Glossary Detail: GEX (Gamma Exposure)
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Backtesting GEX (Gamma Exposure) on High-Beta Names
Net gamma exposure across all strikes — predicts whether market-maker hedging will dampen (positive GEX) or amplify (negative GEX) price moves.
Further Details:
Gamma Exposure (GEX) aggregates the gamma of all open option contracts, weighted by open interest and dollar value, to determine the net gamma positioning of market makers. Positive GEX means market makers are long gamma; negative GEX means they're short gamma.