Free MPC GEX - Live Marathon Petroleum Gamma Exposure
Use free MPC GEX to compare modeled gamma exposure by strike for Marathon Petroleum. Choose one or more expirations, then review the call wall, put wall, gamma flip, and exposure in the context of oil and gas prices, production, capital spending, and energy demand.
How to use the MPC GEX tool
Search MPC
MPC 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. Need more?
Continue for free in the GEX demoWhat 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
MPC GEX levels in detail
Data as of
Spot
$393.25
Call wall
$410
4.3% above spot
Put wall
$380
3.4% below spot
Gamma flip
$428.09
8.9% above spot
Net GEX
-$3K
negative gamma
Largest gamma by strike
- $380 -$955
- $340 -$918
- $390 -$676
- $370 -$554
- $440 $460
Since the previous session (Sep 24)
- Spot up 0.8% ($389.98 to $393.25)
- Call wall unchanged at $410
- Put wall unchanged at $380
- Net GEX -$3K to -$3K
Reviewed by the QuantWheel research team. Modeled from listed MPC options data; not observed dealer inventory and not a forecast. Read how we compute MPC GEX levels.
Build your MPC GEX workspace
Add MPC Heatmap, Max Pain and other GEX views to a custom multi-ticker workspace.
Understanding MPC gamma exposure
Marathon Petroleum operates in oil and gas refining and marketing, so its options may reflect earnings alongside changes in oil and gas prices, production, capital spending, and energy demand. Review the full MPC strike profile, including both positive and negative modeled exposure, before interpreting the displayed walls.
New to the concept? Start with our guides to gamma in options and the options Greeks.
MPC GEX methodology and limitations
QuantWheel calculates MPC 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.
MPC GEX FAQ
What is MPC GEX?
MPC GEX estimates gamma exposure across listed MPC options using option gamma and open interest. It helps you compare how modeled exposure is distributed by strike and expiration. MPC GEX does not reveal actual dealer positions or predict where MPC will trade.
How do I read the MPC call wall and put wall?
QuantWheel labels the MPC call wall as the strike with the largest positive modeled GEX and the MPC put wall as the strike with the largest negative modeled GEX in your selected data. Compare both with the MPC price and expiration choices. They are reference levels, not guaranteed support or resistance.
What is the MPC gamma flip?
The MPC gamma flip is the price where modeled net gamma crosses zero for the selected MPC options data. Compare it with the current price and the shape of the strike chart. The MPC gamma flip is a model output, not a trading signal.
Which expirations should I use for MPC GEX?
Start with the nearest MPC expiration to study short-dated positioning, then add later expirations to compare a broader part of the options chain. Each selection changes which MPC contracts are included, so compare one expiration with a combined view before drawing conclusions.
Is the MPC GEX calculator free?
Yes. You can run up to three free MPC 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.