Tutorial 9 of 53•1. Getting Started•4 min

GEX Heatmap (MAXX)

Use Maxx GEX Heatmap for a strike × expiry dealer GEX structure map — walls, zone, net GEX by expiry — on /gex-heatmap or Stock Details → GEX Heatmap.

What it is

GEX Heatmap is the Maxx dealer-positioning workspace: a strike × expiration GEX matrix, an aggregate-by-strike chart, key levels (price, gamma flip, call wall, put wall, zone/regime), and net GEX by expiry with a DTE range slider. It is powered by Unusual Whales strike × expiry data.

  • Full page: /gex-heatmap
  • Stock Details: GEX Heatmap tab (/stock/{symbol}/gex-heatmap)
  • Maxx users see GEX Heatmap instead of the free Strike GEX surface; opening /gex redirects to the Maxx heatmap.

Who can use it

Requires Maxx. Other plans see a blurred preview and upgrade path; guests sign in first. Free Strike GEX remains available to non-Maxx users on /gex and Stock Details → Strike GEX.

How to use it

  1. Open /gex-heatmap (More → GEX Heatmap) or a ticker’s Stock Details → GEX Heatmap.
  2. Search any optionable ticker. Last symbol is remembered on the full page.
  3. Read Key levels: price, gamma flip, call wall, put wall, and zone.
  4. Use the DTE slider to show/hide heatmap columns by days to expiration; switch Net / Call / Put for cell values.
  5. Review the aggregate strike chart, then use Net GEX by expiry to see which expiration contributes the most exposure.
  6. Optionally enable Auto-update to fetch the latest streamed values every 5 seconds (pauses when the tab is hidden).
  7. Use the labeled spot, gamma flip, call wall, and put wall rows on the grid to compare each level with stacked gamma.

Tips

  • The grid is a structure map (where gamma sits by strike and expiry), not an intraday minute tape.
  • Strike GEX is educational open-interest math for non-Maxx users; Maxx Heatmap is UW dealer-positioning by strike × expiry.
  • Pair with Option Flow or Dark Pool when you care about aggression vs positioning.

Try It on the Screener

Frequently Asked Questions

Is GEX Heatmap the same as free Strike GEX?

No. Free Strike GEX is an open-interest GEX estimate for non-Maxx users. GEX Heatmap is the Maxx strike × expiry dealer GEX workspace with aggregate strike exposure, gamma flip, walls, spot, and net GEX by expiry.

Why is my ticker empty?

The heatmap needs a latest strike × expiry snapshot from live ingest. Illiquid names or a cold session can show empty until Unusual Whales has published rows for that symbol.

Do I need Maxx for Stock Details GEX?

Maxx users get the GEX Heatmap tab. Non-Maxx users retain the free Strike GEX tab; Maxx users no longer see that duplicate surface.

What does Auto-update do on GEX Heatmap?

On Maxx GEX Heatmap, Auto-update fetches the latest streamed dealer GEX about every 5 seconds and pauses when the tab is hidden. This is separate from Options Heatmap Auto-update (Ultra/Maxx premiums grid).

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