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DURATION & RISK

Effective Duration

Measures rate sensitivity when cash flows can change with rates.

Formula

D_eff = (P_- - P_+)/(2P0Δy)

Variables: P_- price after yield fall; P_+ after rise; P0 initial price; Δy shift

What it means

Measures rate sensitivity when cash flows can change with rates.

Example

Reprice an option-embedded bond after symmetric curve shocks and divide the price difference by twice price times the yield shock.

How to interpret it

This concept should be read together with its market convention, measurement horizon and underlying instrument. BondStats presents it as an analytical reference rather than investment advice; instrument documentation and primary market rules remain authoritative.

BondStats reference content is independently written. Mathematical relationships, abbreviations and market conventions are presented for educational and analytical use.