Free FIX GEX Heatmap - Comfort Systems USA Gamma Exposure
Use free FIX GEX Heatmap to compare modeled gamma exposure across strikes and expirations for Comfort Systems USA. Generate the grid, then review call wall, put wall, gamma flip and expiration structure alongside business context that includes project demand, backlog, labor availability, and material costs.
How to use the FIX GEX Heatmap
Confirm FIX
FIX is already entered. Keep it or search another ticker.
Choose the formula
Keep the default formula or select the available calculation view.
Generate the Heatmap
Create the grid, then compare exposure across strikes and expirations.
Visualize gamma exposure across strike prices and expirations. Green = positive (call-heavy), purple = negative (put-heavy).
GEX Workspace
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Max Pain Calculator
Options pain strike by expiration
Key levels
FIX GEX heatmap levels in detail
Data as of
Spot
$1,238
Call wall
$1,240
0.2% above spot
Put wall
$1,060
14.3% below spot
Gamma flip
$1,429
15.4% above spot
Net GEX
-$143
negative gamma
Since the previous session (Oct 29)
- Spot down 3.7% ($1,285 to $1,238)
- Call wall $1,420 to $1,240
- Put wall $1,400 to $1,060
- Net GEX -$101 to -$143
These are the levels across every expiration in the latest snapshot. The heatmap below breaks the same exposure out strike by strike and expiration by expiration, so you can see which expiry carries each level.
Reviewed by the QuantWheel research team. Modeled from listed FIX options data; not observed dealer inventory and not a forecast. Read how we compute FIX GEX heatmap levels.
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Understanding the FIX GEX heatmap
The FIX options chain represents Comfort Systems USA. Evaluate its open-interest distribution alongside business context that includes project demand, backlog, labor availability, and material costs. Use the heatmap to compare modeled exposure by strike and expiration instead of reading one cell without the surrounding grid.
For FIX, compare nearby expiration columns with later expirations before interpreting the call wall, put wall or gamma flip. Changes in open interest and included contracts can alter the modeled grid. The result describes selected options data and does not predict where Comfort Systems USA will trade.
FIX Heatmap methodology and limitations
The grid applies the selected formula to available FIX options data and organizes the modeled result by strike and expiration. The call wall, put wall and gamma flip summarize that model across the displayed data.
The heatmap does not observe market-maker positions, identify who owns a contract or predict the next FIX move. Use it as positioning context and compare the model with price, liquidity and your own risk plan.
Prefer a strike-level chart? Open the FIX GEX chart.
FIX GEX heatmap FAQ
What is a FIX GEX heatmap?
A FIX GEX heatmap is a grid of QuantWheel's modeled gamma exposure. Rows represent strikes, columns represent expirations, and color intensity represents the direction and relative size of the modeled exposure in each cell.
How do I read the FIX GEX heatmap?
Start with strikes near the FIX price, then compare the nearest expiration columns with later expirations. Read down one column to examine one expiration and across one row to see whether modeled exposure at a strike appears in several expirations.
What do the FIX GEX heatmap colors show?
Green cells show positive modeled net gamma and purple cells show negative modeled net gamma. Stronger color indicates a larger modeled value. The colors describe the calculation and are not guaranteed bullish, bearish, support, or resistance signals.
How are the FIX call wall, put wall and gamma flip modeled?
QuantWheel derives the displayed FIX levels from the selected formula and available options data. The call wall marks the largest positive modeled exposure, the put wall marks the largest negative modeled exposure, and the gamma flip estimates where aggregate modeled gamma changes sign.
How is the FIX GEX heatmap different from the FIX GEX chart?
The FIX heatmap separates modeled exposure by strike and expiration. The FIX GEX chart provides a strike-level profile in a chart view. Use the heatmap when the expiration breakdown matters and the chart when you want a simpler strike profile.
Is the FIX GEX heatmap free?
Yes. QuantWheel provides a limited number of free FIX GEX heatmap calculations. The tool shows the remaining free uses before you generate another heatmap.