What is Dealer hedging?
What Is Dealer Hedging in Options Markets?
Updated 2026-07-21
Quick answer
Dealer hedging is market makers buying or selling the underlying to stay near delta-neutral as price and gamma change.
Also called: market maker hedging, gamma hedging.
Visual explainer
When customers buy options, dealers often take the other side and hedge in the underlying, linking flow, gamma, and price.
Full definition
When customers buy options, dealers often take the other side and hedge. Gamma sets how hard those hedges change with spot. That is why GEX regimes and OI walls can matter for short-term price. You never see every dealer book; you infer pressure from structure and flow.
How it shows up in TradingFlow
- Greeks & GEX tutorial
Explains positive/negative gamma regimes via dealer hedging intuition.
- Option Chain Analysis
Strike structure that shapes where hedging pressure may concentrate.
How to read it
- Use GEX regime for expected volatility character.
- Use walls for where hedging may densify.
- Use flow to see if customers are adding risk that dealers must re-hedge.
Who this is for
Traders who want a market-structure reason for why walls and GEX sometimes line up with price action.
Common mistakes
- Assuming all dealers are short customer options at all times.
- Overfitting intraday moves solely to hedging narratives.
Frequently asked questions
- Can retail traders see dealer inventory?
- No. Retail tools do not show dealer inventory. GEX and OI models are inferences. TradingFlow sticks to structure and tape you can verify.
Related terms
- Gamma exposure (GEX)GEX estimates aggregate dealer gamma from listed options. Positive gamma tends to dampen moves; negative gamma tends to amplify them. Option gamma is the building block; a gamma squeeze is a feedback loop when short-gamma hedges chase price higher.
- Call wallA call wall is the strike above spot with the densest call open interest or call-side gamma. Traders often treat it as resistance when dealers hedge.
- Put wallA put wall is the strike below spot with the densest put open interest or put-side gamma. Traders often treat it as support when dealers hedge.
- Delta exposure (DEX)DEX estimates share-equivalent directional weight of an options trade, roughly delta × size (with the usual multiplier).
More guides
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