Gamma Exposure (GEX)

When you buy an option, the market maker (dealer) who sells it to you must hedge. The amount they need to hedge changes based on the stock price — this is gamma. When dealers are net long gamma, they buy dips and sell rallies (stabilizing). When net short gamma, they amplify moves (destabilizing).

• Positive GEX — Dealers are net long gamma. They hedge by buying dips/selling rallies. Price tends to be "pinned" and moves are suppressed.
• Negative GEX — Dealers are net short gamma. They hedge in the same direction as price movement. Volatility amplifies.
• Gamma Flip — The price level where GEX switches from positive to negative. Important transition point.
• GEX Walls — Strike prices with massive gamma that act as strong support/resistance.

iGotFomo tracks net GEX, gamma flip levels, and top GEX strikes for all major stocks using data from multiple options sources.