Dealer Gamma (GEX) Tracker

Track dealer gamma positioning (GEX): the gamma flip that separates mean-reversion from amplification regimes, plus call/put walls and 0DTE levels for SPY, QQQ and SPX.

Gamma flip

The zero-gamma level that separates the positive-gamma (mean-reverting) regime from the negative-gamma (trend-amplifying) one.

Call & put walls

The strikes where open interest concentrates and price tends to pin or repel.

Net gamma by strike

Dollar-gamma profile around spot, with max-pain and the OI map.

0DTE / intraday levels

Front-expiry expected move and gamma-by-strike for SPY, QQQ and SPX.

What is the gamma flip?

The gamma flip (zero-gamma level) is the price where aggregate dealer gamma crosses from positive to negative. Above it, dealer hedging dampens moves; below it, hedging amplifies them.

Which products are covered?

Index-level dealer positioning for SPY, QQQ and SPX, plus per-ticker gamma where liquid.

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