Free ERIE GEX - Live Erie Indemnity Gamma Exposure
Free ERIE GEX shows where modeled gamma exposure is concentrated in Erie Indemnity options. Change expirations to compare the call wall, put wall, gamma flip, and strike profile around underwriting, claims, pricing, and investment income.
How to use the ERIE GEX tool
Search ERIE
ERIE 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
ERIE GEX levels in detail
Data as of
Spot
$239.56
Call wall
$240
0.2% above spot
Put wall
$230
4.0% below spot
Gamma flip
No level
Net GEX
$4K
positive gamma
Largest gamma by strike
- $240 $2K
- $250 $495
- $230 $110
- $280 $53
- $290 $35
Since the previous session (Oct 14)
- Spot up 3.9% ($230.61 to $239.56)
- Call wall unchanged at $240
- Put wall unchanged at $230
- Net GEX $2K to $4K
Reviewed by the QuantWheel research team. Modeled from listed ERIE options data; not observed dealer inventory and not a forecast. Read how we compute ERIE GEX levels.
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Want to compare strikes across expirations? View the ERIE GEX heatmap.
Understanding ERIE gamma exposure
The business exposure behind ERIE includes insurance brokers. That connects the options chain with underwriting, claims, pricing, and investment income. Compare the positive and negative GEX bars by strike instead of reading one wall without the rest of the selected profile.
New to the concept? Start with our guides to gamma in options and the options Greeks.
ERIE GEX methodology and limitations
QuantWheel calculates ERIE 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.
ERIE GEX FAQ
What is ERIE GEX?
ERIE GEX estimates gamma exposure across listed ERIE options using option gamma and open interest. It helps you compare how modeled exposure is distributed by strike and expiration. ERIE GEX does not reveal actual dealer positions or predict where ERIE will trade.
How do I read the ERIE call wall and put wall?
QuantWheel labels the ERIE call wall as the strike with the largest positive modeled GEX and the ERIE put wall as the strike with the largest negative modeled GEX in your selected data. Compare both with the ERIE price and expiration choices. They are reference levels, not guaranteed support or resistance.
What is the ERIE gamma flip?
The ERIE gamma flip is the price where modeled net gamma crosses zero for the selected ERIE options data. Compare it with the current price and the shape of the strike chart. The ERIE gamma flip is a model output, not a trading signal.
Which expirations should I use for ERIE GEX?
Start with the nearest ERIE expiration to study short-dated positioning, then add later expirations to compare a broader part of the options chain. Each selection changes which ERIE contracts are included, so compare one expiration with a combined view before drawing conclusions.
Is the ERIE GEX calculator free?
Yes. You can run up to three free ERIE 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.