Define “Delta” in the Context of Options Trading.
Delta is one of the "Greeks" that measures the sensitivity of an option's price to a $1 change in the underlying asset's price. It is expressed as a number between 0 and 1 for calls, and -1 and 0 for puts.
A Delta of 0.5 means the option price will theoretically move $0.50 for every $1 move in the underlying asset.
