15 minute updates
Not real-time data
Free SPX GEX Heatmap
SPX
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Updated every 15 minutes
SPX gamma exposure, gamma walls, gamma flip, and options-based support and resistance zones updated automatically from 7:00 AM to 4:00 PM ET on U.S. trading days.
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Net Put Delta
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Current option snapshot
Net Call Delta
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Current option snapshot
Gamma Regime
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Positive / negative structure
Gamma Flip
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Informational area
Market Status
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New York / ET
GEX Updated
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Option chain / GEX snapshot
OI Strike Map - Gamma Wall & Key Levels
SPX GEX Heatmap
X-axis shows expiration dates. Y-axis shows strikes from high to low.
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Positive GEX
Neutral
Negative GEX
Spot / extreme level
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What Is GEX in Options?
A beginner-friendly explanation of gamma exposure and why traders track it around SPX strikes.
Gamma Exposure, or GEX, estimates how dealer hedging sensitivity may cluster around option strikes. Positive GEX areas may be associated with more stable hedging conditions, while negative GEX areas may indicate less stable conditions. Read the full guide.
How to Read a GEX Heatmap
Learn how expiration, strike, positive GEX, negative GEX, and spot price interact on the dashboard.
Each column is an expiration date and each row is a strike. Green cells show positive GEX, red cells show negative GEX, and darker cells are neutral or weak. Read the full guide.
SPX 0DTE Gamma Levels
Options-based market structure levels during the trading day.
SPX 0DTE gamma levels can change quickly because same-day options decay and dealer hedging flows may shift as price moves. Read the full guide.