Free SPG GEX - Live Simon Property Group Gamma Exposure
Free SPG GEX shows where modeled gamma exposure is concentrated in Simon Property Group options. Change expirations to compare the call wall, put wall, gamma flip, and strike profile around occupancy, property demand, financing costs, and interest rates.
How to use the SPG GEX tool
Search SPG
SPG 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
SPG GEX levels in detail
Data as of
Spot
$198.70
Call wall
$210
5.7% above spot
Put wall
$200
0.7% above spot
Gamma flip
$203.76
2.5% above spot
Net GEX
-$7K
negative gamma
Largest gamma by strike
- $200 -$7K
- $210 $2K
- $190 -$2K
- $195 -$1K
- $220 $406
Since the previous session (Oct 6)
- Spot down 1.5% ($201.74 to $198.70)
- Call wall unchanged at $210
- Put wall unchanged at $200
- Net GEX -$9K to -$7K
Reviewed by the QuantWheel research team. Modeled from listed SPG options data; not observed dealer inventory and not a forecast. Read how we compute SPG GEX levels.
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Understanding SPG gamma exposure
SPG provides options exposure to Simon Property Group, which operates in retail reits. Earnings and shifts in occupancy, property demand, financing costs, and interest rates can change option pricing and open interest. The GEX chart shows how modeled exposure is distributed for the contracts and expirations you include.
The SPG call wall, put wall, and gamma flip depend on the contracts included in the calculation. Recompute the chart after changing expirations and compare the distribution around the current price. The output is positioning context rather than a forecast.
New to the concept? Start with our guides to gamma in options and the options Greeks.
SPG GEX methodology and limitations
QuantWheel calculates SPG 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.
SPG GEX FAQ
What is SPG GEX?
SPG GEX estimates gamma exposure across listed SPG options using option gamma and open interest. It helps you compare how modeled exposure is distributed by strike and expiration. SPG GEX does not reveal actual dealer positions or predict where SPG will trade.
How do I read the SPG call wall and put wall?
QuantWheel labels the SPG call wall as the strike with the largest positive modeled GEX and the SPG put wall as the strike with the largest negative modeled GEX in your selected data. Compare both with the SPG price and expiration choices. They are reference levels, not guaranteed support or resistance.
What is the SPG gamma flip?
The SPG gamma flip is the price where modeled net gamma crosses zero for the selected SPG options data. Compare it with the current price and the shape of the strike chart. The SPG gamma flip is a model output, not a trading signal.
Which expirations should I use for SPG GEX?
Start with the nearest SPG expiration to study short-dated positioning, then add later expirations to compare a broader part of the options chain. Each selection changes which SPG contracts are included, so compare one expiration with a combined view before drawing conclusions.
Is the SPG GEX calculator free?
Yes. You can run up to three free SPG 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.