headline duration number
Practical Example
If 2-year bonds yield 4.2%, 5-year bonds yield 4.7%, and 10-year bonds yield 4.4%, the curve is humped because the middle maturity yields the most.
Humped does not mean the whole curve is high
It only means the intermediate area is high relative to the short and long ends.
Humped is not the same as steep
A steep curve keeps rising with maturity. A humped curve peaks and then declines.
- Yield Curve: The broader benchmark structure this shape belongs to.
- Flat Yield Curve: A flatter maturity structure without a middle peak.
- Yield Curve Risk: Humped structures show why curve-shape risk matters beyond one average rate move.
- Key Rate Duration: Useful when the curve shape matters more than one aggregate duration estimate.
- Yield Spread: One way to summarize maturity differences inside a non-linear curve.
FAQs
Is a humped yield curve common?
No. It is less common than normal, flat, or inverted shapes and usually reflects more specific maturity-segment pressures.
Why do traders care about the hump in the middle?
Because that middle segment can drive relative-value trades and hedging decisions that a single average duration measure would miss.