| Strike | Net GEX | Type |
|---|---|---|
| 7770 | 58033.3K | Call Wall |
| 7765 | 35079.4K | Call Wall |
| 7700 | -30954.8K | Put Wall |
| 7760 | 30879.3K | Call Wall |
| 7755 | 28660.9K | Call Wall |
Gamma Exposure (GEX) levels for SPX 0DTE (zero days to expiration) options reveal where market makers must hedge their same-day options positions. These hedging flows create support, resistance, and magnet zones that move with intraday flow.
King Node (7755): the strike with the highest gamma concentration on Wednesday, October 21, 2026. Price is magnetically attracted to this level during the session.
Gamma Wall (7755): the highest call-side gamma strike above spot. Dealer hedging absorbs buying pressure here, acting as a ceiling.
Put Wall (7710): the highest put-side gamma strike below spot. Dealer hedging absorbs selling pressure here, acting as a floor.
StrikeGEX computes these levels from live options chain data every minute during market hours (9:30 AM to 4:00 PM ET). This page shows the latest snapshot for Wednesday, October 21, 2026.
This is a historical snapshot. The StrikeGEX heatmap updates every minute with real-time flow across SPX, SPY, QQQ, and 300+ symbols.
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