AGAIG TRACKING SPX, NDX, SPY, QQQ GAMMA LIVE ON EXCEL using TOS
The following links when downloaded as a new post on EXCEL (not in a web browser) while Thinkorswim is running and logged into on your computer in order to pull data into your local sheet.
The following links when downloaded as a new post on EXCEL (not in a web browser) while Thinkorswim is running and logged into on your computer in order to pull data into your local sheet.
NOTE: THE DATES ON THE EXCEL SHEETS MUST BE THE CURRENT DATE OR A FUTURE DATE. These sheets provide a lot of information for those who have, and use Excel. I have these downloaded and save to my desktop so that I can double-click to open. I usually minimize them unless I want to view gamma exposure during the day. I’m also interested in gamma exposure during the last half hour of the trading day to see where most of the action is taking place.
read more: https://usethinkscript.com/threads/agaig-understanding-gamma-on-excel-sheets.22774/
Each file shows where options traders have concentrated their positions, and how the dealers on the other side of those trades are likely to hedge. Those hedging flows can pull price toward certain strikes or push it away, especially in the last hour of 0DTE trading.
How it works. For every strike near the current price, the sheet pulls live gamma, open interest, and today's volume from thinkorswim. Gamma measures how fast an option's delta changes as price moves. The sheet multiplies it by the number of contracts to get gamma exposure (GEX): roughly how many dollars of stock dealers must buy or sell for each 1% move. Big GEX at a strike means big hedging flows around that price.
The key readings:
- Top gamma strike: the price level with the most hedging activity. It often acts as a magnet into the close. The OI version reflects overnight positioning; the OI + volume version includes today's trading and is usually the better read for 0DTE.
- Call wall: the strike with the most call gamma. It often acts as resistance, where rallies tend to stall.
- Put wall: the strike with the most put gamma. It often acts as support, though it can give way in a negative regime.
- Regime: the single most important cell. Positive means dealer hedging dampens moves, pins are more reliable, and trading tends to be calmer. Negative means hedging amplifies moves, pins are shakier, and breaks of key levels can run.
Morning: open thinkorswim, then the four files. Update each Expiry cell and confirm each one says LIVE.
Midday: note the regime and the key levels. Positive regime: expect range trading between the walls. Negative: expect bigger swings.
Last 1–2 hours: this is when 0DTE gamma peaks and the readings matter most. Watch whether price holds or breaks the top strike.
Cross-check: SPX and SPY should agree (SPY is about one-tenth of SPX), and so should NDX and QQQ. Levels that line up across both are the strongest.
Keep in mind:
- The sheet assumes dealers hold the other side of customer trades. That's the standard convention, but nobody can see actual dealer positions.
- Volume doesn't show whether trades were buys or sells, or opening or closing trades.
- News or large orders can override everything.
- SPY and QQQ options can be exercised early and settle in shares, so close those spreads before 4:00 PM.
***NOTE***Update the EXCEL SHEETS each morning after opening Thinkorswim in this manner 260927 for tomorrow’s sheets since today is Sunday and the market is not open. The sheet I am showing as an example is Friday’s 260925 SPX 0DTE GAMMA EXPOSURE
Feedback is always appreciated.
Excel SHEET Look:
Excel Sheet Links:
see if this works for you to get the NDX?Thank you so much for attaching the files again, but one more small thing it looks you have attached twice SPX and NDX file attachment is missing. pls attach it when you get a chance
Attachments
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SPY_Gamma_RTD.xlsx27.7 KB · Views: 61
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SPX_Gamma_RTD (2).xlsx13.4 KB · Views: 53
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SPX_Gamma_RTD (1).xlsx13.4 KB · Views: 52
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QQQ_Gamma_RTD (1).xlsx13.5 KB · Views: 47
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QQQ_Gamma_RTD (1).xlsx13.5 KB · Views: 49
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SPX_Gamma_RTD (1).xlsx13.4 KB · Views: 49
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SPX_Gamma_RTD (2).xlsx13.4 KB · Views: 48
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SPY_Gamma_RTD.xlsx27.7 KB · Views: 65
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NDX_Gamma_RTD.xlsx13.5 KB · Views: 53
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