Duration is a practical measure of interest-rate sensitivity. The higher the duration, the more the bond price usually moves when yields rise or fall.
Why duration matters
Many investors focus only on the headline yield. That misses the tradeoff. A higher yield can come with much higher rate sensitivity, especially when moving from short Treasuries to the long end.
A fast mental model
- Short duration: lower price swings, lower sensitivity to rate surprises
- Long duration: bigger price swings, higher sensitivity to inflation and policy expectations
Use the curve to frame duration risk
Before taking more duration exposure, compare the extra yield you earn:
- 2Y versus 5Y
- 5Y versus 10Y
- 10Y versus 30Y
If the curve is flat, you may not be getting paid much for taking longer duration risk. That is exactly the kind of pattern a Treasury dashboard makes easier to evaluate quickly.