SPX gamma exposure (GEX) — dealer gamma, vanna, charm and the zero-gamma flip, live from the options tape
Watch today, live
Every historical session is free, forever. A subscription adds today — the dealer’s book rebuilt every second as it trades.
- Measured dealer positioning — signed from the tape, not the call/put convention
- Flip, walls and the gamma ladder, rebuilt every second
- DEX · VEX · charm · vanna · 25Δ skew, per strike
- The full session archive, free — no account needed
- 5 LAB credits monthly — turn what you see on the tape into a backtested rule
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Orders
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Rebuilt from the public tape. Not a trading signal and not investment advice.
Geo
Your rule.
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