Invest on your own
Build your own portfolio from a variety of products
Glossary
Delta
Definition
An estimate of how much an option’s price will move given a change (up or down) in the price of the underlying asset. Delta ranges from 0 to 1 for call options and from -1 to 0 for put options.
What is delta?
In finance, delta refers to the ratio that compares the change in the price of an asset, usually a derivative, to the corresponding change in the price of its underlying asset. It's a key concept in options trading, representing how much an option's price is expected to move per USD 1 change in the price of the underlying security.