Free BLK GEX Heatmap - BlackRock Gamma Exposure
Use free BLK GEX Heatmap to compare modeled gamma exposure across strikes and expirations for BlackRock. Generate the grid, then review call wall, put wall, gamma flip and expiration structure alongside business context that includes market levels, asset flows, fee rates, and investment activity.
How to use the BLK GEX Heatmap
Confirm BLK
BLK 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
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Max Pain Calculator
Options pain strike by expiration
Key levels
BLK GEX heatmap levels in detail
Data as of
Spot
$1,066
Call wall
$1,100
3.2% above spot
Put wall
$1,000
6.2% below spot
Gamma flip
$1,063
0.3% below spot
Net GEX
$1K
positive gamma
Since the previous session (Sep 29)
- Spot down 0.0% ($1,066 to $1,066)
- Call wall unchanged at $1,100
- Put wall unchanged at $1,000
- Net GEX $587 to $1K
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 BLK options data; not observed dealer inventory and not a forecast. Read how we compute BLK GEX heatmap levels.
Build your BLK GEX workspace
Add BLK Heatmap, Max Pain and other GEX views to a custom multi-ticker workspace.
Understanding the BLK GEX heatmap
The BLK options chain represents BlackRock. Evaluate its open-interest distribution alongside business context that includes market levels, asset flows, fee rates, and investment activity. Use the heatmap to compare modeled exposure by strike and expiration instead of reading one cell without the surrounding grid.
For BLK, 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 BlackRock will trade.
BLK Heatmap methodology and limitations
The grid applies the selected formula to available BLK 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 BLK move. Use it as positioning context and compare the model with price, liquidity and your own risk plan.
BLK GEX heatmap FAQ
What is a BLK GEX heatmap?
A BLK 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 BLK GEX heatmap?
Start with strikes near the BLK 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 BLK 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 BLK call wall, put wall and gamma flip modeled?
QuantWheel derives the displayed BLK 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 BLK GEX heatmap different from the BLK GEX chart?
The BLK heatmap separates modeled exposure by strike and expiration. The BLK 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 BLK GEX heatmap free?
Yes. QuantWheel provides a limited number of free BLK GEX heatmap calculations. The tool shows the remaining free uses before you generate another heatmap.