Beta

A measure of a stock's volatility in relation to the S&P 500's volatility. S&P 500's volatility is always 1.0. 

Syntax: Beta([Symbol])

[Symbol] = Optional.

Comments: 

If a stock has a Beta of 1.5 and the market rises 10%, we should expect the stock to rise 15%.

Examples:

Beta(YHOO)

The current Beta for YHOO.