Free TSM GEX - Live TSMC Gamma Exposure
Free TSM GEX maps TSMC gamma exposure by strike. Choose expirations around foundry demand, semiconductor production or company events, then generate the chart to compare net GEX, call wall, put wall and gamma flip.
How to use the TSM GEX tool
Search TSM
TSM 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
TSM GEX levels in detail
Data as of
Spot
$437.32
Call wall
$430
1.7% below spot
Put wall
$415
5.1% below spot
Gamma flip
$417.08
4.6% below spot
Net GEX
$64K
positive gamma
Largest gamma by strike
- $460 $17K
- $450 $15K
- $445 $11K
- $430 $8K
- $440 $5K
Since the previous session (Oct 26)
- Spot up 2.9% ($425.15 to $437.32)
- Call wall unchanged at $430
- Put wall unchanged at $415
- Net GEX $14K to $64K
Reviewed by the QuantWheel research team. Modeled from listed TSM options data; not observed dealer inventory and not a forecast. Read how we compute TSM GEX levels.
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Want to compare strikes across expirations? View the TSM GEX heatmap.
Understanding TSM gamma exposure
TSM shares trade in Taipei overnight, so the US-listed stock often opens with a gap. Compare the price at the open with the gamma flip, the price where modeled net exposure changes sign. Open interest is more institutional than in the US chip designers - fewer weekly lottery tickets, more monthly hedging of AI supply-chain exposure - so its call wall and put wall usually change slowly. Because TSM manufactures chips for NVDA, AMD and AAPL, its GEX is less company-specific than most semiconductor stocks and reflects positioning across the sector.
New to the concept? Start with our guides to gamma in options and the options Greeks.
TSM GEX methodology and limitations
QuantWheel calculates TSM 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.
TSM GEX FAQ
What is TSM GEX?
TSM GEX estimates gamma exposure across listed TSM options using option gamma and open interest. It helps you compare how modeled exposure is distributed by strike and expiration. TSM GEX does not reveal actual dealer positions or predict where TSM will trade.
How do I read the TSM call wall and put wall?
QuantWheel labels the TSM call wall as the strike with the largest positive modeled GEX and the TSM put wall as the strike with the largest negative modeled GEX in your selected data. Compare both with the TSM price and expiration choices. They are reference levels, not guaranteed support or resistance.
What is the TSM gamma flip?
The TSM gamma flip is the price where modeled net gamma crosses zero for the selected TSM options data. Compare it with the current price and the shape of the strike chart. The TSM gamma flip is a model output, not a trading signal.
Which expirations should I use for TSM GEX?
Start with the nearest TSM expiration to study short-dated positioning, then add later expirations to compare a broader part of the options chain. Each selection changes which TSM contracts are included, so compare one expiration with a combined view before drawing conclusions.
Is the TSM GEX calculator free?
Yes. You can run up to three free TSM 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.