Free CMI GEX - Live Cummins Gamma Exposure
Free CMI GEX maps modeled gamma exposure across Cummins options. Select expirations to compare the call wall, put wall, gamma flip, and strike-level exposure around project demand, backlog, labor availability, and material costs.
How to use the CMI GEX tool
Search CMI
CMI is already entered. Keep it or enter another ticker, then select Search.
Select expirations
Choose one or more expiration dates to include.
Generate GEX
Select Generate GEX to view the chart and key levels.
Run up to 3 free GEX calculations per day.
What is Gamma Exposure (GEX)?
Gamma Exposure represents the sensitivity of an option's delta to changes in the underlying price. Market makers hedge their gamma exposure, creating support/resistance at high GEX strikes.
Key Levels:
- Call Wall: Strike with highest positive GEX (resistance)
- Put Wall: Strike with the largest put GEX, shown as the deepest negative bar (support)
- Gamma Flip: Where total GEX changes from negative to positive
Positive GEX: Market makers sell into rallies, buy into dips (stabilizing).
Negative GEX: Market makers buy into rallies, sell into dips (amplifying moves).
Select a ticker and expiration date, then click Generate GEX to see the analysis
Key levels
CMI GEX levels in detail
Data as of
Spot
$504.14
Call wall
$530
5.1% above spot
Put wall
$510
1.2% above spot
Gamma flip
$552.73
9.6% above spot
Net GEX
-$754
negative gamma
Largest gamma by strike
- $510 -$437
- $530 -$222
- $500 -$156
- $490 -$102
- $590 $78
Since the previous session (Oct 29)
- Spot down 2.4% ($516.37 to $504.14)
- Call wall unchanged at $530
- Put wall $530 to $510
- Net GEX -$576 to -$754
Reviewed by the QuantWheel research team. Modeled from listed CMI options data; not observed dealer inventory and not a forecast. Read how we compute CMI GEX levels.
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Want to compare strikes across expirations? View the CMI GEX heatmap.
Understanding CMI gamma exposure
Cummins is classified in Construction Machinery and Heavy Transportation Equipment within Industrials. CMI options can respond to company earnings and changes in project demand, backlog, labor availability, and material costs. Use the GEX chart to see whether modeled positive and negative exposure is concentrated at a few strikes or spread across the selected chain.
New to the concept? Start with our guides to gamma in options and the options Greeks.
CMI GEX methodology and limitations
QuantWheel calculates CMI GEX from the selected expirations, available options data and the formula displayed in the calculator. The result summarizes modeled gamma exposure by strike.
GEX is a model output, not observed dealer inventory or a price forecast. Open interest does not identify who owns an option, and the displayed call wall, put wall and gamma flip can change when the inputs or selected expirations change.
CMI GEX FAQ
What is CMI GEX?
CMI GEX estimates gamma exposure across listed CMI options using option gamma and open interest. It helps you compare how modeled exposure is distributed by strike and expiration. CMI GEX does not reveal actual dealer positions or predict where CMI will trade.
How do I read the CMI call wall and put wall?
QuantWheel labels the CMI call wall as the strike with the largest positive modeled GEX and the CMI put wall as the strike with the largest negative modeled GEX in your selected data. Compare both with the CMI price and expiration choices. They are reference levels, not guaranteed support or resistance.
What is the CMI gamma flip?
The CMI gamma flip is the price where modeled net gamma crosses zero for the selected CMI options data. Compare it with the current price and the shape of the strike chart. The CMI gamma flip is a model output, not a trading signal.
Which expirations should I use for CMI GEX?
Start with the nearest CMI expiration to study short-dated positioning, then add later expirations to compare a broader part of the options chain. Each selection changes which CMI contracts are included, so compare one expiration with a combined view before drawing conclusions.
Is the CMI GEX calculator free?
Yes. You can run up to three free CMI GEX calculations per day on the public tool. After using those calculations, continue for free in the GEX demo. Check the current QuantWheel pricing page for plan access details.