CBOE
Cboe Global Markets IncPrices and gamma are point-in-time snapshots taken at the time shown. Dealer positioning is an assumption, not an observable: open interest shows that a contract exists, never which side a dealer holds. How dealer gamma is computed.
LIVE MARKET SNAPSHOT
| Call Wall | 280 |
| Put Wall | 270 |
| GEX Flip | 270 |
| Vol Trigger | 275 |
| Net GEX | -$2.2M |
Cached snapshot as of 2026-09-16 09:10 UTC, live streaming data in the terminal.
CBOE DEALER GAMMA BY STRIKE
Part of the SquawkFlow GEX Calculator: gamma by strike for any US stock. Compare with SPX GEX.
Net gamma exposure at each strike near CBOE's spot price, signed from the dealer perspective, calls positive, puts negative. Green strikes are where hedging tends to dampen moves; red is where it tends to amplify them. Dealer positioning is an assumption rather than an observable, so treat these as a map of where hedging pressure concentrates, not a forecast.
Unit: USD of dealer gamma per 1 percent move in spot. A window of the CBOE option chain, not the whole book: the 30 strikes nearest spot out of 71 seen, 1,168 contract rows spanning 15 expirations. Gamma is taken as the chain publishes it per contract; nothing here is re-priced. Crossed with the open interest carried on that chain.
New to these levels? Start with the call wall and put wall, or the zero gamma level where the sign of dealer hedging flips.
| Strike | Net GEX | Call GEX | Put GEX | Concentration |
|---|---|---|---|---|
| 225 | -$14.1K | $293 | -$14.4K | |
| 230 | -$178.0K | $114.4K | -$292.4K | |
| 235 | -$39.2K | $0 | -$39.2K | |
| 240 | -$399.6K | $120.2K | -$519.8K | |
| 245 | -$8.2K | $0 | -$8.2K | |
| 250 | $28.4K | $889.1K | -$860.7K | |
| 255 | -$29.0K | $0 | -$29.0K | |
| 260 | -$135.9K | $847.0K | -$982.9K | |
| 262.5 | $0 | $0 | $0 | |
| 265 | $9.4K | $118.9K | -$109.5K | |
| 267.5 | $0 | $0 | $0 | |
| 270SPOTPUT WALLGEX FLIP | -$2.1M | $955.4K | -$3.1M | |
| 272.5 | -$100.4K | $0 | -$100.4K | |
| 275 | $186.5K | $294.3K | -$107.8K | |
| 277.5 | $27.9K | $98.3K | -$70.4K | |
| 280CALL WALL | -$922.2K | $1.9M | -$2.8M | |
| 282.5 | $819.7K | $895.4K | -$75.7K | |
| 285 | -$125.9K | $94.0K | -$219.9K | |
| 287.5 | $68.7K | $105.0K | -$36.4K | |
| 290 | $2.3K | $980.2K | -$977.8K | |
| 292.5 | -$16.0K | $72.3K | -$88.3K | |
| 295 | -$159.4K | $100.1K | -$259.5K | |
| 297.5 | $20.5K | $37.6K | -$17.0K | |
| 300 | $535.6K | $1.1M | -$548.0K | |
| 302.5 | $79.1K | $79.1K | $0 | |
| 305 | -$17.8K | $25.3K | -$43.1K | |
| 307.5 | $26.9K | $49.8K | -$22.9K | |
| 310 | $245.5K | $605.6K | -$360.1K | |
| 312.5 | -$21.6K | $15.8K | -$37.4K | |
| 315 | $29.5K | $103.2K | -$73.7K |
These levels were captured September 16, 2026 from the open interest carried on the option chain. New levels post before each market open. Today's SPX gamma levels.
ABOUT CBOE
Cboe operates the largest U.S. options exchange and is the home of the VIX volatility index. The company also runs equities exchanges, EuroCboe, and digital asset platforms. Products include SPX options, VIX futures, and 0DTE (zero days to expiration) options.
WHY TRACK CBOE ON SQUAWKFLOW
CBOE literally profits from options trading volume, making it the ultimate meta-play on options activity. 0DTE options growth has been a transformative revenue driver. VIX product volumes during market stress events drive outsized earnings expectations.
CBOE DATA ON SQUAWKFLOW
Options Flow
CBOE options flow, unusual activity, and volume concentrations from the session chain
Latest Snapshot
Last CBOE price, change, volume, and the current dealer-gamma regime
GEX Dashboard
CBOE gamma exposure levels, call/put walls, and GEX flip
AI Narration
AI-powered analysis of CBOE market microstructure in real time
News Sentiment
CBOE news with AI sentiment scoring and impact analysis
Sector Context
Finance sector rotation and relative strength vs peers
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