Free MLM GEX Heatmap - Martin Marietta Gamma Exposure
Use free MLM GEX Heatmap to compare modeled gamma exposure across strikes and expirations for Martin Marietta. 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 MLM GEX Heatmap
Confirm MLM
MLM 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
Multi-ticker dashboard with alerts
GEX Intraday PlayTape
Intraday gamma movement & replay
Max Pain Calculator
Options pain strike by expiration
Key levels
MLM GEX heatmap levels in detail
Data as of
Spot
$502.45
Call wall
$540
7.5% above spot
Put wall
$490
2.5% below spot
Gamma flip
$467.03
7.0% below spot
Net GEX
$419
positive gamma
Since the previous session (Oct 26)
- Spot down 0.4% ($504.56 to $502.45)
- Call wall unchanged at $540
- Put wall unchanged at $490
- Net GEX $409 to $419
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 MLM options data; not observed dealer inventory and not a forecast. Read how we compute MLM GEX heatmap levels.
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Understanding the MLM GEX heatmap
The MLM options chain represents Martin Marietta. 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 MLM, 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 Martin Marietta will trade.
MLM Heatmap methodology and limitations
The grid applies the selected formula to available MLM 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 MLM 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 MLM GEX chart.
MLM GEX heatmap FAQ
What is a MLM GEX heatmap?
A MLM 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 MLM GEX heatmap?
Start with strikes near the MLM 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 MLM 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 MLM call wall, put wall and gamma flip modeled?
QuantWheel derives the displayed MLM 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 MLM GEX heatmap different from the MLM GEX chart?
The MLM heatmap separates modeled exposure by strike and expiration. The MLM 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 MLM GEX heatmap free?
Yes. QuantWheel provides a limited number of free MLM GEX heatmap calculations. The tool shows the remaining free uses before you generate another heatmap.