DeutschΕλληνικάEnglishEspañolFrançaisItalian   A B C D E F G H I L M N O P Q R S T U V W Y   v Next » Variation Margin The additional margin required by a broker to cover market fluctuations. Volatility A statistic measurement for price fluctuations through time. Also known as Standard Deviation. Next » Top Next More information           Home | Software | Why Forex | Tools | JC Lyons Education | About JC Lyons | Support | Contact