SHORT ANSWER
The core idea
Convexity captures the curvature in the relationship between bond prices and yields that a simple duration estimate misses.
THE MECHANISM
What is happening underneath
For larger yield changes, two bonds with similar duration can produce different price outcomes because their convexity differs.
MARKET INTERPRETATION
How investors should read it
Positive convexity is generally valuable because price gains from falling yields exceed comparable losses from an equal rise, all else equal.
BONDSTATS TAKEAWAY
The same market move can carry different information depending on which maturity, issuer and risk premium is changing. Read the question together with the underlying concepts rather than treating one price move as a universal signal.
RELATED CONCEPTS
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