Latest dealer gamma exposure snapshot for QQQ and SPY: net GEX, zero-gamma flip level and gamma-weighted walls. Updated every 10 minutes during regular trading hours.
Positive gamma: dealers sell rallies and buy dips, damping moves. Negative gamma: dealers chase, amplifying moves.
Snapshots are taken about every 10 minutes from 09:35 to 15:50 ET on trading days, plus one after-hours snapshot. Figures are model estimates from open interest and implied volatility, not a trading recommendation.