Explain ‘Delta’ in Simple Terms for an Option Contract.

Delta is the most important of the Greeks, representing the change in the option’s price for a one-unit change in the underlying asset’s price. A Delta of 0.50 means the option price will move 50 cents for every $1 move in the underlying stock.

It also represents the approximate probability that the option will expire In-The-Money.

What Is the Probability of an OTM Option Expiring ITM?
How Does the Relationship between Delta and the Probability of an Option Expiring In-the-Money Affect Trading Strategy?
What Is the Delta of an Option and How Is It Interpreted?
How Does the Probability of an Option Expiring ITM Relate to Its Time Value?
What Is the Relationship between Option Delta and the Probability of an Option Expiring In-the-Money?
What Is the Relationship between the Option’s Delta and Its Probability of Expiring In-the-Money?
How Does the ‘Delta’ of an Option Contract Relate to Its Sensitivity to the Underlying Crypto’s Price Change?
Define ‘Delta’ as a Greek Letter in Options Trading