SPX gamma exposure levels, twelve years deep.
Every session since June 2014: where the Call Wall, the Put Wall and the Gamma Flip sat, and whether dealers were long or short gamma. Recomputed from end-of-day option chains with the same engine that draws today's map. Free to read; the live map is the Indicator.
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Spot against the walls, session by session
SPX close (light), Call Wall (green), Put Wall (red), Gamma Flip (gold). Levels computed from the day's chain are usable from the next session onward.
As published by the engine
The exact levels the GEX Levels engine published at the open of each past session (the Morning Map archive): walls, flip, max pain, focus levels and the battle zone. Today's map is for subscribers.
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Last twenty sessions, recomputed
End-of-day SPX chains, all expiries up to 60 days, in index points.
By year
Median corridor = Call Wall minus Put Wall as a share of spot; with all expiries up to 60 days the largest gamma sits near the money, so the corridor is tight by construction. Negative net gamma = share of sessions where dealers were net short gamma. Descriptive counts, not a strategy.
The history tells you how the walls behaved. The Indicator puts today's walls on your chart before the open, on TradingView and on native platforms, and keeps them current all session.
See the IndicatorBasis: SPX end-of-day option chains (index options, all expiries up to 60 days), priced with the GEX Levels model, in index points. The engine publishes its morning maps for NQ and ES; SPX is served live to subscribers. Everything here is descriptive market-structure context. Not investment advice, not a signal, no performance promise. Past structure does not predict future prices. Trading involves substantial risk of loss.