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Free Real-Time GEX Calculator

Analyze gamma exposure levels across strike prices to identify key support and resistance zones.

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Compute GEX Levels for

What is Gamma Exposure (GEX)?

Gamma Exposure represents the sensitivity of an option's delta to changes in the underlying price. Market makers hedge their gamma exposure, creating support/resistance at high GEX strikes.

Key Levels:

  • Call Wall: Strike with highest positive GEX (resistance)
  • Put Wall: Strike with most negative GEX (support)
  • Gamma Flip: Where total GEX changes from negative to positive

Positive GEX: Market makers sell into rallies, buy into dips (stabilizing).

Negative GEX: Market makers buy into rallies, sell into dips (amplifying moves).

Select a ticker and expiration date, then click Generate GEX to see the analysis