What Is the Relationship between Delta and the Other Greek, Gamma?

Gamma is the rate of change of Delta with respect to the underlying asset's price. It measures how fast Delta will change as the underlying price moves.

High Gamma means Delta is highly sensitive to price changes, requiring more frequent adjustments in a Delta-hedging strategy. ATM options typically have the highest Gamma, which causes their Delta to move rapidly toward 0 or 1 as they move ITM or OTM.