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OPTIONS · GAMMA

Gamma Exposure in Crypto: Model Assumptions Before Market Conclusions

Gamma exposure charts look precise. Under the surface they rest on an assumption about who owns which options.

By ChartsPod Editorial Team · Reviewed by ChartsPod Research
Published · Updated · 5 min read

Short answer

Gamma exposure (GEX) estimates how much dealers must buy or sell the underlying as price moves, computed as open interest × gamma per strike, signed by an assumption about whether dealers are long or short each option. The common assumption (dealers short calls, long puts, or similar conventions) is often wrong for crypto, where positioning is mixed. Before drawing conclusions such as 'positive gamma will pin price', state the assumption, the venue, the expiries included and the timestamp. ChartsPod's options tools include exposure and zero-gamma views; read them with these caveats.

How GEX is built

Gamma exposure estimateGamma exposure estimate. Steps: 1. OI by strike — Calls and puts; 2. Gamma per option — From model + IV; 3. Sign by assumption — Dealer long or short; 4. Sum by strike — Exposure profile; 5. Zero-gamma — Where sign flips1OI by strikeCalls and puts2Gamma per optionFrom model + IV3Sign byassumptionDealer long orshort4Sum by strikeExposure profile5Zero-gammaWhere sign flips
Step 3 is an assumption, not data. Original ChartsPod editorial graphic.

Assumptions that matter

AssumptionIf wrong
Dealers short calls / long putsSign of exposure reverses
All OI held by customersIgnores dealer-to-dealer and hedged spreads
Single venue covers the marketMisses OTC and other venues
IV modelGamma values shift
Readings under two assumptionsReadings under two assumptions. Left, Assumption A: Positive GEX above price; Dealers sell rallies; Expect damping. Right, Assumption B: Negative GEX above price; Dealers buy rallies; Expect acceleration.ASSUMPTION APositive GEX above priceDealers sell ralliesExpect dampingASSUMPTION BNegative GEX above priceDealers buy ralliesExpect acceleration
Same OI, opposite conclusions. Original ChartsPod editorial graphic.

Using GEX responsibly

Before citing a gamma levelBefore citing a gamma level: Positioning assumption stated; Venue(s) and expiries; Snapshot time; Underlying price at snapshot; Check against actual price behaviour.BEFORE CITING A GAMMA LEVELPositioning assumption statedVenue(s) and expiriesSnapshot timeUnderlying price at snapshotCheck against actual price behaviour
Without these, a gamma level is unverifiable. Original ChartsPod editorial graphic.

Related: ChartsPod Options Dashboard: Reference Venue and Aggregated Exposure, Bitcoin Options Max Pain: Calculation and Why It Is Not a Target.

Testing a gamma claim

If a GEX chart says positive gamma above price should dampen moves, test it: over many days, compare realised intraday ranges when price sat in the 'positive' zone versus the 'negative' zone under the same assumption. If there is no difference on your market, the assumption or the data does not fit well enough to rely on.

Record the snapshot time with each test, since exposure changes as OI and price move.

Conclusion

Treat gamma exposure as model output whose sign depends on positioning assumptions; state them and test against price behaviour.

Open the options exposure view and note venue and expiries.

Open ChartsPod options

Check Gamma Exposure in Crypto against a live market before relying on it.

Try it in ChartsPod

Questions readers ask

What is gamma exposure?

An estimate of dealer hedging needs from OI and gamma, signed by positioning assumptions.

Is zero gamma a support level?

It is where estimated exposure changes sign; not a guaranteed level.

Why do GEX charts differ between providers?

Different assumptions, venues, expiries and IV models.

Sources and methodology

Derivatives definitions come from Binance's USD-M market data documentation, Hyperliquid's funding documentation, Bybit's liquidation rules and Deribit Insights, as read on 17 October 2026. ChartsPod features were checked on its public pages. Examples use illustrative numbers.

  1. Deribit Insights: Genesis Volatility options data guide — skew, smile, term structure.
  2. ChartsPod: product overview, pricing and FAQ — free terminal, venues, modules, no order placement; checked 17 Oct 2026.

This article explains research tools and workflows. It is not financial advice, does not recommend buying or selling any asset and does not predict prices. Crypto derivatives carry a risk of rapid and total loss of margin.

CHARTSPOD EDITORIAL EDITION · RESEARCH AND EDUCATION ONLY · NOT FINANCIAL ADVICE.