GEX Lens | TRACE Walkthru #2

Why It Matters

Understanding real‑time gamma exposure lets traders spot emerging support/resistance zones, improving intraday positioning and risk management on the S&P 500.

Key Takeaways

• Strike plot shows real‑time options positioning by participant type.
• Toggle reveals gamma exposure (GEX) per strike, updating each minute.
• Zero‑DTE toggle isolates next‑expiration impact on S&P 500 market.
• Large gamma bars signal potential support or resistance levels.
• Full‑screen view and zoom let traders focus on key strikes.

Summary

The video walks users through the GEX Lens interface, emphasizing the left‑hand strike plot that visualizes options positioning for different market participants. By toggling between open interest, net OI, and the GEX lens, traders can see contract volumes or gamma exposure at each strike, with data refreshed every minute during market hours and every ten minutes pre‑market.

Key functionalities include a zero‑GTEEX toggle to isolate the influence of next‑expiration contracts on the S&P 500, and a zero‑DTE mode that narrows the view to same‑day expirations. The bar chart switches between raw OI figures and gamma‑by‑strike values, allowing users to pinpoint where large gamma concentrations are forming.

The presenter highlights practical tips: many traders monitor this pane continuously, using large gamma bars as informal support or resistance markers. The pane can be expanded to full screen via the square icon, and the zoom tool lets users drill into specific strike ranges for tighter analysis.

Overall, the GEX Lens equips traders with real‑time, granular insight into gamma dynamics, helping them anticipate price pivots and manage risk as the S&P 500 approaches market close.

Original Description

Starting with the left hand side of the main viewing pane, the strike plot reveals current options positioning for the selected market participant type. Scrolling over this data provides contextual tooltip info and recent historical values. When the bar chart is set to either OI or Net OI, its values display the number of outstanding contracts at each strike. When the bar chart is toggled to apply the GEX lens, it unveils gamma by strike for each reference price. The strike plot updates in one minute intervals during the trading day, with updates every ten minutes pre-market. Also, while this chart is set to reflect all options and their impact, there is a 0DTE GEX toggle that enables you to narrow in on the impact that next expiration options are having on the S&P 500. Some traders keep a close eye on this left pane throughout the day — it’s their go-to for tracking where gamma’s building. You can even pop it out full screen using the square icon in the top left. And if you want a tighter view on the key strikes, just use the strike plot zoom to dial it in.

Trader Tip:

Look for where the Large Gamma Bars on the left form as they can mark significant support and resistance levels. Switch over to 0DTE only to isolate how the S&P may shift into the close.

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