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Duration is a key concept in bond investing that measures the sensitivity of a bond’s price to changes in interest rates. It helps investors assess the risk associated with interest rate fluctuations and manage their bond portfolios accordingly.
What Is Duration?
Duration is expressed in years and indicates the approximate percentage change in a bond’s price for a 1% change in interest rates. A higher duration means the bond’s price is more sensitive to interest rate movements.
Types of Duration
There are different types of duration used by investors:
- Macaulay Duration: The weighted average time until cash flows are received.
- Modified Duration: Measures price sensitivity to interest rate changes, derived from Macaulay Duration.
- Effective Duration: Used for bonds with embedded options, accounting for possible changes in cash flows.
Importance of Duration in Bond Investing
Understanding duration helps investors manage interest rate risk. Bonds with longer durations tend to experience larger price swings when rates change, while shorter durations are less affected.
Investors use duration to match their investment horizon with bond holdings, reducing potential losses during periods of rising interest rates.