QUICK DEFINITION
Bull Flattener is a yield-curve move in which yields fall while longer maturities fall more than shorter maturities.
WHY IT MATTERS
Why Bull Flattener matters in bond markets
It can occur when investors expect weaker growth, lower inflation or future policy easing.
MARKET CONTEXT
How to think about it
Bond investors use bull flattener as part of a wider framework that links prices, yields, cash flows, liquidity and risk. The concept should therefore be read together with its related terms rather than as an isolated definition.
Is Bull Flattener important for fixed-income investors?
← Back to the Bond Market Glossary Yes. It can occur when investors expect weaker growth, lower inflation or future policy easing.