What is gamma exposure (GEX)?
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Gamma exposure (GEX) measures how much market makers' collective delta changes for every 1% move in the underlying. High gamma at a price level means dealers must buy or sell large amounts of the underlying to stay hedged — creating predictable support, resistance, and volatility compression or expansion at that level.
Do I need to trade options to benefit from GEX data?
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No. Market maker hedging flows directly move ES, NQ, and SPY. Understanding them gives futures and equity traders structural price levels that charts alone can't show.
What is the zero gamma level and why does it matter?
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The zero gamma level is where dealer gamma flips from positive to negative. Above it: dealers stabilize — buying dips, selling rallies. Below it: dealers amplify — selling declines, buying rallies. This level determines range day vs. trending day.
How do futures traders specifically use gamma levels?
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(1) Gamma walls → fade levels in positive gamma. (2) Gamma flip → breakout trigger. (3) Negative gamma zones → momentum over mean-reversion. (4) Pre-session: positive or negative gamma sets the day's bias.
What is a gamma squeeze?
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Aggressive call buying forces market makers to buy the underlying. As price rises, more OTM calls come in range — requiring even more buying. GEX data shows the buildup before it becomes obvious in price.
How often does GEX Metrix update its data?
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Data updates every 15 minutes during market hours. Historical snapshots let you compare current positioning against prior sessions.
