SpotGamma Abs. Gamma Strike is the strike with the largest total gamma position for the underlying stock.
Why does the SpotGamma Abs. Gamma Strike matter?
A large amount of the options market makers hedging position may be tied to this level, and therefore it may function as a “magnet” and large liquidity area.
How to use SpotGamma Abs. Gamma Strike
This strike is a support/resistance level.