Dealer Gamma Exposure
Dealer Gamma Exposure — Aggregate market-maker gamma that can damp or amplify spot.
Definition
Dealer Gamma Exposure refers to aggregate market-maker gamma that can damp or amplify spot. 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 aggregate market-maker gamma that can damp or amplify spot 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 dealer gamma exposure is saying. If aggregate market-maker gamma that can damp or amplify spot 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 Dealer Gamma Exposure: what would falsify the current reading in the next window?
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