• Skip to main content
  • Skip to primary sidebar

SpotGamma™

S&P 500 Stock Market Gamma Trading Levels Based on Options Open Interest

  • About
  • Pricing
  • Academy
  • Resources
    • Tool Demos
    • Case Studies
    • Blog
    • Support Center
    • Free Daily Report
    • Free Trading Tools
      • Options Profit Calculator
      • SPX Gamma Exposure
      • Implied Earnings Moves
      • Volatility Ranking
    • Free Training
    • Report Card
  • Login

Sep 30 2021

SpotGamma Report for: 09/30/2021 AM

Daily Note:

More choppy action in futures overnight which hit overnight highs of 4389 (~4400 SPX equivalent) before dropping back to last nights close of 4365. Due to it being the quarter end OPEX, we expect volatile action similar to yesterday.  4400 is major resistance, with 4361 support.

There is a decent chunk of index/etf gamma expiring today and tomorrow, and the majority of that is put gamma. We theorize that these chunky puts (of which dealers are likely short) invoke a lot of short gamma hedging which leads to this jumpy/choppy action. As we remarked last night, there were 3x 30 handle swings in the SPX yesterday from ~4355 to 4385. New puts aren’t being added, so there aren’t deltas to add, just gamma adjustments. As puts expire, particularly with QQQ (more “put heavy”) that can generate a tail wind for equities as short deltas are unwound.

Without a macro shock it seems like this market is poised for a response to the upside (put expiry, high implied volatility deflating), and our signal for a push higher would be a recovery of the 4400 line. Beneath that 4400 line risk remains high due to the large put positions which can invoke a negative gamma downdraft.

We do make note of things being different this time. The default response of every dip since March of ’20 has been aggressive buying/volatility shorting. Its surprising that the market is unable to catch that bid, given that this current setup would seem like a “fat pitch” for those short dated vol sellers.

While we generally leave technical analysis to the professionals, the chart below highlights our point. Using the 50 day as a drawdown barometer, you can see how quickly the “buy the dip” response is. On this recent decline there was a tepid attempt, but that bid has receded. What happens next is unclear, but (as noted above) our view is not: we’re bullish above 4400 and bearish below.

Model Overview:

4400 resistance. High volatility and high risk as long as the SPX is <4400.

SpotGamma Proprietary LevelsLatest DataPreviousSPYNDXQQQ
Ref Price:4386435643414866359
SpotGamma Imp. 1 Day Move:2.65%,116.0 ptsRange: 4368.0 | 4404.0
SpotGamma Imp. 5 Day Move:2.39%4441 (Monday Ref Px)Range: 4335.0 | 4547.0
SpotGamma Gamma Index™:-1.15-0.10-0.37-0.01-0.20
Volatility Trigger™:4395441543815090370
SpotGamma Absolute Gamma Strike:4400440043515500360
Gamma Notional(MM):$-512$-620$-1,393$0$-961
Additional Key LevelsLatest DataPreviousSPYNDXQQQ
Zero Gamma Level:43974395000
Put Wall Support:4200420043514725350
Call Wall Strike:4500450045015375380
CP Gam Tilt:0.730.70.671.030.52
Delta Neutral Px:4235   
Net Delta(MM):$1,397,128$1,373,470$179,735$43,582$94,581
25D Risk Reversal-0.09-0.1-0.08-0.09-0.08
Key Support/Resistance Strikes:
SPX: [4500, 4450, 4400, 4350]
SPY: [440, 438, 435, 430]
QQQ: [370, 365, 360, 350]
NDX:[15500, 15375, 15000, 14000]
SPX Combo: [4309, 4361, 4261,4326,4374]
SPY Combo: [428.37, 433.58, 423.59,430.1]
NDX Combo: [14470.0, 14885.0, 14796.0, 14677.0, 14633.0]
Sub Login
Support
Follow @SpotGamma
Strike Charts
Historical Chart
Gamma Expiration Tool
2021-09-30_CBOE_gammagraph_AMSPX.png
2021-09-30_CBOE_gammagraph_AMSPY.png
2021-09-30_CBOE_gammagraph_AMQQQ.png
2021-09-30_CBOE_gammagraph_AMNDX.png
2021-09-30_CBOE_gammagraph_AMIWM.png
2021-09-30_CBOE_gammagraph_AMRUT.png
2021-09-30_CBOE_gammagraph_AMDIA.png
©TenTen Capital LLC d.b.a. SpotGamma
Please leave us a review: Click Here
See the FAQ for more information on reading the SpotGamma graph.
SpotGamma provides this information for research purposes only. It is not investment advice. SpotGamma is not qualified to provide investment advice, nor does it guarantee the accuracy of the information provided.
This email is intended solely for subscribers, please do not distribute the information without the express written consent of SpotGamma.com.

Share This Article

  • Share
  • Twitter
  • LinkedIn
  • Reddit
  • Facebook

Written by SpotGamma · Categorized: Market Analysis

Don’t have an account with SpotGamma?

Choose the plan you want today to view unique support and resistance levels, access Founder’s Notes and expert commentary, daily trading ranges, and entrance into our private Discord.

 

 

 

Primary Sidebar

Related Resources

  • Options Exchange Monitor — Week of August 15, 2026 (36 SEC notices, 2 CFTC, 0 EDGAR)

    Options Exchange Monitor — Week of August 15, 2026 (36 SEC notices, 2 CFTC, 0 EDGAR)

    August 17, 2026
  • GEX Levels for SPY, QQQ, ES and NQ: Using Index Gamma in Any Product

    GEX Levels for SPY, QQQ, ES and NQ: Using Index Gamma in Any Product

    August 17, 2026
  • How to Trade GEX Levels: A Practical Guide to Gamma-Based Trading

    How to Trade GEX Levels: A Practical Guide to Gamma-Based Trading

    August 17, 2026
  • Free GEX Levels, Charts, and Data: What’s Available and What It’s Actually Worth

    Free GEX Levels, Charts, and Data: What’s Available and What It’s Actually Worth

    August 17, 2026
  • Covered Calls After Assignment: What to Do When the Stock Drops Below Your Cost Basis

    Covered Calls After Assignment: What to Do When the Stock Drops Below Your Cost Basis

    August 17, 2026
  • youtube
  • x
  • Privacy Policy
  • Disclaimer
  • Terms & Conditions
  • Support Center
  • Media
  • Contact Us

©2026 TenTen Capital LLC DBA SpotGamma

All SpotGamma materials, information, and presentations are for educational purposes only and should not be considered specific investment advice nor recommendations. Futures, foreign currency and options trading contains substantial risk and is not for every investor. An investor could potentially lose all or more than the initial investment. Risk capital is money that can be lost without jeopardizing one's financial security or lifestyle. Only risk capital should be used for trading and only those with sufficient risk capital should consider trading. Past performance is not necessarily indicative of future results. Testimonials appearing on this website may not be representative of other clients or customers and is not a guarantee of future performance or success.

View Full Risk Disclosure