miércoles, 15 de marzo de 2017

Desde Investopedia


1. Volatility is a statistical measure of the dispersion of returns for a given security or market index. Volatility can either be measured by using the standard deviation or variance between returns from that same security or market index. Commonly, the higher the volatility, the riskier the security.

2. A variable in option pricing formulas showing the extent to which the return of the underlying asset will fluctuate between now and the option's expiration. Volatility, as expressed as a percentage coefficient within option-pricing formulas, arises from daily trading activities. How volatility is measured will affect the value of the coefficient used.
Term Of The Day Selected By
Morris Armstrong
Armstrong Financial Strategies
Cheshire, CT

Breaking it Down:
In other words, volatility refers to the amount of uncertainty or risk about the size of changes in a security's... Read More

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