When someone asks what is the delta?

In finance, "delta" refers to the rate of change of an option's price relative to the change in the price of the underlying asset. It indicates how much the price of an option is expected to move for a $1 change in the underlying asset's price. Delta values range from 0 to 1 for call options and 0 to -1 for put options, reflecting the sensitivity of the option's price to market movements. Essentially, it helps traders assess the risk and potential reward of their options positions.