Volatility Smile
Volatility Smile — Strike-dependent implied vol pattern reflecting crash and demand premia.
Definition
Volatility Smile refers to strike-dependent implied vol pattern reflecting crash and demand premia. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
Options and futures embed views on vol, skew, and path that cash markets only hint at. When strike-dependent implied vol pattern reflecting crash and demand premia shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what volatility smile is saying. If strike-dependent implied vol pattern reflecting crash and demand premia moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
State the expiry and Greek exposure; unmarked vol or pinning effects rewrite the thesis. Prefer a short written null hypothesis for Volatility Smile: what would falsify the current reading in the next window?