# Manuals/calci/OPTIONSECURITY

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**OPTIONSECURITY (UnderlyingPrice,ExercisePrice,Time,Interest,Volatility,Dividend)**

where

- is the spot price
- is the price at which an underlying security can be purchased or sold.

## Description

- This function shows the value of the Underlying Option security.
- In , is the The spot price of the underlying asset of a derivative.
- is the price at which an underlying security can be purchased or sold.
- An underlying option security is the financial instrument on which a derivative's value is based – it provides the price that is used to determine the value of the derivative.
- An option is classified as a derivative because its value is derived from the underlying security.