Local Volatility Model
Local Volatility Model — Strike-dependent diffusion used to fit vanilla surfaces consistently.
Definition
Local Volatility Model refers to strike-dependent diffusion used to fit vanilla surfaces consistently. 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 diffusion used to fit vanilla surfaces consistently 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 local volatility model is saying. If strike-dependent diffusion used to fit vanilla surfaces consistently 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 Local Volatility Model: what would falsify the current reading in the next window?
Ask the macro AI about this object
Opens ZChat with Codex, RAG, and chart context enabled. Connected to the shared Ztrader memory layer.